ASTM 755 Hot Galvanized Steel Coil For Corrugated Steel Sheet
Standard: AISI,ASTM
Reference standard: ASTM 755
0ther containing standards :JIS G3312, IS 14236, ECCA
Strip thickness mm :0.20 to 1.2 0
Strip widths mm : 900 to 1250
Substrate material :Zinc coating as per ASTM A 653/A 653M with steel base as per ASTM std
Substrate Coating mass gms/m2,Substrate coating mass class: 80 to 275 Z120; Z150; Z180 and Z275 as per ASTM std Or As mutually agreed Grade designation Gr 50/ Gr 80/CS type A, B as per ASTM std Yield strength Mpa min
Tensile strength Mpa min: 340 for Gr 50 & 550 for Gr 80 410 for Gr 50 & 570 for Gr 80
Paint type : Regular Polyester/Silicon Polyester/PVDF
Paint coating thickness (DFT)
Back coat 5 to 8 (including primer)
Digital DFT meter accuracy
Accuracy +/- 2% of reading) as per ASTM A 153
Pencil hardness
H or Harder Gloss 15-80% at 60 degrees ASTM D 523 Resistance to chalking QUV
ASTM D 53: 1000 HRS –rating ≤4 for PVDF, 750 HRS –rating ≤4 for others
Resistance to corrosion ASTM B 117)
500 HRS with blister density ≤2, creepage ≤2 mm.
Resistance to Humidity: 1000 HRS blister density ≤ 2 (ASTM D 2247)
Resistance to color change QUV- ASTM G 53
2000 HRS (delta E ≤ 5 unit) for PVDF
1000 HRS (delta E ≤ 5 unit) for others
Flexibility
4 T- (ECCA) – no cracking
Resistance to abrasion
≤20 mg as per 100 cycles
Specifications
Galvanized GI Coils in 1220 & many other sizes & in thickness
Slitting Facility is also available
we are bulk stokiest of GI COILS from 0.3mm to 4mm we have we also have PPPGI coils
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Applications:
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Construction, building, roofing, pressing, bending, ventilating duct, handrail and partition panel
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Further processing: coating base plate
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Electric appliance: refrigerator, washing machine, recorder or microwave
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ASTM 755 Hot Galvanized Steel Coil For Corrugated Steel Sheet Images
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