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).

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. Exnt 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.

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.tovoltaic 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 !