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Summary of 11/22/24 20:17 GMT:>> Show Compact View
12/25/23 8:31 GMT
ASTM A312 304 / 304L/316L pipes for construction project

ASTM: A312 TP 304 / 304L / 304H / 316 / 316L / 317 / 317L / 321 / 310 / 347 / 904L etc Others: Duplex, Super Duplex, Monel, Nickel, Inconel, Hastelloy Size: Upto 48” NB. (Seamless & Welded) Wall thickness: Sch. 5S to Sch. XXS Our team: Production dept.+planning dept. take your order in well control QC center: technical/inspection/maintenance dept. ensure you most reliable quality Marketing dept.: project/sales/purchasing dept. bring about growing presence in global market Service team: customer service/complaints/legal affairs dept. always be with you to solve your doubts Logistic dept.: shipping/stock/transport dept. make the best arragements to save your cost Financial dept./risk management group provide strong support for business operation

Minimum Order: 10 long tons

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nafess chung
8615073181292
8615073181292
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Central Steel Manufacturing Co.,Ltd.
No.468,Tongzipo West Road, High-tech Industrial Development Zone,Yuelu District, Changsha, China
Changsha Hunan Province 410221
China
12/25/23 8:30 GMT
API 5CT OCTG for Marine construction projects

Tubing API 5CT, 1.9’’~4-1/2’’, J55/N80/L80/P110, PE/NUE/EUE. Casing API 5CT, 4-1/2’’~20’’, K55/N80/L80/P110, PE/STC/LTC /BTC.

Minimum Order: 10 long tons

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nafess chung
8615073181292
8615073181292
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Central Steel Manufacturing Co.,Ltd.
No.468,Tongzipo West Road, High-tech Industrial Development Zone,Yuelu District, Changsha, China
Changsha Hunan Province 410221
China
12/25/23 6:40 GMT
GB 60Si2Mn Steel Coil, JIS SUP6, DIN 60Si7

60Si2Mn steel coil is a widely used silicon-manganese spring steel, which has high hardenability, good thermal processing performance, stable process performance, good comprehensive mechanical properties, decarburization resistance, high fatigue strength and anti-shock performance and so on. GB 60Si2Mn Steel Coil Application The application is decided by M2 steel chemical composition and properties. It has high hardness, red hardness. Good thermoplasticity and excellent toughness. It is used to make tools that require has good wear resistance and toughness which can sustain large impact forces. Such as pinion cutters, planers, milling cutters, turning tools, drill bits and etc. GB 60Si2Mn Steel Coil Supply We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. We are a professional special steel stockist and supplier with a high-quality stand for many years. As a professional 60Si2Mn steel coil supplier, please contacts us for any request of AISI 60Si2Mn/DIN 1.0909 steels materials. Songshun Steel always with you. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Tiktok:songshunsteelfactory Songshun Facebook:Songshun Steel Songshun Twitter:Songshun Steel Songshun YouTube:SONGSHUN STEEL Songshun Company Website: https://songshunsteel.com/ songshun , steel414043401

Minimum Order: 2 barrels

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Songshun Steel
+8618269260283
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:35 GMT
AISI 4130 Steel Coil, JIS SCM430, DIN 1.7218

AISI 4130 steel coil is a low alloy steel containing chromium, molybdenum and medium carbon, which is very similar to 4140 steel. It also has the characteristics of high strength and toughness, high hardenability, good weldability and good machinability. AISI 4130 steel has relatively high requirements for welding and heat treatment. With proper heat treatment, it is easier to process and has excellent ductility after annealing. AISI 4130 Steel Coil Application AISI 4130 steel coil contains chromium and molybdenum as reinforcements and is easy to weld, critical for fabrication, welding, cutting and other high stress, high temperature applications. Commonly used in the following industries: (1) Medium-sized machinery manufacturing It is mainly used to manufacture quenched and tempered parts with large cross- section and working under high stress conditions; (2) Industrial manufacturing Commonly used to make milling cutters and tools; (3) Automobile industry Manufacture of vehicle parts, gears, bearings, etc.; There are also industries such as aerospace, oil and gas industries, and chemicals. 4130 Steel Coil Characteristics Easy to weld, easy to process Excellent ductility Corrosion resistance, good heat resistance High strength, high toughness High hardenability and wide application Good machinability ASTM 4130 Steel Coil Forged Forging of AISI 4130 steel can be performed at temperatures between 950 °C and 1230 °C (1750 and 2250 ºF). The lower the temperature, the finer the grains will be. Too low a temperature may affect the uniformity of the structural section, requiring normalizing before heat treating the steel. 4130 Steel Coil Supply 4130 steel coil is widely used in various fields because of its toughness, ease of processing and weldability.We Songshun Steel have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. We are a professional special steel stockist and supplier with high quality booths for many years. As a professional 4130 steel coil supplier, please contact us if you have any requirements for AISI 4130/DIN 1.7218 steel material. Songshun Steel is always with you. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!!songshunsteel414043401

