Name: DX53D/SGCD2/SGCD3 Galvanized Sheet
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DX53D/SGCD2/SGCD3 Galvanized Sheet

Hot-dip galvanized steel sheet. 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;
Electro-galvanized steel sheet. This galvanized steel sheet made by electroplating has good processability. But the coating is thin and the corrosion resistance is not as good as hot-dip galvanized sheet;

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◉ Product Description

Electro-galvanized steel sheet. This galvanized steel sheet made by electroplating has good processability. But the coating is thin and the corrosion resistance is not as good as hot-dip galvanized sheet;

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

Product Parameters

Product Name	Hot Dip Galvanized Sheet
Thickness	0.12mm-6.00mm
Width	600mm-1500mm
Length	1m-12m, Support Customization
Standard	AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Zinc Layer	40-400g/m²

Chemical Composition

Standard	Grade	C	Si	Mn	P	S	Ti
Forcold FormingChinese Standard	DX51D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX52D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX53D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX54D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX56D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX57D+Z	0.12	0.50	0.60	0.100	0.045	0.30
Forcold FormingJapanese Standard	SGCC	0.15	0.50	0.80	0.050	0.030	0.025
	SGCD1SGCD2	0.120.10	0.500.50	0.600.45	0.0400.030	0.0300.030	0.0250.025
	SGCD3	0.08	0.50	0.45	0.030	0.030	0.025
	SGCD4	0.06	0.50	0.45	0.030	0.030	0.025
For StructureJapanese Standard	SGC340	0.25	0.50	1.70	0.200	0.035	0.025
	SGC400SGC440	0.250.25	0.500.50	1.702.00	0.2000.200	0.0350.035	0.1500.150
	SGC490	0.30	0.50	2.00	0.200	0.035	0.025
	SGC510	0.30	0.50	2.50	0.200	0.035	0.025
For StructureAISI Standard	S220GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S250GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S280GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S320GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S350GD+Z	0.20	0.60	0.70	0.100	0.045	0.150
	S550GD+Z	0.20	0.60	0.70	0.100	0.045	0.150

Mechanical Properties

Grade	Yield Strength MPa≥	Tensile Strength MPa≥	Elongation A%≥
DX51D Z/ZM/AZ/AM	240-380	270-500	22
DX52D Z/ZM/AZ/AM	140-300	270-420	26
DX53D Z/ZM/AZ/AM	140-260	270-380	30
DX54D Z/ZM/AZ/AM	120-220	260-350	36
S220GD Z/ZM/AM	220	300	20
S250GD Z/ZM/AZ/AM	250	330	19
S280GD Z/ZM/AM	280	360	18
S300GD A/AM	300	380	18
S320GD Z/ZM/AM	320	390	17
S350GD Z/ZM/AZ/AM	350	420	16
S450GD A/AM	450	480	15
S550GD Z/ZM/AZ/AM	550	550	-

Use of The Environment	Recommended Zinc Thickness
Indoor Use	Z40 or Z120 (40g/㎡or 120g/㎡)
Suburbs	Z200 and Painting (200g/㎡)
Urban or Industrial Area	Z275 (275g/㎡) or G90 (US Standard) and painted
Coastal Area	Thicker than Z275 (275g/㎡) or G90 (US Standard) and painted
Punch or Deep Drawing Application	Thicker than Z275 (275grams/㎡) or G90 (US Standard) avoid coating peeling after stamping

Surface Treatment Type	Code	Features
Chromic Acid Treatment	C	Good corrosion resistance, suitable for bare state
Chromic Acid Treatment+Oiling	S	Good corrosion resistance
Phosphoric Acid Treatment (Including Sealing Treatment)	P	Have a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Including Sealing Treatment)+Oiling	Q	Has a certain corrosion resistance, good paint performance, prevent rust during transportation and storage
Phosphoric Acid Treatment (Excluding Sealing Treatment)	T	Have a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Excluding Sealing Treatment)+Oiling	V	Has a certain corrosion resistance, good paint performance, and prevent rust
Oiling	O	Prevent rust during transportation and storage
No Treatment	M	Suitable for immediate painting

Material Comparison

Chinese Standard	Japan Standard	European Standard
DX51D Z/DC51D Z (CR)	SGCC	DX51D Z
DX52D Z/DC52D Z	SGCD1	DX52D With
DX53D Z/DC53D Z/DX54D Z/DC54D Z	SGCD2/SGCD3	DX53D Z/DX54D Z
S220/250/280/320/350/550GD Z	SGC340/400/440/490/570	S220/250/280/320/350GD Z
DX51D Z/DD51D Z (HR)	SGHC	DX51D Z

◉ Factory Display

◉ Packing & Delivery

◉ FAQ

Q1：What metal materials do you supply?
A：We supply one-stop full range of metal materials: pure copper & brass, carbon steel, hot-dip galvanized steel, PPGI/PPGL color coated steel, 201/304/316 stainless steel, high temperature alloy, industrial aluminum profiles and various structural profiles. Sheets, coils, tubes, bars are all available for infrastructure, new energy, machinery, chemical and electrical industries.

Q2：Can you customize material grades, thickness and sizes?
A：Customization is available. For stainless steel, copper, aluminum, galvanized & color coated steel, thickness, width and length can be adjusted per ASTM & EN standards. Profiles can be cut to fixed length or custom moulded according to drawings. Special alloy materials can be ordered from steel mills.

Q3：What’s the difference between galvanized steel and color coated PPGI?
A：Galvanized steel only has zinc coating for basic anti-rust with lower cost, suitable for brackets, guardrails and load-bearing structures. PPGI is galvanized base with colored paint layer, anti-rust & decorative, widely used for factory roof/wall panels and equipment housings. Thick galvanized steel for rainy coastal areas, PPGI for decorative outdoor projects.

Q4：Do you have spot inventory? What’s your MOQ?
A：We own 10,000 tons standardized warehouse with spot carbon steel, stainless steel, galvanized, copper and aluminum materials. MOQ is 1 ton for standard sizes; small samples of dozens of kilograms are acceptable. No upper limit for bulk engineering orders, mixed container loading with multiple metals is supported.

Q5：How long is the delivery time for spot goods & customized goods?
A：Spot goods can be loaded within 3-7 days; simple cutting processing orders take 7-10 days; mould opening & special alloy customization takes 15-30 days, subject to specific specifications.

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