Iron & Steel

Square and rectangular pipe is a name for square pipe and rectangular pipe, that is, steel pipes with equal and unequal side lengths. It is made of strip steel that has been processed and rolled. Generally, the strip is unpacked, flattened, coiled, welded to form a round tube, and then rolled into a square tube from the round tube and then cut to the required length. The usual delivery length of square and rectangular tubes is 4000mm-12000mm, mostly 6000mm and 12000mm. The square rectangular tube is allowed to deliver short-length and non-fixed-length products not less than 2000mm, and it can also be delivered in the form of an interface tube, but the buyer should cut off the interface tube when using it. The weight of short-length and non-fixed- length products shall not exceed 5% of the total delivery quantity, and for square and rectangular pipes with a theoretical weight greater than 20kg/m, shall not exceed 10% of the total delivery quantity. Process classification According to the production process, square and rectangular pipes are divided into: hot-rolled seamless square pipes, cold- drawn seamless square pipes, extruded seamless square pipes, and welded square pipes. 1. According to the process - arc welded square tube, resistance welded square tube (high frequency, low frequency), gas welded square tube, furnace welded square tube 2. According to the welding seam - straight seam welded square tube, spiral welded square tube. Material classification The square tube is divided into: ordinary carbon steel square tube, low alloy square tube. 1. Common carbon steel is divided into: Q195, Q215, Q235, SS400, 20# steel, 45# steel, etc. 2. Low alloy steel is divided into: Q345, 16Mn, Q390, ST52-3, etc. Production Standard Classification According to the production standard, the square tube is divided into: national standard square tube, Japanese standard square tube, British standard square tube, American standard square tube, European standard square tube, and non- standard square tube.

Minimum Order: 1 bags

PRODUCT DESCRIPTION 0.7mm 0.8mm 1.0mm 1.5mm 2mm Cold Rolled Stainless Steel Sheet 304 grade Alloy 304/304L resists atmospheric corrosion, as well as, moderately oxidizing and reducing environments. The alloy has excellent resistance to intergranular corrosion in the as-welded condition. Alloy 304/304L has excellent strength and toughness at cryogenic temperatures. Alloy 304/304L is non-magnetic in the annealed condition, but can become slightly magnetic as a result of cold working or welding. It can be easily welded and processed by standard shop fabrication practices. Surface Finish We have imported equipment and professional engineers, so that the surface of each our stainless steel plate is far higher than customer expectations Surface Characteristic Processing Technology N0.1 Original Pickled after hot rolling 2D Blunt Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling 2B Blurred Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + tempering rolling N0.3 Matte Polishing and tempering rolling with 100-120 mesh abrasive materials N0.4 Matte Polishing and tempering rolling with 150-180 mesh abrasive material NO.240 Matte Polishing and tempering rolling with 240 mesh abrasive materials NO.320 Matte Polishing and tempering rolling with 320 mesh abrasive materials NO.400 Matte Polishing and tempering rolling with 400 mesh abrasive materials HL Brushed Grind the surface of the steel belt with an appropriate grinding grain size to make it show a certain longitudinal texture BA Bright The surface is annealed and shows high reflectivity 6K Mirror Rough grinding and polishing 8K Mirror Fine grinding and polishing ASTM Cold Rolled 304 Stainless Steel Sheet 0 Our Factory We have imported equipment, 20,000 tons of inventory, professional masters, and a clean environment. Customer satisfaction is the basis of our service. If you need stainless steel materials, please contact our professional sales as soon as possible. They will give you the fastest. We make the most professional and reasonable quotation at the speed of our company, and look forward to our long- term cooperation as soon as possible ASTM Cold Rolled 304 Stainless Steel Sheet 1 Our Advantage 1. Wide Specifications Range; 2. Pure steel chemical composition; 3. Outstanding mechanical properties; 4. Good performance after welding; 5. Good shape and high precision; 6. Excellent corrosion-resistant and long service life. Package 1. Sheets covered with wooden plate for protection in transportation; 2. All sheets will be loaded in strong wooden packages; 3. Every cartons loaded with good shoring and strengthening; 4. Take container loading pictures and seal the container; 5. Transportation speed is quick. And keep customer each step informed. ASTM Cold Rolled 304 Stainless Steel Sheet 2

Boiler steel plate is one of the very key materials in boiler manufacturing, mainly refers to the hot rolled special carbon steel and low alloy heat resistant steel medium thick steel material used to manufacture boiler shell, pot drum, box end cover, hanger and other important parts. 16MnDR is a kind of steel plate for cryogenic pressure vessel. 16Mn -- indicates that manganese content in steel plate is about 0.16%, D- indicates low temperature, R- indicates pressure vessel. (Usually, steel with a high content of a certain chemical element needs to be marked in the material, for example, 1.6% manganese is written as 16Mn, 16MnDR is used for -40 degree pressure vessel steel plate.