Minimum Order: 2 barrels

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Songshun Steel
+8618269260283
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:33 GMT
good weldability and impact performance 1045 Steel Coil

AISI 1045 steel coil is a high-strength high-quality medium carbon steel with good weldability, good machinability and impact performance, and it is hot- pressed and cold-pressed into coils with good wear resistance and toughness. 1045 steel coil is widely used in all industrial applications that require higher wear resistance and strength, and are also used in the manufacture of mechanical parts that require high strength. 1045 Steel Coil Application 1045 steel is widely used for the industry application that required higher strength and wear resistance than low-carbon steel. And the typical applications are gears, shafts, bolts, forged connecting rods, rolls, crankshafts, sockets, heavy-duty mandrels and so on. C45 Steel Coil Characteristics 1.It is carbon steel and has great weldability and machinability. 2.After normalized and hot rolled, it will get high strength and impact properties. 3.It has low hardenability and critical hardenability diameter is 12-17mm in the water. And there has a tendency to crack when water quenching. 4.The hydrogen welding and argon arc welding is good for it, but the gas welding is not. It is required to preheat before the welding, and stress relief annealing should be performed after welding. 5. Good cold and hot workability, good mechanical properties. 1045 Steel Process Notes 1.The hardness is between HRC20~HRC30 after quenching and tempering. 2.After quenching, the hardness is between HRC55~58 and the limit value up to HRC62. 3.In order to make the steel performance stable, it should be processed and placed for 15-20 days before the use. The highest hardness for practical application is HRC55 (high-frequency quenching HRC58). 4.It is a high-quality carbon structural steel with low hardness. It is easy to cut, and it is used to make molds, guideposts, tips, templates and etc. 5.Do not use the heat treatment process of carburized and quenched. Notice We are a professional special steel stockist and supplier with a high-quality stand for many years. As a professional 1045 steel coil supplier, please contacts us for any request for it. Songshun Steel always with you. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!!songshunsteel414043401

Minimum Order: 2 barrels

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Songshun Steel
+8618269260283
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:21 GMT
AISI D6 Steel Round Bar Sheet Plate, JIS SKD2, DIN 1.2436

D6 steel is a high-carbon, high chromium tool steel alloyed with tungsten that is characterized by high compressive strength, high wear resistance, high surface hardness and good hardening stability. It is also called SKD2 steel and DIN 1.2436 steel. And D6 steel chemical composition and heat treatment information are below. Tool steels are primarily used to manufacture tools that can be used for machining metals, woods, and plastics. They are generally ingot-cast wrought products, and have the potential to be stable at elevated temperatures and withstand high specific loads. D6 Steel Application SKD2 steel chemical composition makes it become good tool steel in the industry. SKD2 steel is used for forming tools; molds for abrasive plastics and ceramics; long-run press tools; blanking and shearing tools for hard materials; stamping tools; scraping tools and etc. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Tiktok:songshunsteelfactory Songshun Facebook:Songshun Steel Songshun Twitter:Songshun Steel Songshun YouTube:SONGSHUN STEEL Songshun Company Website: https://songshunsteel.com/ songshun , steel414043401

Minimum Order: 1 bags

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Songshun Steel
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:16 GMT
cool work mold steel D2 steel round bar stockists

