Galvalume Steel Coil Description
SGCC, , SGCD, DX51D, ASTMA792
The plating coat of Aluminium-zinc armor plate is Zn-Al alloy, and its composition is 55%, 43.5% Zn and 1.5%Si. The plate is of smooth surface and excellent corrosion resistance of the atmosphere, which is 2-6 times higher than hot dipped galvanized sheet of the same thickness pf plating coat.
After through 3 processes, including payoff reel, crop shear and welding, enter into the continious annealing furnace. During the annealing process, stripes are heated closer to the recrystallizing temperature, and then heated to 20~50 above the recrystallizing temperature in the reducing furnace. After keeping the same temperature for 170s, stripes are naturally cooled to the normal temperature in the slow cooling process.
Afterward, stripes enter in to the AN-AL pot through the elephant's trunk and begin in the hot DIP coating process. The optimum temperature range of the plating coat is 630-660. Coated with aluminium-zinc alloy, stripes enter into the cooling tower by the steady roll and air knife.
After fast cooled with wind or water, they are directly produced into Al-zn armor plates. The general rate of cooling is 30/s or so, and stripes are cooled to about 60.
Specification:
Production Grade: SGLCC, SGLCD
Thickness: 0.18mm-2.5mm
Width: 914MM, 1000MM, 1200MM, 1250MM mainly
Coating type: 55% Al 43.5%Zn AND 1.5% Si
Coating Thickness(both side, g/sqm): 50-150
Surface Finish: Regular Spangle, Small Spangle
Surface Treatment: Oiled or Anti0finger print
Inside diameters: 508mm
Outside diameters: As per customers' requirement
Packing condition: Seaworthy
Packing weight( without pallet): 25Kgs
Packing weight( with pallet): 55kgs
Application: Roofing steel/workshop material/Buling materials
Packaging
GL Show
| Specifications: |
|
|
| Standard |
EN 10327 |
DX51D+AZ, DX52D+AZ, DX53D+AZ, |
| EN 10326 |
SS250GD+AZ, SS350GD+AZ |
| JIS G3321 |
SGLCC, SGLCD, SGLCDD, SGLC 400 |
| ASTM A792M |
CS type C, CS type B, DS, SS255, SS345 |
| Base Metal |
Cold rolled steel coils |
| Thickness |
0.22mm-2.0mm |
| Width |
700mm-1300mm |
| Coil ID |
508mm, 610mm |
| Zinc coating |
60g/m2-180g/m2 |
| Surface treating |
chromium free passivation, chromium passivation, fingerprint resistant, oiled |
| Spangle types |
regular spangle |
| Applications: |
|
| Applications: |
|
| Architecture |
Roofs and outside walls of civilian and industrial buildings, garage doors, fencings and window blinds |
| Appliances Industry |
Outer clad sheets for washing machine, refrigerator, television, air conditioner and ventilation system, explosion-proof strip, solar water heater and appliance parts |
|
| Auto Industry |
Muffler, heat shields of exhaust pipe and catalytic converter, auto parts & accessories under the frame, signboard in highway. |
| Industrial Instruments |
Electric control cabinet, industrial refrigeration equipment, automatic vending machine |
|
Audited Supplier 
){kind=link}