Minimum Order: 1 bags

750 mm Spangle Zinc Coating Hot dip Galvanized Steel Coil for Construction Hot rolling carbon steel as raw materials, continuous hot galvanizing Construction 750Mm Zinc Coating Spangle Hot Dipped Galvanized Steel Coils 0 Main specification: Width:750 mmto 1250mm Thickness: 0.15 mm to 2.5mm Zinc coating: Z10 to Z27 (60g/m2 to 275g/m2, double sides) Surface condition: Regular spangle/zero spangle/mini spangle Annual production: 100, 000 MT/year Product Name 750 mm Spangle Zinc Coating Hot Dipped Galvanized Steel Coils Thickness 0.15 mm to 2.5mm Width 750 mmto 1250mm Payment term T/T,L/C Delivery time 45 days Grade Q195, Q195L, Q215, Q235, SPHC, SPHD, 08AL, SS300, SS400 MOQ 25 TONS Types sheet & coil & strip Surface normal spangle, big spangle, small spangle, zero spangle Zinc coating 60g-275g Output/Month 10000tons Weight/coil 3-8ton Application:Construction:roof for steel structure workshop,airport,storeroom Photos for building material Construction 750Mm Zinc Coating Spangle Hot Dipped Galvanized Steel Coils 1 Construction 750Mm Zinc Coating Spangle Hot Dipped Galvanized Steel Coils 2 Photos for Container Plate Construction 750Mm Zinc Coating Spangle Hot Dipped Galvanized Steel Coils 3

Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal WHATSAPP No: +254 777 416 710

Minimum Order: 100

Used Steel Rail R50 R59 R60 R65 rail steel Used Rails R50 - R65 Rail track rail steel Used Rails R50 - R65 Rail track rail steel Used Rails R50 - R65 Rail track WHATSAPP No: +254 777 416 710

Minimum Order: 2000

Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal Heavy Metal Scrap Hms 1 2 80:20 Scrap Metal WHATSAPP No: +254 777 416 710

Minimum Order: 1000

Used Steel Rail R50 R59 R60 R65 rail steel Used Rails R50 - R65 Rail track rail steel Used Rails R50 - R65 Rail track rail steel Used Rails R50 - R65 Rail track WHATSAPP No: +254 777 416 710