D2 steel round bar and plate can be used to produce cold work mold with a large cross-section, complex shape, high impact force, and high wear resistance. It also is called DIN 1.2379 and JIS SKD11 steel. It is a high-carbon and high- chromium cold work mold steel. It is widely used in the world. It has high hardenability and the high-temperature oxidation resistance is good. The anti- corrosion ability is good after quenching and polishing, and the deformation is small after the steel heat treatment. D2 Steel Application 1.2379 steel is used for blanking or forming dies, thread rolling dies, shear knives, food-processing knives, gauges, punches and etc. D2 Steel Round Bar Sheet Plate Heat Treatment Heat Treatment DIN 1.2379 steels alloy should be preheated very slowly to 815℃ (1500°F) and the temperature can be increased to 1010oC (1850°F). Then held at 1010oC (1850°F) for 20 to 45 minutes and air-cooled (air quenched). Annealing Annealing of 1.2379 tool steels material should be done at 871 to 898°C (1600 to 1650°F) followed by slow furnace cooling at 4.4°C (40°F) per hour or less, after which cooling rate could be increased. At the same time, must do something to prevent excessive carburization or decarburization. Stress Relieving Heat it slowly to 1050°-1250°F, allow to equalize, and then cool in still air(Strain Relieving) Preheat Prior To Hardening Preheat slowly to 1350°-1450°F and hold at this temperature until steel 1.2379 steel material is uniformly heated. Hardening After thorough preheating, heat to 1800°-1850°F. Hold it at the hardening temperature until it is completely and uniformly heated. Quenching DIN 1.2379 steel tool material is an air hardening steel and will develop hardness on cooling in still air. To avoid scaling and prevent decarburization on the surface, controlled atmosphere or vacuum furnaces are recommended. Parts should be allowed to cool to 150F, or to where they can be held in the bare hand, and then temper immediately. Tempering The tempering temperature on material 1.2379 steel may be varied according to the desired hardness. 1.2379 steels can be tempered at 204°C (400°F) for achieving Rockwell C hardness of 61 and at 537°C (1000°F) for a Rockwell C hardness of 54. Compare Chinese Cr12Mo1V1 steel, American D2 steel, Japanese SKD11 steel, the chemical composition of them is the same, but the performance is very different. After heat treatment, the color of Cr12Mo1V1 is a little orange-red, and the deformation would be large. It is easy to fracture during use. And the hardness of D2 steel is higher than SKD11 steel, but the toughness is not better than SKD11 steel. SKD11 steel is light and smooth, with the best overall performance. AISI D2 Steel Round Bar Plate Sheet Supply We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. We are a professional special steel stockist and supplier with a high-quality stand for many years. Please contact us for any request of D2/1.2379 steels materials. Songshun Steel always with you. Songshun Steel After over 20 years of development and growth, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter. The excellent customer group, capital conditions, service attitude and professionalism always push us to get better to service customers. The great experienced exporting team and professional engineer team as our strong back to make everyone understand what Chinese steel really is.

Minimum Order: 1 bags

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Songshun Steel
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:11 GMT
AISI H11 Steel Round Bar Sheet Plate, DIN 1.2343, JIS SKD6

H11 steel also is called DIN 1.2343 and JIS SKD6 steel. 1.2343 steel is the air-cooling type hot work mold steel. It is one of the three most commonly used of hot work mold steel in the European die-casting industry. The carbide is small and distributed uniformly in steel. H11 tool steel has great cold and heat fatigue resistance, corrosion resistance, hot and cold processing performance and hardenability. It has oxidation resistance, high toughness and wear resistance in the medium temperature. H11 Steel Round Bar Plate Sheet Heat Treatment 1.Machinability The machinability rate of 1.2343 tool steels is nearly 75% of that of the W group tool steels. 2.Forming 1.2343 tool steels are formed by using conventional methods, machining and forging. 3.Welding 1.2343 tool steels can be readily welded by conventional methods. 4.Heat Treatment 1.2343 tool steels are preheated to 816°C (1500°F). Then the steels are directly heated by increasing the temperature to 1010°C (1850°F) followed by holding for 15 to 40 mins. The steels are then air-quenched. 5.Forging 1.2343 tool steels are forged at 1121°C (2050°F). For this type of steels, forging below 899°C (1650°F) is not preferable. 6.Cold Working Cold working may be carried out on 1.2343 tool steels using conventional methods. 7.Annealing 1.2343 tool steels are annealed at 871°C (1600°F) and slowly cooled at 4°C (40°F) in the furnace. 8.Tempering Tempering is carried out on 1.2343 tool steels at a temperature ranging from 538 to 649°C (1000 to 1200°F) to obtain Rockwell C hardness of 54 to 38. Double tempering can also be performed in these steels every one hour at the preferred tempering temperature. Notice We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. We are a professional special steel stockist and supplier with a high-quality stand for many years. As a professional H11 steel supplier, please contacts us for any request of H11/1.2343 steels material. Songshun Steel always with you. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Company Website: https://songshunsteel.com/ songshun , steel414043401

