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Galvanized Steel Coil

Product Galvanized Steel Coil
Standard ASTM, BS, EN, DIN, GB, JIS, ASME, etc.
Grade Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S450GD, S550GD;
SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC490, SGC570;
SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550),
CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement
Thickness 0.12~3.00 mm (cold rolled),1.20~4.60 mm (hot-rolled)
Width 600mm-1500mm or 914mm/1000mm/1200mm/1219mm/1220mm
Tolerance Thickness: ±0.01 mm
Width: ±2 mm
Coil ID 508 mm - 610 mm
Coil weight 3 Tons - 8 Tons or as client requirement
Zinc coating 30g/m² - 600g/m²

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Galvanized Steel Coil

Galvanized Steel Coil Product Description

Product Galvanized Steel Coil
Standard ASTM, BS, EN, DIN, GB, JIS, ASME, etc.
Grade Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S450GD, S550GD;
SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC490, SGC570;
SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550),
CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement
Thickness 0.12~3.00 mm (cold rolled),1.20~4.60 mm (hot-rolled)
Width 600mm-1500mm or 914mm/1000mm/1200mm/1219mm/1220mm
Tolerance Thickness: ±0.01 mm
Width: ±2 mm
Coil ID 508 mm - 610 mm
Coil weight 3 Tons - 8 Tons or as client requirement
Zinc coating 30g/m² - 600g/m²
Spangle Big spangle,Regular spangle,Mini spangle,Zero spangle
Surface treatment Oil, Passivation, Chromated, Skin-passed, Anti-finger Print
HS code 72104900.00
Loading Port Tianjin Port, Qingdao Port, Shanghai Port
Payment Term L/C or T/T(30% deposit)
Delivery time Within 15 workdays after the deposit received
Package plastic film + water proof paper + steel plate + packing steel strip
Application Widely used in road, railway, civil construction, water conservancy construction; all kinds of machinery, electrical appliances, window protection and aquaculture, etc.

 

galvanized steel Chemical Component

 

STEEL GRADE CHEMICAL COMPOSITION % MECHANIC PROPERTY C.B OF COATING
C Si Mn S P T.S Y.S E.L COATING
x103 x103 x102 x103 x103 Mpa Mpa % d=0 180° G/M²
JIS G3302 SGCC 12 30 41 31 21 480 300 13 OK Z60-150
JIS G3302 SGCH 12 10 21 18 8 680 650 20 OK Z60-150
ASTM A653 CS.B 29 30 60 35 30 386 250-380 20 OK Z60-275
DX51D+Z 20 21 18 1.8 11 355 245 38 OK Z60-275
G550 12 6 73 5 17 715 654 8 OK Z60-275

Mechanical properties of galvanized steel

Usage Grade Yield strength(Mpa) Tensile strength(Mpa) Elongation rate %
Punching galvanized steel DC51D+Z - 270-500 ≥20
DC52D+Z 140-300 270-420 ≥22
DC53D+Z 140-260 270-380 ≥26
DC54D+Z 140-220 270-350 ≥30
Structure galvanized steel S220GD+Z ≥220 ≥300 ≥18
S250GD+Z ≥250 ≥330 ≥17
S280GD+Z ≥280 ≥360 ≥16
S320GD+Z ≥320 ≥390 ≥15
S350GD+Z ≥350 ≥420 ≥14
S400GD+Z ≥400 ≥470 -
S500GD+Z ≥500 ≥530 -
S550GD+Z ≥550 ≥560 -

 

Hot DIP Dx51d 120GSM Zinc Coated Gi Steel Galvanized Steel Coil PPGI for Roofing Sheet Price
Galvanized Steel Testing

 

 


Galvanized Steel Coil Advantages

 

 

 

1. Available for customized specifications on customers' request.

2. Perfect Corrosion Resistance. The service life of galvalume is 3-6 times as long as that of galvanized surface.
3. Perfect Processing Performance. Fully meet the requirements of roll processing, stamping, bending, etc.
4. Perfect Light Reflectivity. The ability to reflect light and heat is twice that of galvanizing.
5. Perfect Heat Resistance. Galvalume products can be used at 315 degrees Celsius for a long time without discoloration.
6. Excellent adhesion between the paint. Easy to paint and can be painted without pretreatment and weathering.
Galvanized Steel Coil Types
According to the processing method, we divide galvanized steel into the following categories:
1. Hot-dip Galvanized Steel Coil
As the name implies, hot-dip galvanizing is immersing the cleaned iron sheet into the molten zinc bath at about 500 degrees to form a zinc layer. It is the most commonly used method. It has some advantageous features:
1) The entire steel surface is uniformly covered with a zinc layer, even the corners, hollows, etc. so that the steel sheet is fully protected.
2) The cost of hot-dip galvanizing is cheap.
2. Electro-galvanized Steel Coil
Electro-galvanizing is a process of applying a layer of zinc to steel through electroplating, with a saline anode and steel conductor. It is able to enhance the corrosion and heat resistance of steel. Also, it makes steel sheets more good-looking

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