Iron & Steel

China Supplier Price 140mm A36 1045 ST52 Mild Steel Round Bar Advantages A low carbon steel with a medium manganese content, 1018 has good case hardening properties and excellent machinability. Suitable for shafting and for other applications that do not require the greater strength of high carbon and alloy steels. Carbon steel has high strength, good plasticity and toughness. It belongs to the comprehensive mechanical properties of good steel, with very broad, mainly used to make the load of the larger small cross-section conditioning large normalizing and stress smaller parts, and of the request is not high intensity of surface quenching parts, such as the spindle, crank shaft, shaft, gear, worm, keys, pins, etc. Water quenching has a tendency to form cracks, and parts with complex shapes should be hardened in hot water or oil. Product Description Product Name Carbon Steel Round Bars OD 10mm-300mm Wall Thickness 10mm-300mm Length 1m-12m,or as customer's requirements. Packing Widely used in,construction industry, MechanicalEngenieering, Aviation Equipment, Rail Transit Equipment Delivery time Usually 7-15 dyas, or upon negotiation Shipment time Within 7-10 workdays after receiving deposit or L/C Payment terms T/T,LC Service OEM and ODM Sample Free samples and customization available Lead Time Usually 15 working days, the specific time is determined by internal and external factors Technique Hot Rolled Cold Rolled Package Waterproof packaging + wooden box, or according to customer needs Test Chemical Component Analysis,Mechanical Properties,Technical Properties,Exterior Size Inspection,hydraulic testing,X-ray Test Application Boiler&economizer, Energy, Petrochemical, Mining, Food, Paper, Gas And Fluid Industry

Large Diameter Seamless Steel Pipe Round Galvanized Steel Pipe Elbow It is well known that elbows without anti-corrosion treatment are easy to damage, but because of their cheap price, they are widely used in some projects that are not very demanding. In the production process, the cold-formed pipe can be bent with a ready-made straight pipe with a pipe bending machine, and the one-time completion does not require secondary anti-corrosion. Compared with the elbow, the radius is more biger. R=1 to 2 times is an elbow, and the larger multiple is called an bend. However, the elbow needs to be customized by the manufacturer, it needs to be anti-corrosion, and the order cycle is long. Product Name Large Diameter Seamless Steel Pipe Round Galvanized Steel Pipe Elbow Size 1/2"-48" Material Carbon steel Standard DIN,ISO,3A,SMS,AS,BS,BPE Radius Long, Short Thickness SCH5S-SCHXXS, JIS, DIN Packaging Wooden Case/Wooden Pallets Others Special design available according to customer's request delivery time according to the quantity

1.3243 Steel Forging Technology The alloy element content of M35 steel is more than 22%. It is higher than M2 steel about 30%. It’s forging is difficult. You need to pay attention to it as the same as M42 steel forging. First of all, preheat it fully, the heat temperature is 1120℃ – 1150℃. And the temperature of the beginning is 1000℃ – 1050℃, the ending of it is must higher than 899℃. After forging, it should cold slowly and annealing on time to prevent cracking. M35 Steel Annealing Process If you case it up for the annealing after the forging, you will get a better result. If you can not do that, just make it cold to the indoor temperature then make it in. About the annealing process, just put it in the stove with the temperature which is lower than 500℃. Then heat to 840-860℃, keep the temperature for four to five hours. Furnace cooling to 500℃ below than out of it. Cooling slowly in the annealing furnace. After the annealing, its hardness is lower than 255HB. In order to prevent oxidative decarburization happen, the annealing should be careful. And there is an easy way can do that. Just put some wood dust to the annealing furnace. Notice for Quenching and Tempering Preheat two times: 600℃, 860℃. And the time of preheating is twice the time of heating. The request of quenching is 10-12s/mm. Needs the step hardening: 600℃→260-280℃→air cooling. The temperature of secondary hardening is 535-540℃ around. The hardness is bigger than 68HRC for after tempering. But the factories do not want the hardness of cutting tool is more than 68HRC due to the request for production. So it always is been tempering. As we can see from the table, the best temperature for quenching is in the range of 1215-1225℃. In this condition, it is suitable for annual cutting tools. Its hardness is about 67-67.5HRC. It satisfies the needs of high speed steel high speed steel for high strength, high hardness and high wear resistance. M35 steel that been quenching at the temperature below 1190℃ is good material for cold work die and low-speed cutting tools. And if it been quenching at the temperature higher than 1230℃ which will have a great red hardness. It will be a good choice for turning tools and etc. Quenching it in that way will cause overheating. But it is not a trouble, the key is to control it in the right way. Some cutting tools are overheating to be more useful. 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 high speed steels, please contact us for any needs of high speed steel M35 steel.