Minimum Order: 1 bags

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Songshun Steel
+8618269260283
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:09 GMT
High Speed Tool Steel M35 Steel Factory Supply

M35 steel is high speed tool steel . It also is called SKH55 steel and 1.3243 steel. After the heat treatment, its hardness, red hardness and wear resistance can be improved.M35 high speed steel is a good material for making tools which can handle high impact and abrasion. And it always is used to make advanced die, screw dies, reamer, milling cutter, iron head, punch, complex shape tools with high toughness. It is easy to do the hot and cold process. After the quenching and tempering, the hardness will be the same as M42 steel . And the hardness of them is 66±1HRC and 67±1 HRC. M35 Steel Round Bar Application 1.It can be made all kinds of high hardness cutting tools. Such as saw blades, drills, taps, broaches, hobs and various milling cutters. 2.Also, it is good material for cold forging dies, drawing dies, cutting tools and etc. 3.It is widely used in the cold stamping products industry such as watch case factory and screw factory. It is suitable for the manufacture of wear-resistant and impact-resistant high- hardness tools for powerful cutting, advanced punching dies, screw dies, tools that require toughness and complex shapes, reamers, milling cutters, iron heads, punches, etc. The main uses are saw blades, drills, taps, hobs, broaches, end mills and various milling cutters, etc. It is also an excellent material for cold forging dies, wire drawing dies, knives, etc. It is widely used in cold stamping products industries such as watch case factories and screw factories. Notice In China, we have been focusing on the steel industry for decades, as a professional supplier, a powerful steel factory, advanced technology, high- quality steel, we have our own cutting and processing facilities. Specific specifications can be customized and customized according to your needs. Provide reliable M35 high speed steel products as well as other high speed steels, please contact us for any needs of high speed steel M35 steel. SONGSHUN STEEL For more than 20 years, we have been committed to providing customers with high-quality products and solutions, and produced in strict accordance with international standards. Every year, our company’s export share accounts for 90%, covering many countries and regions in the world, and has successfully participated in many large-scale steel projects.songshunsteel414043401

Minimum Order: 1 bags

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Songshun Steel
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:05 GMT
AISI M2 Steel Round Bar Sheet Plate, JIS SKH51, DIN 1.3343

M2 high speed tool steel is tungsten-molybdenum high-speed steel with a well- balanced carbon composition and high toughness. It is also called JIS SKH51 and DIN 1.3343 steel. It is easy to overheat, control the quenching heating temperature is necessary and the heat treatment protection requirements are strict. It is used widely to make cutting tools because of its great hardness and wear resistance. It has replaced T1 high speed steel in most applications, become the first choice of customer due to its great performance and extremely high-performance price ratio. M2 Steel Round Bar Sheet Plate Heat Treatment Machinability The shaping of M2 tool steels may be executed using grinding strategies. But, which has bad grinding capability. So they’re called as “medium” machinability tool steel under annealed conditions. The machinability of these steels is only 50% of that of the easily machinable W group or water hardening tool steels. Annealing Heat to 1600° F, soak thoroughly at heat. Furnace cool 25° F per hour to 900° F, air cool to room temperature. Approximate annealed hardness 241 Maximum Brinell. Stress Relief of Unhardened Material: Heat slowly to 1200 to 1250° F. Soak for two hours per inch of thickness at heat. Slow cool(furnace cool if possible) to room temperature. Hardening Heat M2 steel slowly to 1550° F, soak fully, heat to 1850° F, soak thoroughly. Soak time in the furnace varies from a few minutes to 15 minutes, depending on tool size, the heat capacity of the furnace, and the size of the charge. – Heat to 2150 to 2200° F for max. toughness and minimum distortion. – Heat to 2250 to 2275° F for max. Tempering Double tempering is necessary, sometimes preferred three times tempering. Soak for 2 hours per inch of thickness. Air cool to room temperature between tempers. The best tempering range for hardness, strength and toughness is 1000 to 1050° F. Quenching For full hardness, need to oil quench to 150-200° F. Air quenches to 150° F. When quenching in hot salt maintains the quench just above the Ms temperature. After equalizing withdraw parts from the hot salt and air cooled to 150° F. M2 high speed steel is preheated prior to hardening at 2610 ° C(4730 ° F). Then heated rapidly from 2610 ° C (4730 ° F) to 3960 ° C (7160 ° F). The steel is finally cooled for 3 to 5 minutes and quenched in air, salt bath or oil. Notice We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. We are a professional special steel stockist and supplier with a high-quality stand for many years. As a professional M2 steel supplier, please contacts us for any request of AISI M2/DIN 1.3343 steels materials. Songshun Steel always with you. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Tiktok:songshunsteelfactory Songshun Facebook:Songshun Steel Songshun Twitter:Songshun Steel Songshun YouTube:SONGSHUN STEEL Songshun Company Website: https://songshunsteel.com/ songshun , steel414043401

