SGCD3 Galvanized Steel Coil

SGCD3 Galvanized Steel Coil

Galvanized coil, the thin steel sheet is immersed in a molten zinc tank to make a layer of zinc thin steel sheet adhered to its surface.
It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a plating tank with molten zinc to make a galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also made by hot dip method, but after leaving the tank, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.

Product  Description

Galvanized coil, the thin steel sheet is immersed in a molten zinc tank to make a layer of zinc thin steel sheet adhered to its surface.

It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a plating tank with molten zinc to make a galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also made by hot dip method, but after leaving the tank, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.


Full cold galvanizing process:

Chemical degreasing → hot water washing → water washing → electrolytic degreasing → water washing → acid washing → rust removal → water washing → electrogalvanizing process → water washing → passivation → hot water washing → drying → quality inspection → packaging and sales


SGCD3 Galvanized Steel Coil


Product Parameters

Product NameGalvanized Coil
Thickness0.12mm-3.5mm
Width600mm-1500mm
StandardAISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Zinc Layer 40-400g/m²


Chemical Composition

StandardGradeCSiMnPSTi
Forcold FormingChinese StandardDX51D+Z0.120.500.600.1000.0450.30
DX52D+Z0.120.500.600.1000.0450.30
DX53D+Z0.120.500.600.1000.0450.30
DX54D+Z0.120.500.600.1000.0450.30
DX56D+Z0.120.500.600.1000.0450.30
DX57D+Z0.120.500.600.1000.0450.30
Forcold FormingJapanese StandardSGCC0.150.500.800.0500.0300.025
SGCD1SGCD20.120.100.500.500.600.450.0400.0300.0300.0300.0250.025
SGCD30.080.500.450.0300.0300.025
SGCD40.060.500.450.0300.0300.025
For StructureJapanese StandardSGC3400.250.501.700.2000.0350.025
SGC400SGC4400.250.250.500.501.702.000.2000.2000.0350.0350.1500.150
SGC4900.300.502.000.2000.0350.025
SGC5100.300.502.500.2000.0350.025
For StructureAISI StandardS220GD+Z0.200.600.700.1000.0450.025
S250GD+Z0.200.600.700.1000.0450.025
S280GD+Z0.200.600.700.1000.0450.025
S320GD+Z0.200.600.700.1000.0450.025
S350GD+Z0.200.600.700.1000.0450.150
S550GD+Z0.200.600.700.1000.0450.150


Mechanical Properties

GradeYield Strength MPa≥Tensile Strength MPa≥Elongation A%≥
DX51D Z/ZM/AZ/AM240-380270-50022
DX52D Z/ZM/AZ/AM140-300270-42026
DX53D Z/ZM/AZ/AM140-260270-38030
DX54D Z/ZM/AZ/AM120-220260-35036
S220GD Z/ZM/AM22030020
S250GD Z/ZM/AZ/AM25033019
S280GD Z/ZM/AM28036018
S300GD A/AM30038018
S320GD Z/ZM/AM32039017
S350GD Z/ZM/AZ/AM35042016
S450GD A/AM45048015
S550GD Z/ZM/AZ/AM550550-

Use of The EnvironmentRecommended Zinc Thickness
Indoor UseZ40 or Z120(40g/㎡or 120g/㎡)
SuburbsZ200 and Painting (200g/㎡)
Urban or Industrial AreaZ275 (275g/㎡) or G90 (US Standard) and painted
Coastal AreaThicker than Z275 (275g/㎡) or G90 (US Standard) and painted
Punch or Deep Drawing ApplicationThicker than Z275 (275 grams/㎡) or G90 (US Standard) avoid coating peeling after stamping


Surface Treatment TypeCodeFeatures
Chromic Acid TreatmentCGood corrosion resistance, suitable for bare state
Chromic Acid Treatment+OilingSGood corrosion resistance
Phosphoric Acid Treatment (Including Sealing Treatment)PHave a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Including Sealing Treatment)+OilingQHas a certain corrosion resistance, good paint performance, prevent rust during transportation and storage
Phosphoric Acid Treatment (Excluding Sealing Treatment)THave a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Excluding Sealing Treatment)+OilingVHas a certain corrosion resistance, good paint performance, and prevent rust
OilingOPrevent rust during transportation and storage
No TreatmentMSuitable for immediate painting


Galvanized Surface Selection


Zero SpangleMinimized SpangleNormal SpangleLarge Spangle
 SGCD3 Galvanized Steel CoilSGCD3 Galvanized Steel Coil SGCD3 Galvanized Steel Coil SGCD3 Galvanized Steel Coil


Material Comparison

Chinese StandardJapan StandardEuropean Standard
DX51D Z/DC51D Z (CR)SGCCDX51D Z
DX52D Z/DC52D ZSGCD1DX52D With
DX53D Z/DC53D Z/DX54D Z/DC54D ZSGCD2/SGCD3DX53D Z/DX54D Z
S220/250/280/320/350/550GD ZSGC340/400/440/490/570S220/250/280/320/350GD Z
DX51D Z/DD51D Z (HR)SGHCDX51D Z


Professional Showcase · Safe Shipping

In the shipping process, we strictly adhere to standardized operating procedures: we employ customized packaging solutions that are moisture-proof, scratch-proof, and deformation-proof, and each batch of products is reinforced according to international shipping standards. Whether it's full container export or domestic dedicated truck delivery, we achieve end-to-end visualized management from warehousing, packaging, labeling to logistics tracking, ensuring that goods are delivered safely and on time to customers worldwide.

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