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S320GD+Z Galvanized Steel Coils

Product Name :S320GD+Z Galvanized Steel Coils

Thickness :0.12mm-3.5mm

Width : 600mm-1500mm

Zinc Layer: 40-400g/m²

Standard : AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.

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Product Details

Product Description:

S320GD+Z Galvanized Steel Coils are engineered for superior strength and corrosion resistance. These coils boast a robust zinc coating that provides excellent protection against rust and atmospheric corrosion, making them suitable for a variety of construction and industrial applications where durability is key. With their balanced mechanical properties, S320GD+Z coils offer reliability and performance in demanding environments.

Galvanized Coil

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

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 (275 grams/㎡) 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

Reliability: We pride ourselves on delivering high-quality products that stand the test of time.Why Choose Us:

Competitive Pricing: We offer our products at competitive prices without compromising on quality.
Customer Service: Our dedicated team is always ready to assist you with any inquiries or support you may need.

Ordering Information:

To place an order or inquire about our 0.20mm thick 1000mm wide Continuous Hot-Dip Galvanized Steel Plate, please contact our sales team. We look forward to being a part of your next successful project.

Production And Shipping:
·-生产3.jpg Galvanized Coil