Minimum Order: 1 bags

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Songshun Steel
+8618269260283
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 6:01 GMT
low alloy steel containing chromium AISI 4130 steel coil

AISI 4130 steel coil is a low alloy steel containing chromium, molybdenum and medium carbon, which is very similar to 4140 steel. It also has the characteristics of high strength and toughness, high hardenability, good weldability and good machinability. AISI 4130 steel has relatively high requirements for welding and heat treatment. With proper heat treatment, it is easier to process and has excellent ductility after annealing. AISI 4130 Steel Coil Application AISI 4130 steel coil contains chromium and molybdenum as reinforcements and is easy to weld, critical for fabrication, welding, cutting and other high stress, high temperature applications. Commonly used in the following industries: (1) Medium-sized machinery manufacturing It is mainly used to manufacture quenched and tempered parts with large cross- section and working under high stress conditions; (2) Industrial manufacturing Commonly used to make milling cutters and tools; (3) Automobile industry Manufacture of vehicle parts, gears, bearings, etc.; There are also industries such as aerospace, oil and gas industries, and chemicals. 4130 Steel Coil Characteristics Easy to weld, easy to process Excellent ductility Corrosion resistance, good heat resistance High strength, high toughness High hardenability and wide application Good machinability 4130 Steel Coil Supply 4130 steel coil is widely used in various fields because of its toughness, ease of processing and weldability.We Songshun Steel have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. We are a professional special steel stockist and supplier with high quality booths for many years. As a professional 4130 steel coil supplier, please contact us if you have any requirements for AISI 4130/DIN 1.7218 steel material. Songshun Steel is always with you. We specialized in steel as a professional steel manufacturer and supplier, and also can give you technical advice and support for your business base on our professional technical knowledge. Because of our great and reliable quality and professional service in this field, our market is all around the world. Including Canada, Australia, Brazil, Turkey, Malaysia, Vietnam, Iran, Pakistan, UK and etc. songshunsteel414043401

Minimum Order: 2 barrels

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Songshun Steel
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 5:56 GMT
Forged ISO 100Cr6 GB GCr15 AISI 52100 Steel Material

AISI 52100 steel is the representative of high carbon chromium bearing steel type. And it also can be called ISO 100Cr6 steel, GB GCr15 steel. After quenching and tempering, its hardness would be high and uniform. Its wear- resistance and fatigue strength are high and with good combination properties. And also with great hot workability. After spheroidizing annealing, it has great processability, but it is easy to get the flake. It is used to make the steel ball, bushing, running pulley of the transmission shaft of the internal combustion engine, electric locomotive, machine tools, tractors and etc. 52100 alloy steel has lower alloy contents and with high hardenability. 100Cr6 Steel Application It can be used to make all kinds of bearing rings with max diameter 2500mm and max wall thickness 12mm. And it is good material for dies, precision measuring tools and other machine fittings with high wear-resistance and fatigue strength. And due to its properties, people usually use it to make the steel balls, Needle roller bearing and shafts. Production of 52100 Alloy Steel Round Bar The requirement of the quality of smelting for bearing steel is extremely high. It is very important to control the content and distribution of sulfur, phosphorus and nonmetallic inclusion. Because the content and distribution of the nonmetallic inclusion have a great impact on the service life of bearing steel. The more content of it is, the service life will be less. In order to raise the quality of smelting, many factories use the electric arc furnace to do that, and with the electroslag remelting. 52100 Steel for Sale We are a professional special steel stockist and supplier with a high-quality stand for many years. We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. As a professional 52100 steel supplier, please contacts us for any request for it. Songshun Steel always with you.songshunsteel414043401