Minimum Order: 2000

PRODUCT DESCRIPTION Filming Galvanized Steel Coil With 508mm Diameter For Outside Walls Quick Details Standard:ASTM,BS,DIN,JIS, EN Grade:SGCC Thickness:0.15-4.0mm Place of Origin:China (Mainland) Brand Name: Sincere Model Number:SGCC Type:Steel Coil Technique:Cold Rolled Surface Treatment:Galvanized Application:Construction & Base Metal Width:600-1500mm Length:Steel Coil Description:Galvanized Steel Coil Base Metal:SPCC Available Dipped Layers:50-275g/m2 Inner Diameter:508-610mm Available Surface Treatment:Passivating & Oiling & AFP & Filming HS Code:72104900 Approved Certificate:CE & SGS Specifications Galvanized Steel Coil 1.ISO9001 approved 2.High adhesivenees and preciseness 3.Excellent mechanical property The Protection Principle 1. Anodic reaction: Zn-2e=Zn2+ (The alloy coating loses electron, sacrificing itself in dissolution.) 2. Cathodic reaction: Fe2++2e=Fe (Fe gains electron reaction, being protected) About us Our main products are steel products, such as Galvanized Steel Coil , Hot Dip Galvanized Steel Coil,Hot Dip Galvanized Steel Strip,Hot Dipped Galvanized Steel,Galvalume Steel Coils,Aluzinc Steel Coils,Cold Rolled Steel Coils,Cold Rolled Steel Sheets,ERW Steel Pipes,Stainless Steel Seamless Pipes,Prepainted Steel Coils,Welded Steel Pipes.We would be glad to welcome your enquries and will give you very fast feedback. Specification 1. Thickness: 0.15-4.0mm 2. Width: 600-1500mm 3. Inner Diameter: 508mm 4. Weight of Steel Coil: 3-18MT 5. Coating Type: Pure Zinc 6. Available Dipped Layer: 50-275g/m2 7. Surface Finish Structure: Zero Spangle & Finishing Small Spangle & Regular Spangle 8. Available Surface Treatment: Passivating & Oiling & AFP & Filming Mechanical Properties Grades Mechanical Property Coating Adhesion Yield StrengthMPa Tensile StrengthMPa Elongation% ≥ B , ending Center Diameter at Following Coating Weight (g/m²) (a=Plate Thickness) La=80mm b=20(mm) At Following nominal Thickness ( mm) ≤0.7 >0.7 ≤140/140 , >140/140-175/175 >175/175 , SGCC SGHC 140-350 270-500 20 22 0a 1a 2a SGCD1 140-300 270-420 24 26 0a 1a 2a SGCD2 SGCD3 140-260 270-380 28 < , br>30 0a 1a 2a Application 1. Architecture Roofs and outside walls of civilian and industrial buildings, garage doors, fencings and window blinds 2. Appliances Industry Outer clad sheets for washing machine, refrigerator, television, air conditioner and ventilation system, explosion-proof strip, solar water heater and appliance parts 3. Auto Industry Muffler, heat shields of exhaust pipe and catalytic converter, auto parts & accessories under the frame, signboard in highway 4. Industrial Instruments Electric control cabinet, industrial refrigeration equipment, automatic vending machine Superiority 1. Good Resistance to Corrosion 2. Qualified Processing Machinability 3. High Thermal Resistance 4. Excellent Reflectivity 5. Inexpensive and effective enough 6. Can be recycled and reused multiple times

The quality requirements of fine grade galvanized sheet include specification size, surface, galvanized amount, chemical composition, plate shape, machine function and packaging. 1. packing It is divided into two kinds: galvanized sheet cut into fixed length and galvanized sheet packing with coil. General iron sheet packaging, lined with moisture-proof paper, outside with iron waist tie, tie firmly, to prevent the internal galvanized sheet friction. 2. Specification and size The product dimensions (such as the following and) are listed in the galvanized sheet to promote the scale thickness, length and width and allowable faults. In addition, the width and length of the board, the width of the volume can also be determined by user request. 3. surface General situation: Because of the difference in the treatment method of galvanized plate in the plating process, the general situation is also different, such as ordinary zinc flowers, fine zinc flowers, flat zinc flowers, zinc flowers and phosphating disposal situation. Galvanized sheet and galvanized coil cut to a fixed length shall not have defects affecting the use, but the coil is allowed to have welding parts and other less deformed parts. 4. Galvanizing amount Galvanizing measure value: Measuring galvanizing measure is a widely adopted method to determine the thickness of zinc layer in galvanized sheet. There are two kinds of galvanized quantity the same on both sides (equal thickness galvanized) and zinc quantity on both sides (difference galvanized). Galvanized units are g/m2. 5. Machine function (1) Tensile test: Generally speaking, as long as the layout, tensile and deep tensile galvanized sheet with tensile function requirements. (2) Bending experiment: it is an important item to weigh the process function of thin plate. But the world to all kinds of galvanized sheet requirements are not the same. Generally, after the galvanized sheet is bent 180o, the outer coating shall not have the zinc layer to leave, and the substrate shall not have cracking and fracture. 6. Chemical composition The requirements for the chemical composition of galvanized substrate vary from country to country. If Japan has such a requirement, the United States does not. Generally do not do product inspection. 7. Plate shape There are two goals to weigh plate shape black and white, namely flatness and sickle bend. The flatness of the plate and the maximum allowable value of the sickle bend scale must be defined.