Minimum Order: 1 bags

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 plate sheet properties and chemical composition as below. 1.3243 Steel Characteristics M35 and M42 are the most popular high speed steel grades in the international. The alloy element content of M35 steel is higher, and also has the cobalt element. So its red hardness is higher. It has great hardness at high temperature. The hot hardness, machinability and wearing resistance are good. 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. 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 2 barrels

M42 Steel Round Bar Sheet Plate Heat Treatment And Produced 1.Machinability It can be drilled, turned, threaded, broached, milled and tapped when it is in its annealed condition and rated at 45% of 1% carbon steel. 2.Forging It is preheated to 871°C (1599°F) in a slow manner and then soaked. This is followed by rapid heating to 1093°C (1999°F) and slow cooling. It is not suitable that temperatures below 982°C (1799°F) for the forging process. 3.Tempering M42 tool steel is tempered for three times at 538-593°C (1000-1099°F) and then cooled completely between cycles to get good results. Tempering is performed in vacuum furnaces or in salt baths. 4.Annealing Annealing must be performed after hot working and before re-hardening. Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1500-1575°F (843-857°C), and hold for 1 hour per inch (25.4 mm) of thickness, minimum of 2 hours. Then cool slowly with the furnace at a rate not exceeding 50°F per hour (28°C per hour) to 1000°F (538°C). Continue cooling to ambient temperature in the furnace or in air. The resultant hardness should be 269 HBW or lower. 5.Hardening It is preheated to 871°C (1599°F), soaked and finally heated to 1204°C (2199°F). 6.Quenching A salt media is used for quenching M42 tool steel at 538°C (1000°F) and then the steel is air cooled. M42 High Speed Steel Round Bar Sheet Plate Supply Range Round Bar Specification: diameter 2mm – 200mm Surface: Black, Rough Machined, Turned or as per given requirements Sheet/Plate/Slab Specif , ication: thickness: 2-200mm; width 200-610mm Surface: Black, Rough Machined, Turned or as per given requirements M42 Steel Grade Equivalent Chart Country USA Germany/UK/France JAPAN ISO Standard ASTM A600-92a EN ISO 4957-1999 JIS G4403: 2006 ISO 4957-1999 Grades M42(t11342) HS 2-9-1-8 SKH59 HS 2-9-1-8 Delivery condition:In annealing (≤269HB), or after heat treatment (65.5- 68.5HRC). Quality control：100% UT (Ultrasonic Testing), UT Standard is SEP 1921-84 C/c. 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags

M42 tool steel is high-speed steel with high cobalt. And it also is called JIS SKH59 and DIN 1.3247 steel. It is mainly used for high toughness precision wear-resistant hardware cold stamping die and cutting tools. It has high toughness and hardness, could reach to 70HRC. Its hot hardness is high and easy to grind and cut. The cutting tools which are made of M42 steel can cut cast superalloys, titanium alloys, and ultra-high-strength steels. But the toughness is a little bad, the temperature should be lower during the quenching. It is used widely to manufacture high precision and complex cutting tools because of its great grinding properties. M42 Steel round bar sheet plate properties and heat treat as below. 1.3247 Steel Characteristics 1.The content of cobalt is 8% or 10% 2.Great wear resistance, hardness and hot hardness 3.Has excellent red hardness and cutting performance 4.Be used widely in industry, such as cutting tools, milling cutters and etc 5.Has high impact ductility M42 Steel Application The application is decided by M42 steel chemical composition and properties. 1.It is used to make a variety of wear-resistant, impact-resistant tools for powerful cutting. 2.It is used to produce a variety of high-hard and saw blades, drills, taps, broaches, hobs and milling cutters. 3.It is the material of advanced dies, screw dies and punches that require more toughness and complex shapes. 4.It is used for cold forging dies and deep drawing dies. For more steel product information,Please search our company(Dongguan Songshun Mould Steel Co., Ltd.) and check the official website!!! Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 2 barrels

Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc. After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter. Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service. Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on. 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags

4340 Steel Round Bar Plate Sheet Supply Range Round Bar Specification: diameter: 10mm – 1000mm; length: 2000mm-5000mm Surface: Black Surface/Bright Surface/ Grinded/Peeled/Turned Sheet/Plate/Slab < , br>Specification: thickness: 50-120mm; width: 2000mm-2300mm; length: 3000mm-5800mm Surface: Black Surface/Bright Surface/ Grinded/Peeled/Turned Stock List Other specifications are determined by daily stock. Customization is also acceptable. 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. Our company provides various alloy steels. Our alloy steels are of the best quality in terms of wear resistance, strength, corrosion resistance and high temperature resistance. You are welcome to inquire and order, and there is nothing wrong with choosing us! ! ! 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 2 barrels

T1 tool steel is a tungsten high speed steel. Its hardness, red hardness and the hardness at the high temperature are high, and it is easy to grind process. And it also is called JIS SKH2 and DIN 1.3355 steel. It can be used to process soft or medium hardness(300HB – 320HB or lower) materials. And it is the good material for high temperature wear-resistant mechanical parts. T1 Steel round bar sheet plate properties and heat treat as below. T1 Steel Characteristics It is a tool steel with high hardness, high wear resistance and high heat resistance, also be called high speed tool steel. It has good machinability, but with low strength and impact toughness, easy to oxidize and carbon elimination. T1 Steel Application The application is decided by T1 steel chemical composition and properties. It is mainly used to make complex blades and impact-resistant metal cutting tools. It can also manufacture high-temperature bearings and cold extrusion dies. It also is used to make gear tools, milling tools, and tools such as punches, cutters and etc. Steel Classification It is a complex steel type with a carbon content generally is 0.70% – 1.65%. The amount of alloy elements is large, and the total amount is 10% – 25%. Classified according to the alloy elements as below: Tungsten high speed steel(tungsten content is 9% – 18%) Tungsten-molybdenum high-speed steel(tungsten content is 5% – 12% and the content of molybdenum is 2% – 6%) High molybdenum high speed steel(tungsten content is 0% – 2% and the content of molybdenum is 5% – 10%) Vanadium high-speed steel, according to the different vanadium content, which is divided into general vanadium containing vanadium (1 to 2% vanadium) and high vanadium content (2.5 to 5% vanadium) Cobalt high speed steel (cobalt content is 5% – 10% ) According to the different applications, they can be divided into general purpose and special purpose Dongguan Songshun Mould Steel Co.,LTD We provide a great variety of steels, competitive price with good quality and keep the mass stock are over 20000 tons.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 offer a wide range of high-quality steel for automobile manufacturing, engineering machinery, mold tooling, cutting tools manufacturing industry and also get high praise by at home and aboard clients. Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags

1.6511 Steel Characteristics 1.It has great atmospheric corrosion resistance, fatigue resistance and strength. 2.Stay excellent toughness, wear resistance and fatigue strength after heat treated. 3.It is alloy steel with low carbon and high nickel. About the coating and softening for leather knife sheath, it is a great choice. 4.4340 alloy steel bar is used widely in the aerospace industry because of great strength. 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. 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags

