Astm A755m Prepainted GI Steel Material Coil For Roofing Sheet

Astm A755m Prepainted Galvanized Steel Coil List Building Materials Galvanized Steel Coil for roofing sheet  How is GI material made? Galvanized steel products are made by cleansing and heat-treating rolled coils before dipping them into a bath of molten zinc. Through this process, the coils are plated with zinc only (GI), zinc and iron (GA) or zinc, aluminum and magnesium (PosMAC). Item Hot Dipped Galvanized Round Steel Pipe/GI Pipe/Galvanised Tube OD 20~405mm in theory Thickness 1.2~15.7mm Length Any Length Below 16 Meter Standard GB,ASTM,BS,EN,JIS Material ASTM, Grade B,Grade C,Grade D,Grade 50 Zinc Coating 30-275g/m2 Application Used For Water, Gas, Stream, Combustible Fluids And Other Liquid Delivery Ends Plain, Beveled, Thread With Couplings Or Sockets; Plastic Caps And Steel Rings Can Be Provided If Possible Surface Bared, Galvanized, Oiled, Color Paint, 3PE; Or Other Anti-corrosive Treatment Technique Hot Rolled Or Cold Rolled ERW Package Covered With Tarpaulin, Containers Or In Bulk Payment Terms TT30% Deposit, balance after BL copy in 21 days, or LC at sight Product Chemical Composition & Mechanical Properties : Grade Chemical Composition Mechanical Properties C Mn Si S P Yield Tensile Elongati Strength Mpa Strenth Mpa -on % Q195 0.06-0.12 0.25-0.50 ≤0.30 ≤0.045 ≤0.05 ≥195 315-430 ≥33 Q215 0.09-0.15 0.25-0.55 ≤0.30 ≤0.05 ≤0.045 ≥215 335-450 ≥27 Q235 0.12-0.20 0.30-0.67 ≤0.30 ≤0.045 ≤0.04 ≥235 375-500 ≥26 Q345 ≤0.20 1.00-1.60 ≤0.55 ≤0.04 ≤0.04 ≥345 470-630 ≥22 Advantages of steel plank: 1. durable & stable 2. good bearing capacity 3. low cost, high quality 4. Excellent security function 5. easy to assemble & dismantle 6. long durability, the working life can up to 5-8 years 7. Corrode-resistant, Slip prevention, Anti-fire, Anti-sand, less weight Application of Galvanized Steel Pipe: 1.Galvanized Steel Pipe which is convenient for workers to walk on high building. 2.The galvanized surface makes Steel Pipe more stronger in the rainy days and most environment. 3. Various size of Galvanized Steel Pipe could be customed. 3.Product standard test: Q195 ≈ Grade B,SS330 SPHC,S185 Q215 ≈ Grade C/CS Type B,SS330 SPHC Q235 ≈ Grade D,SS400,S235 Q345 ≈ Grade 50/345,SPFC590,E/S335 All items of our products and related tests as follow : 1. ERW black round pipe (ASTM A53,GB..) 2. Weld black square/rectangular pipe(ASTM A500,GB,...) 3. Hot dip galvanized round pipe (BS 1387,ASTM A53,GB ,...) 4. Hot dip galvanized square/rectangular pipe(ASTM A500,GB...) 5. Pre-galvanized square/rectangular/round pipe,cold rolled black annealed or bright finished pipe. 6. Spiral steel pipe 7. Seamless pipe (ASTM A53,A106B,) 8. Oval pipe in galvanized and black surface 9. LTZ... special sizes pipe 10. Steel prop , steel plank,steel scaffolding pipe and accessories... steel constrctution material 11. Steel angle, Flat bar,round bar,sqaure bar, 12. H,I,U,C,T,Y,W...steel beam/channel 13. Deformed steel bar 14. Hot rolled& cold rolled steel sheet/coil in black,galvanized,color coated surface. Field of use and application: The purpose of the square tube is construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power support, steel structure engineering, electric power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, high-speed road railing, Building construction, pressure vessels, oil storage tanks, bridges, power station equipment, lifting transport machinery and other high-load welded structural parts.Basic building,Greenhouse construction,High speed fence.Photovoltaic stent,Sports Equipment,ect. Produce Process: Packing and Delivery: 1).20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 2).40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 3).40ft HC:12032mm(Lengh)x2352mm(Width)x2698mm(High) Customer Visit: With Concept of "Keep Improving,Win-win Cooperation",and executed by reliable quality and after sales service system,Kunda gained good reputation from customers at home and abroad.We sincerely welcome you come to our company negotiate business and make great achievement together !