Minimum Order: 1 bags

PRODUCT DESCRIPTION 0.25-1.0mm SPCC SGCC Dx51d Grade Color Coated Steel CoilPPGI Color Coated Prepainted Galvanized Steel Coil Price Product description: PPGI PPGL (prepainted galvanized steel prepainted galvalume steel) also known as pre-coated steel or color coated steel coil, It is a product made of hot-dip galvanized steel sheet, hot-dip galvalume steel sheet, electro galvanized steel sheet, etc. After surface pretreatment, one or several layers of organic coating are applied on the surface, and then baked and solidified. The color coated steel coil is light in weight, beautiful in appearance, and has good anti-corrosion performance, and can be directly processed. The color is generally divided into gray, sea blue, brick red, etc. It is mainly used in advertising, construction, decoration, home appliances, electrical appliances, Furniture industry and transportation industry. Product advantage Corrosion resistance The color coated steel coil is light in weight, beautiful in appearance, and has good anti-corrosion performance, and can be directly processed. Strong The firmness is incomparable, and the color is changeable Bright and easy to maintain Its bright and easy to maintain surface makes it a simple choice for applications that require attractive surfaces at all times Product parameter : Commdity: GI,GL,PPGI, PPGL coils Grade: DX51D,SGCC,CGCC Width: 60 , 0--1250MM Zinc coating: Z30g-275g/m2 Surface treatment: oiling/passivation or chromium free passivation/skin pass Surface strctuce: zero spangle/regurlar spangle Package: properly packed for ocean freight exportation in 20''containers Type of coating color coated ID coil 508/610mm Coil weight 3-5MT per coil Price terms FOB,CFR,CIF Payment terms 30%TT+70%TT Thickness 0.12mm-1.2mm Terms of price FOB, CIF,CFR,EXW. SPCC SGCC Dx51d Galvanized Steel PPGI Coil 0.25mm-1.0mm Thickness 0 Surface: SPCC SGCC Dx51d Galvanized Steel PPGI Coil 0.25mm-1.0mm Thickness 1 Application: 1, furniture industry, refrigerator, air conditioner, electronic stove, washing machine shell, oil furnace, etc.; 2, transportation industry, car ceiling, backplane, coaming, car shell, tractor, ship compartment board, etc. Among these uses, the use of more or steel structure plant, composite plate plant, color steel tile factory. SPCC SGCC Dx51d Galvanized Steel PPGI Coil 0.25mm-1.0mm Thickness 2 FAQ: Q:Do you make customized products based on our design drawings or ideas? A:Yes, we are a professional metal fabrication factory with an experienced engineering team to make custom products according to clients’ drawings and ideas. Q: What is the MOQ? A: Usually we don’t set MOQ, but the more, the cheaper. Besides, we are happy to make prototype or sample for clients to ensure quality standard. Q: Do you handle powder coating yourself? A: Yes, we are a professional sheet metal fabrication factory providing full set of manufacturing service including laser cutting,NCT punching, bending, welding(TIG, CO2 arc welding), grinding, belt polishing, powder coating & paint coating,silkscreen. Q: Could you help us with warehousing? A: Sure, we have plenty of space in factory and we are glad to make full use of it by warehousing products for clients even for one year.

