Hot Dipped Astm A653 Z275 Z120 Zinc Coated Galvanized Steel Iron Coil
How are galvanized coils made?
GALVANIZED STEEL (GI) Hot Dip Galvanized Steel Coil is produced by passing Cold Rolled Steel Coil through a Molten bath of Zinc at temperatures of around 460 degrees Celsius. The Zinc coating on the steel coil substrate acts as a barrier between the atmosphere and the surface of the metal.
Thick | 0.12 ~6.0 mm |
Width | 600-1500 mm |
Zinc Coating | 30~275G/M2 |
Coil ID | 508 / 610MM |
Coil Weight | 3-5 Tons |
Standard | ASTM-A653; JIS G3302; EN10147; EN10326etc |
Payment Terms | T/T, LC,DP. |
Regular Order | 25 tons or one container, for less quantity, to contact with us for details |
Hardness | Soft hard(HRB60),medium hard(HRB60-85),full hard(HRB85-95) |
Surface Structure | Regular spangle,Minimum spangle, Zero spangle, Big spangle |
Surface Treatment | Chromated/Non-Chromated, Oiled/Non-oiled, Skin pass |
Different Surface:Small,Large,Zero.Select as per your requirement
Content | |||
Material: | SG550/SG280/SG350DX51D+Z | SGCC/ CS TYPE | |
Finish | NBMinimized Spangle (M) | ||
Surface Treatment | Chemically Passivated (C) | ||
Oil | Not Oiled | ||
Zinc | Z30--275 | ||
Thickness tolerances | Normal thickness tolerances | 0.40 < thickness ≤ 0.60 | ± 0.060 |
0.60 < thickness ≤ 0.80 | ± 0.070 | ||
0.80 < thickness ≤ 1.00 | ± 0.080 | ||
1.00 < thickness ≤ 1.20 | |||
Width tolerances | 1200 < width ≤ 1500 | 6 ~ 0 |
Chemical composition
Designation | Chemical composition % by mass max. | ||||||
Steel grade | C | Si | Mn | P | S | TI | |
Steel name | Symbols for the types of available coatings | ||||||
DX51D | +Z | 0.18 | 0.5 | 1.2 | 0.12 | 0.045 | 0.3 |