DX51D/SGCC Galvanized Sheet
DX51D galvanized sheet is divided into cast zinc alloy and deformed zinc alloy. Commonly used cast zinc alloy is zinc aluminum copper magnesium alloy, its casting process performance is good, cooling speed has less effect on mechanical properties, more used in the manufacture of mechanical parts, toys, decorations, household appliances and so on. Commonly used deformation zinc alloys are zinc aluminum alloy and zinc copper alloy. The former contains 4% to 15% aluminum, in order to improve the strength and hardness of the alloy, but also add a small amount of copper, magnesium and other alloying elements. Its high strength can replace some brass or duralumin manufacturing precision forgings. The latter contains 0.7% to 1.5% copper, copper can increase alloy strength and impact toughness, and reduce plasticity.
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Product Description

Product Description

DX51D galvanized sheet is divided into cast zinc alloy and deformed zinc alloy. Commonly used cast zinc alloy is zinc aluminum copper magnesium alloy, its casting process performance is good, cooling speed has less effect on mechanical properties, more used in the manufacture of mechanical parts, toys, decorations, household appliances and so on. Commonly used deformation zinc alloys are zinc aluminum alloy and zinc copper alloy. The former contains 4% to 15% aluminum, in order to improve the strength and hardness of the alloy, but also add a small amount of copper, magnesium and other alloying elements. Its high strength can replace some brass or duralumin manufacturing precision forgings. The latter contains 0.7% to 1.5% copper, copper can increase alloy strength and impact toughness, and reduce plasticity.

 

Application scope

Galvanizing products are widely used in industry, agriculture, animal husbandry and fishery, energy, transportation, chemical industry, light industry, home appliances, construction, communications, national defense and other fields.

 

Product parameters

Product NameDX51D/SGCC Galvanized Sheet
Thickness0.12mm-6.00mm
Width600mm-1500mm
Length1m-12m, support customization
StandardAISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Zinc layerHot dip galvanizing: 60-275g/m²
Pr-galvanized: 80-275g/m²


Chemical Composition

StandardGradeCSiMnPSTi
For cold forming Chinese standardDX51D+Z0.120.500.600.1000.0450.030
DX52D+Z0.120.500.600.1000.0450.030
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
For cold forming Japanese 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 structure Japanese 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 structure AISI 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 behavior

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/AM140-360270-38030
DX54D+Z/ZM/AZ/AM120-220260-35036
S220GD+Z/ZM/AM22030020
S250GD+Z/ZM/AZ/AM25033019
S280GD+Z/ZM/AM28036018
S300GD+ZM/AM30038018
S320GD+Z/ZM/AM32039017
S350GD+Z/ZM/AZ/AM35042016
S450GD+Z/ZM/AM45048015
S550GD+Z/ZM/AZ/AM550550-

 

 

 

Galvanized surface options

Zero zinc flowerSmall zinc flowerNormal zinc flowerBig zinc flower
 

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Usage environmentRecommended zinc layer thickness
Indoor useZ10 or Z12 (100g/㎡or 120g/㎡)
SuburbsZ20 and painted (200g/㎡)
Urban or industrial areaZ27 (270g/㎡) or G90 (US standard) and painted
Coastal areasThicker than Z27 (270g/㎡) or G90 (US standard) and painted
Stamping or deep drawing applicationsThinner than Z27 (270g/㎡) or G90 (US standard) to avoid coating peeling after stamping

 

 

Surface treatment typeCodeFeature
Chromic acid treatmentCGood corrosion resistance, suitable for exposure
Chromic acid treatment + oilingSGood corrosion resistance
Phosphoric acid treatment (including sealing treatment)PHas certain corrosion resistance and good paint performance
Phosphoric acid treatment (including sealing treatment) + oilingQHas certain corrosion resistance, good paint performance, and prevents rust during transportation and storage
Phosphoric acid treatment (excluding sealing treatment)THas certain corrosion resistance and good paint performance
Phosphoric acid treatment (excluding sealing treatment) + oilingVHas certain corrosion resistance, good paint performance, and prevents rust
OilOPrevent rust during transportation and storage
No treatmentMSuitable for immediate painting

 

Material comparison

Chinese standardJapanese standardEuropean standard
DX51D+Z/DC51D+Z (CR)SGCCDX51D+Z
DX52D+Z/DC52D+ZSGCD1DX52D+Z
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


FAQ

Q: Do you accept third-party inspection?

A: Yes, we absolutely accept it.

 

Q: Do you provide samples? Free or extra?

A: The cost of samples is calculated based on the value. Shipping fee is necessary.

 

Q: Do you have a large inventory of steel?

A: Yes, we have a large indoor warehouse with a total annual spot inventory of more than 200,000 tons.

 

 

Q: What is your delivery time and supply capacity?

A: The delivery time is usually within 15~28 working days, and we can supply about 10,000 tons per month.

 

Q: How to order?

A: Buyer sends inquiry-->Buyer gets quotation-->Order confirmation-->Buyer sends deposit-->Seller prepares goods-->Seller strictly inspects-->Buyer arranges balance payment-->Packaging and delivery.


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