Micro Alloy Steel Chrome Piston Rod Chrome Plating With High Strength Detailed Product Description 1. Material: CK45, ST52, 20MnV6, 42CrMo4, 40Cr, HY4520, HY4700 2. ISO9001:2008 3. Yield strength: Not less than 355 MPa 4. Tensile strength: Not less than 610 MPa 5. Completed manufactured equipments, Advanced inspection apparatus 6. Application: Mining machinery industry, textile / printing industry and so on Detailed Description 1. CHEMICAL COMPOSITION(%) Material C% Mn% Si% S% P% V% Ni Cr%< , br> Mo Cu ck45 0.42-0.50 0.50-0.80 0.17-0.37 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25 ST52 ≤0.22 , ≤1.6 ≤0.55 ≤0.04 ≤0.0 , 4 0.02-0.15 20MnV6 0.17-0.24 1.30-1.70 0.10-0.50 ≤0.035 0.035 0.10-0.20 ≤0.30 ≤0.30 ≤0.30 42CrMo 0.38-0.45 , 0.5-0.8 0.17-0.37 ≤0.035 ≤0.035 0.07-0.12 ≤0.03 , 0.90-1.20 0.15-0.25 ≤0.03 4 , 0Cr 0.37-0.45 0.50-0.80 0.17- , 0.37 ≤0.035 ≤0.035 ≤0.3 0.80-1.1 ≤0.03 HY4700 0.38-0.45 , 1.20 ~1.60 0.30~0.50 ≤0.035 ≤0 , .020 0.05～0.15 ≤0.25 0.10 , ～0.20 ≤0.15 0.25 HY4520 0.40 ~0.48 0.80 ~1.40 0.15 ~0.35 ≤0.035 ≤0.035 ≤0. , 15 ≤0.25 ≤0.25 ≤0.15 ≤0.25 2. MECHANICAL PROPERTIES Material T.S / Rm(MPa) Y.S / Rel(MPa) A% CHARPY CONDITION ck45 610 35 , 5 16 >41J Normalized ck45 800 540 20 >41J Q+T ST52 500 355 22 Normalized 20MnV6 750 590 , 12 >40J Normalized 42CrMo4 980 850 14 >47J Q+T 40Cr 1000 800 10 Q+T 3. MICRO ALLOY STEEL Material MECHANICAL PROPERTIES Surface hardness(HBW) Rm(MPa) Rel(MPa) A% Z% KU2(J) HY4700 Φ35 - Φ100 900 - 1100 ≥650 ≥16 ≥35 ≥39 270-340 ＞Φ100 - Φ140 850 - 950 ≥600 ≥16 ≥35 ≥39 270-340 HY4520 Φ40 - Φ100 750 - 900 ≥520 ≥19 ≥40 ≥39 230-290 ＞Φ100～Φ140 < , br>750 - 900 ≥520 ≥17 ≥35 ≥39 230-290 4. SUPPLY CONDITION Ground and chrome plated 5. CHROME THICKNESS 20 to 30 micron 6. SURFACE ROUGHNESS Ra≤0.2 micron and Rt≤2 micron 7. TOLERANCES ON DIA ISO f7 on the diameter 8.OVALITY Half of the tolerance ISO f7 9. STRAIGHTNESS ≤0.2MM/M 10 .SURFACE HARDNESS 850-1150HV (vickers 100g) 11. COHESION No craks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling in water) 12. CORROSION RESISTANCE Test in natural salt spray according to ASTM B 117-120hours Results evaluation according to ISO 4540 RATING 7-10 13 .POROSITY Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10 14. WELDABILITY Good 15. PACKING Anti rust oil to be applied on material and each rod to be packed in paper sleeve 16. CERTIFICATE All certificate related with material heat treatment and plating is required Meeting clients' requirements is our forever goal. Benefit mutually and go forward hand in hand. Micro Alloy Steel Chrome Piston Rod Chrome Plating With High Strength 0

Boiler pressure vessel steel sheet is mainly used to manufacture superheater, main steam pipe and boiler fire chamber heating surface used in hot rolled medium thick plate material. Boiler steel plate is one of the very key materials in boiler manufacturing, mainly refers to the hot rolled special carbon steel and low alloy heat resistant steel medium thick steel material used to manufacture boiler shell, pot drum, box end cover, hanger and other important parts.It includes carbon steel, carbon manganese steel, microalloy steel, low alloy high strength steel and low temperature steel. Operating temperature is generally -20℃ to 500℃, individual up to 560℃. These are mainly 16MnR steel (16 manganese capacity low alloy steel, a type of steel), which is used in the manufacture of ASME code pressure vessels. 16MnDR is a kind of steel plate for cryogenic pressure vessel. 16Mn -- indicates that manganese content in steel plate is about 0.16%, D- indicates low temperature, R- indicates pressure vessel. (Usually, steel with a high content of a certain chemical element needs to be marked in the material, for example, 1.6% manganese is written as 16Mn, 16MnDR is used for -40 degree pressure vessel steel plate.

Minimum Order: 1 bags

Carbon Steel 1. Good Wear Resistance After heat treatment, hot rolled steel coil will have high hardness and good wear resistance. 2. Good Machinability The Hardness of the hot rolled steel coil in annealed state is moderate and it has good machinability. 3. Good Molding and Easy Welding The Hot Rolled Steel Coil has excellent processing technology, good molding and easy welding. 4. Low Friction Low dissipation factor,lower operating costs.

Minimum Order: 1 bags