1.6523 Steel Grade Equivalent Chart Country USA Germany/UK/France JAPAN ISO Standard ASTM A29 / A29M-05 EN 10263/4-2001 JIS G4053-2008 ISO 683/18-1996 Grades 4340 41NiCrMo7-3-2, 1.6511 SNCM439 36CrNiMo4 4340 Steel Chemical Composition Stand C (%) Mn (%) P (%) S (%) Si (%) Cr (%) Mo (%) Ni (%) ASTM A29 / A29M-05 0.38-0.43 0.60-0.80 ≤0.035 ≤0.040 0.15- 0.35 0.70-0.90 0.20-0.30 1.65-2.00 EN 10263/4-2001 0.38-0.44 0.60-0.90 ≤0.025 ≤0.025 ≤0.30 0.70- 0.90 0.15-0.30 1.65-2.00 JIS G4053-2008 0.36-0.43 0.60-0.90 ≤0.030 ≤0.030 0.15-0.35 0.60-1.00 0.15-0.30 1.60-2.00 ISO 683/18-1996 0.32-0.40 0.50-0.80 ≤0.035 ≤0.035 0.10-0.40 0.90-1.20 0.15-0.30 0.90-1.20 1.6511 Steel Physical Properties Properties Metric Imperial Density 7.85 g/cm³ 0.284 lb/in³ Melting Point 1427°C 2600°F 4340 Steel Mechanical Properties Properties Metric Imperial Tensile strength ＞980 MPa 142140 psi Yield strength ＞835 MPa 121110 psi Elongation at break ＞12% ＞12% Reduction of area ＞55% ＞55% Hardness ≤269HB ≤269HB chemical composition: C:0.37-0.44 Si:0.17-0.37 S:≤0.035 P:≤0.035 Mn: 0.50-0.80 Cr: 0.60-0.90 Mo: 0.15-0.25 Ni: 1.25-1.65 Heat treatment specification: Quenching at 850℃, oil cooling; tempering at 600℃, water cooling, oil cooling Brinell hardness GBW of annealed or high-temperature tempered steel is less than or equal to 269; 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 2 barrels

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 1.6563. 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. Describe: 4340 belongs to the American standard high-strength alloy structural steel, which is made of high-quality carbon structural steel by appropriately adding one or more alloying elements (the total content does not exceed 5%). Corresponding steel number: China GB steel number 40CrNiMoA, German DIN steel number 36CrNiMo4, German DIN material number 1.6511, French NF standard 40NCD3, Japanese JIS standard SNCM439, British BS standard 816M40, American AISI/ASTM4340, American UNS standard G43400 What we do? We specialized in steel as a professional special steel 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. At Songshun, we believe: You Get What You Pay for. Internationally, while someone seems to be lost in the desire to Chinese steel, others take an opposite attitude. Under the trend of economic globalization, we believe that high-quality steel is definitely not at a low price. As long as you can communicate with us with your heart, we will do our best to give you the best results. We see that as an opportunity: We’re excited to cooperate with customers from all around the world to change the impression for Chinese steel of other people. 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags

AISI 4140 Chemical Composition C 0.38-0.45% Cr 0.90-1.20% Si 0.17-0.37% Mo 0.15-0.25% Mn 0.50-0.80% Ni ≤0.30% P ≤0.035% S ≤0.035% SAE 4140 Mechanical Properties Tensile Strength σb (MPa):≥1080(110) Yield Strength σS (MPa):≥930(95) Elongation δ5 (%):≥12 Reduction ψ (%):≥45  Impact Energy Akv (J):≥63 Impact Toughness akv (J/cm2):≥78(8) Annealed Hardness ≤217HB 4140 Product Details Describe 4140 steel belongs to medium hardenability steel, which has the advantages of high yield, good comprehensive mechanical properties, good strength, good toughness and high hardenability. Its carbon content is 0.33%-0.48%, its tensile strength is 795 MPa, and its hardness is It is 241HB Advantage After heat treatment, 4140 has good strength and good comprehensive mechanical properties, and has good manufacturability. It can be used to make steam turbine fasteners, salvage tools, etc. Feature This steel has good strength, good toughness, high hardenability, good workability, small processing deformation, quite good fatigue resistance, small deformation during quenching, high creep strength and durable strength at high temperature and so on. Application It is used to manufacture forgings that require higher strength and larger quenched and tempered section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clips that are heavily loaded, and can also be used for Drill pipe joints and fishing tools for oil wells below 2000m, and can be used for molds of bending machines, etc. Our advantage Focus on the steel industry for more than ten years Strength factory Professional service Quality assurance Customized according to customer requirements Factory price Fast shipping time Good after-sales service Happy to work with customers High repurchase rate, etc. Please request a quote. Contact us: MiKi Zhuo E-mail:jacklu@songshunsteel.com Skype/W , hatsapp/Wechat:+86-18269260283 ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China For more 4140 steel product information, please click this link: https://steelpurchase.com/4140-scm440-172 , 25-steel/ Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 2 barrels

