Hot-Dipped Galvanized steel Coil

Hot-dipped galvanized steel is made from steel plate, which is dipped into the dissolved zinc bath, with a zinc layer on the surface. It mainly adopts the continuous galvanizing production process. That means the cold rolled coils are put into the dissolved zinc bath for continuous galvanizing process.

Description

Coating gauges:

Coating designationCoating thickness (oz/ft²)Coating thickness (g/m²)
G400.4120
G600.6180
G900.9275
G1151.15350

Zinc Coating (Both Sides)ASTM A653ASTM A653 - Single SpotEN 10142EN 10142 - Single SpotJIS G 3302JIS G 3302 - Single Spot
Zn Coating Mass(gm)Triple Spot TestSingle Spot TestTriple Spot TestSingle Spot TestTriple Spot TestSingle Spot Test
909075----
100--1008510085
12012090--120102
140--140120--
180180150--180153
200--200170200170
275275235275235275234
350300300350300350298

Chemical Properties:

Steel designationMaximum percentage of element by massC%Mn%P%S%Cu%Ni%Cr%Mo%
ElementC%Mn%P%S%Cu%Ni%Cr%Mo%
Commercial quality (CQ)0.100.600.030.0350.200.200.150.06

Mechanical properties:

Mechanical Properties ASTM A 653Yield StrengthTensile Strength% Elongation (Minimum)
Product DesignationMPaMPaAll Thickness
CS Type A(170 – 380)->20
CS Type B(205 – 380)->20
CS Type C(170 – 410)->20

Mechanical Properties JIS G 3302Yield StrengthTensile Strength% Elongation (Minimum) 0.40 – 0.60% Elongation (Minimum) 0.60 – 1.00% Elongation (Minimum) 1.00 – 1.50% Elongation (Minimum) 0.25 – 0.40
Product DesignationN / mm2N / mm2Nominal ThicknessNominal ThicknessNominal ThicknessNominal Thickness
SGCC------
SGCH------
SGCD1-270 Min-343637
SGC340245 Min340 Min(20)202020
SGC570560 Min570 Min----

Mechanical Properties ASTM EN 10142Yield StrengthTensile Strength% Elongation (Minimum) <0.70 mm% Elongation (Minimum) 0.7mm – 1.5 mm
Product DesignationN / mm2N / mm2Nominal ThicknessNominal Thickness
DX51D-270 – 5002022
DX52D140 – 300270 – 4202426

Bending Test:

Product thickness (mm)Number of bends (mm)
0.30 – 0.808
0.80 – 1.205
1.20 – 2.003

Surface treatment:

TreatmentDescription
Chemical Passivation(C):Normal Chromate Coating
Oiling(O): Protective Anti-rust oil
Surface QualitySkin passed

Additional information

Width

800mm to 1250mm

Thickness

0.3mm to 4.00mm

Grades

SGCC SGCH SGC340 SGHC SGH340 SGH400 DX51D S400GD S500GD S550GD

Coil ID

610mm

Coating Width

100-350g/m2

Surface Finish

Regular Spangle ,Zero Spangle

Surface Treatment

Chromated /oiled(optional)

Coil Weight

4-12Mt

packaging

Domestic supply (G.I): • Rust proof paper, VCI. • Inner and outer rings. • Edge protectors. Export Packaging (G.I): • Rust Proof Paper, VCI. • Cardboard body, edge protectors. • Steel body wraps. • Steel edge protectors (outer). • Steel ring protector (inner).