Minimum Order: 1 bags

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Songshun Steel
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 5:51 GMT
4340 Steel Round Bar Sheet Plate Heat Treatment and Process

4340 Steel Round Bar Sheet Plate Heat Treatment and Process Stress Relieving For pre-hardened steel stress relieving is achieved by heating steel 4340 to between 500 to 550°C. Heat to 600 °C – 650 °C, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm section, and cool in still air. Cold Working AISI 4340 alloy steel can be cold worked using all conventional methods in the annealed condition. It has high ductility. Annealing A full anneal may be done at 844°C (1550 F) followed by controlled (furnace) cooling at a rate not faster than 10°C (50 F) per hour down to 315°C (600 F). From 315°C 600 F, it may be air cooled. Tempering AISI 4340 alloy steel should be in the heat treated or normalized and heat treated condition before tempering. The tempering temperature for depends upon the strength level desired. For strength levels in the 260 – 280 ksi range temper at 232°C (450 F). For strength in the 125 – 200 ksi range temper at 510°C (950 F). And don’t temper the 4340 steels if it is in the 220 – 260 ksi strength range as tempering can result in degradation of impact resistance for this level of strength. Tempering should be avoided if possible within the range 250 °C – 450 °C due to temper brittleness. 4340 Steel Heat Treatment AISI 4340 alloy steel is heat treated at 830°C (1525°F) followed by quenching in oil. Flame or Induction Hardening As mentioned above, pre-hardened and tempered 4340 steel bars or plates can be further surface hardened by either the flame or induction hardening methods resulting in a case hardness in excess of Rc 50. AISI 4340 steel parts should be heated as quickly as possible to the austenitic temperature range (830 °C – 860 °C) and required case depth followed by an immediate oil or water quenching, depending upon hardness required, workpiece size/shape and quenching arrangements. Following quenching to hand warm, tempering at 150°C – 200°C will reduce stresses in the case with minimal effect on its hardness. All de-carburized surface material must first be removed to ensure the best results. Nitriding Hardened and tempered 4340 alloy steel can also be nitrided, giving a surface hardness of up to Rc 60. Heat to 500°C – 530°C and hold for sufficient time (from 10 to 60 hours) to develop the depth of the case. Nitriding should be followed by slow cooling (no quench) reducing the problem of distortion. The nitrided grade 4340 materials can therefore be machined to near final size, leaving a small grinding allowance only. The tensile strength of the 4340 steel material core is usually not affected since the nitriding temperature range is generally below the original tempering temperature employed. Surface hardness achievable is 600 to 650HV. Machinability It can be machined using all conventional techniques. Machining process can be performed in the annealed or normalized and tempered conditions. Welding Welding of steel in the hardened and tempered condition (as normally supplied), is not recommended and should be avoided if at all possible, because of the danger of quench cracking, as the mechanical properties will be altered within the weld heat affected zone. If welding must be carried out, pre-heat to 200 to 300°C and maintain this while welding. Immediately after welding stress relieve at 550 to 650°C, prior to hardening and tempering. If welding in the hardened and tempered condition is really necessary, then the work piece, immediately on cooling to hand warm, should be if possible stress relieved at 15 °C below the original tempering temperature. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Tiktok:songshunsteelfactory Songshun Facebook:Songshun Steel Songshun Twitter:Songshun Steel Songshun YouTube:SONGSHUN STEEL Songshun Company Website: https://songshunsteel.com/ songshun , steel414043401

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Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 5:49 GMT
AISI 4340 Steel Round Bar Sheet Plate, JIS SNCM439, DIN 1.6511