AISI 4140 Steel Characteristics 1.It is low alloy steel with chromium, molybdenum, and manganese. 2.Great toughness, fatigue strength, abrasion and impact resistance. 3.It is widely be used in the industry due to its excellent versatility and usefulness. 4.The higher carbon content in it, the higher the strength and heat treatment capabilities it is. 5.It can be oil hardened to relatively high hardenability. ASTM 4140 Steel Application 4140 steel is medium hardenability steel with good strength and good comprehensive mechanical properties after heat treatment. It has good manufacturability. The maximum temperature of use is 427 °C. It can be used to make turbine fastener, tool bodies, forming dies, brake dies and etc. And it also as the material of Oil deep well drill pipe joints and fishing tools below 2000m. 4140 Steel Round Bar Sheet Plate Heat Treatment Machinability At the annealed condition, 1.7225 alloy tool steel has good machinability. Forming DIN 1.7225 steel has high ductility. It can be formed using conventional techniques in the annealed condition. It is required more pressure or force for forming because it is tougher than plain carbon steels. Welding 1.7225 alloy steel can be welded using all advanced techniques. But, the mechanical properties of it will be affected if it is welded in the heat treated condition, and post weld heat treatment should be performed. Heat Treatment 1.7225 tool steel is heated at 845°C(1550°F) followed by quenching in oil. Before hardening, it can be normalized by heating at 913°C (1675°F) for a long period of time followed by air cooling. Forging It is forged at 926 to 1205°C(1700 to 2200°F) Hot Working 4140 steel can be hot worked at 816 to 1038°C(1500 to 1900°F) Cold Working 1.7225 steel can be cold worked using conventional methods in the annealed condition. Annealing Heat it to 800℃ – 850℃, hold until temperature is uniform throughout the section and cool in furnace. Normalizing Heat 1.7225 alloy steel to 870℃ – 900℃, hold it until the temperature is uniform throughout the section, soak for 10 – 15 minutes and cool in still air. Tempering DIN 1.7225 steel can be tempered at 205 to 649°C (400 to 1200°F) depending upon the desired hardness level. The hardness of the steel can be increased if it has lower tempering temperature. For example, tensile strength of 225 ksi cab be achieved by tempering at 316°C (600°F), and tensile strength of 130 ksi can be achieved by tempering at 538°C (1000°F). Hardening DIN 1.7225 alloy steel can be hardened by cold working, or heating and quenching. Test How is SAE 4140 steel tested? Our AISI 4140 steel round bar and steel plate composition detection is carried out by a spectrometer, which is fast, accurate and efficient in detection; hardness is tested by a hardness tester, The hardness tester is based on the Leeb hardness measurement principle, which can easily and quickly measure a variety of metal materials. While displaying the hardness measurement value immediately, it can be freely converted between different hardness scales, and the tolerance limit can be set in advance, and it will automatically alarm when it exceeds the range. 1. Measuring range: (170-960)HLD,(17-68.5)HRC,(19-651)HB,(80-976)HV,(3 , 0-100)HS, (59-85)HRA(13-100 )HRB 2. Measurement direction: support 360° (vertical down, oblique down, horizontal, oblique up, vertical up) 3. Hardness scale: Richter (HL), Brinell (HB), Rockwell B (HRB), Rockwell C (HRC), Rockwell A (HRA), Vickers (HV), Shore (HS) 4. Display: quarter dot matrix LCD 5. Data storage: maximum 500 groups (impact times 32 to 1) 6. Working voltage: 3V (2 AA size alkaline batteries connected in series) 7. Continuous working time: about 100 hours (when the backlight is not turned on) 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:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags