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Structure of BMP Z21 PPGI Rolled Steel Coil for Roofing Constrution
Description of BMP Z21 PPGI Rolled Steel Coil for Roofing Constrution
Cold rolled steel coil is steel that has been worked below its recrystallization temperature by passing it between a pair of rollers. Recrystallization temperature is the temperature at which grains in the lattice structure of the metal have been rearranged, leaving it free of strain and deformations. Cold rolled steel coil is pre-treated before being cold rolled with a process known as pickling, which uses strong acids to remove scale and other impurities. The cold rolled steel coil is then passed through rollers to reduce its thickness. Most cold rolling takes place in multiple passes and as the size of the cold rolled steel coil is further reduced, its strength and hardness both increase, but its ductility decreases. After cold rolling, heating the metal up in a process known as annealing can restore some of its ductility. The final cold rolled steel coil may be manufactured in the form of sheets, strips, bars, or other forms.
Main Feature of BMP Z21 PPGI Rolled Steel Coil for Roofing Constrution
The construction industry: The roof structure, keel, grill, Clapboard, ceilings, fire shutter doors, etc; The light industry, the Automobile, agriculture, animal husbandry, fishery, casing of household Electronic application, civilian smoke stack, etc.
Applications of BMP Z21 PPGI Rolled Steel Coil for Roofing Constrution
1. Base metal for coated and dipped products.
2. Home appliance
3. Precise welding tube
4. Flux cored welding wire
5. Bicycle, battery shell,
6. Automobile fitting, hardware
7. Enameling industry etc.
Specifications of BMP Z21 PPGI Rolled Steel Coil for Roofing Constrution
ASTM A653, JIS G3302, GB/T3830-2006
SGCC, DX51D, A653, SGCH, Q235B
Galvanized steel coils, Alumzinc steel coils, color coated steel coils
Standard seaworthy export packing: 3 layers of packing, inside is kraft paper, water plastic film is in the middle and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve.
Within 10-30days after signing contract
FOB& CNF& CIF price
TT or LC, Western Union
1000MT per month
construction, the manufacturing of cars, ships, containers and household electric appliances,other industries usage.
FAQ of BMP Z21 PPGI Rolled Steel Coil for Roofing Constrution
We have organized several common questions for our clients，may help you sincerely：
1.Do you have QC teams?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.
2.Are the products tested before shipping?
Yes, all of our PPGI and GI was qualified before shipping. We test every batch every day.
3.What's your normal delivery time?
Our delivery time about 15-20days for standard sizes, if you have other requirements like hardness, quanity and width ,it is about 20-40days. But don't worry ,we also try our best for the delivery time ,because time longer and our cost is higher.
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