4340 steel is nickel-chromium-molybdenum alloy steel. It will get high strength after the heat treat. And it has good toughness, fatigue resistance, impact toughness and etc. Its equivalent grade is JIS SNCM439 and DIN 1.6511 / DIN 1.6582. The properties and composition of 4340 steel round bar sheet plate as below. It is an alloy structural grade which used by the SAE International(SAE), and it is chrome-nickel low alloy steel. 4340 steel round bar sheet plate will get high tensile strength, hardness and toughness after heat treatment. It is used widely in the transmission components of heavy chemical machinery. Different sections of each part of the casting which cause the temperature difference stress and phase transformation stress. If you can’t get their laws and characteristics, you can’t take the right rational processes. The consequence is that there is a risk of cracking the casting during the casting or heat treatment. So the control of chemical composition and the choice of the heat treatment process for the casting are really important. 1.6511 Steel Application 4340 alloy steel is used to manufacture large and medium-sized plastic molds that require high strength and toughness. And it is used for making important quality controlling parts with good toughness, high strength, and large size, such as heavy machinery and high load shafts, dia of turbine shafts is larger than 250mm, helicopter rotor shafts, turbojet turbine shafts, blades, high-load transmission parts, crankshaft fasteners, gears and etc. After nitriding, it also can be used to make important parts for special performance requirements. And it will be a great material for high strength and good plasticity parts after low-temperature tempering or isothermal quenching. AISI 4340 Steel Round Bar Plate Sheet Supply We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. We are a professional special steel stockist and supplier with a high-quality stand for many years. As a professional 4340 steel supplier, we can supply 4340 steel for your different applications as above. If you need technical guide, we also can be your strong support, please contacts us for any request for it. Songshun Steel always with you. By the way, 4140 steel has similar properties and its cost is lower than 4340 steel. Just go to visit 4140 steel application and properties. What We Provide Our main products are round and flat bars for alloy steel, tool steel, stainless steel, spring steel, bearing steel and etc. In those years we offers a wide range of high quality steel for engineering machinery, mold tooling, cutting tools manufacturing industry and etc.songshunsteel414043401

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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China
12/25/23 5:44 GMT
AISI 5140 Steel Round Bar Plate Sheet Factory Fabrication

AISI 5140 steel also can be called JIS Scr440 and DIN 1.7035 steel. It is one of the alloy steel as well as the most popular steel grades in the productions of the machine. AISI 5140 steel round bar price is on the medium level and it was easy to processing. After tempering and quenching, the toughness, plasticity and wearing resistance of it will get better. Steel normalizing can make the spheroidizing for the organization of steel get easier. And it will raise the machinability of the semi-finished product with the hardness less than 160HBS. Tempering it at the temperature of 550℃-570℃ which can make it get better mechanical property. And the hardenability of it is higher than S45C steel. 5140 Steel Application After hardening and tempering, it can be used to make the fittings for machines with high medium load and speed of work. Such as the automobile knuckle, gear wheel and axis of the machine tools. If it had been quenching and tempering with medium temperature, it will be a great choice for fittings with high load, low impact and good wearing resistance. Such as the gear wheel, lantern ring and etc. And after quenching and low-temperature tempering, the properties will be better than the last one. People usually use it to make the parts with good wearing resistance and handle high load, low impact. And you can see the principal axis, mechanical bolt and etc are made of it. Test How is ASTM 5140 steel tested? AISI 5140 Steel Chemical Composition Testing-Spectrometer We are sae 5140 Alloy Structural Steel for composition testing using spectrometer.The spectrometer one-time excitation of the sample to analyze its composition method is widely accepted by the public at this stage.Compared with traditional analytical methods, the advantages of spectrometers for the detection of modern steel components are fast, accurate and efficient. This method can directly inject solid samples without chemical digestion, which can reduce the human error caused by the digestion process and the constant volume process; to good quality steel. Songshun Steel Dongguan Songshun Mould Steel Co., LTD which is an industrial and trading company with 3500-7000ts hydraulic forging machine. We provide a great variety of steels, competitive price with good quality and keep the large stock are over 20000 tons.

Minimum Order: 1 bags

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Songshun Steel
+8618269260283
+8618269260283
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Songshun Mould Steel Co., Ltd.
Dongda Fourth Street, Shatou Community, Chang'an Town
Dongguan 523846
China


SOURCE: Import-Export Bulletin Board (https://www.imexbb.com/)
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