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Hot-dip Galvanized Steel

Hot-dip Galvanized Steel

The properties of hot-dip galvanized steel are tough coating, completed protection, less maintenance and long life.

Hot-dip galvanized steel combines utility with beauty. It consists of tin, chrome, zinc or paint, which are the extra finish applied to the natural steel surface. The application of coating is to protect the surface of steel from oxidation and it is also used to enhance requirements for visual appearance.

Mechanical Properties

Steel Grade-JIS G3302 SGH 340 (Tensile strength 35kgf/mm²)
  • Yield Strength
  • ≧ 245Mpa
  • Tensile Strength
  • ≧ 340Mpa
  • Elongation
  • ≧ 20%

Product Specification and Size :

Galvanized Steel Coils (Zinc Coated)

Specifications CNS G3027 2013 JIS G3302 2012 ASTM A653M 2011 ASTM 1397 2010 EN 10326-10327 2004
EN 10346 2009
  Hot-rolled Base: SGHC
SGHD
SGH
340
400
440
490
540		 Cold-rolled Base:
SGCC
SGCD
1~3
SGC
340
400
440
490
570		 Hot-rolled Base:
SGHC
SGHD
SGH
340
400
440
490
540		 Cold-rolled Base:
SGCC
SGCD
1~3
SGC
340
400
440
490
570		 DS
DDS
CS TYPE A, B, C
FS TYPE A, B
SS GRADE
33(230)
37(255)
40(275)
50(340)CLASS 1~3
80(550)CLASS 1~3		 G1~G3
G250
300
350
400
450
550		 DX51-52-53D
S220GD
250
280
320
350
550
Thickness of Base Steel (mm) 1.2~4.50 SGCD1~3: 0.27~2.0mm
SGCC/SGC: 0.18~2.0mm		 1.2~4.50 SGCD1~3: 0.27~2.0mm
SGCC/SGC: 0.18~2.0mm		 DS/DDS: 0.27~2.0mm
CS/FS: 0.18~4.50mm
SS GRADE 33~80: 0.19~4.50mm		 G1: 0.18~4.50mm
G2 & G3: 0.27~2.0mm
G250~550GD: 0.19~4.5mm		 DX51D: 0.18~4.50mm
DX52~53D: 0.27~2.0mm
S220~550GD: 0.19~4.5mm
Coating Mass
Regular Spangle (Note: thickness above 0.60mm)		 Z12 - Z60 Z12 - Z60 Z12 - Z60 Z120 - Z600 Z120 - Z600 Z120 - Z600
Coating Mass
Minimized (Zero) Spangle		 Z10 - Z60 Z10 - Z60 Z10 - Z60 Z100 - Z600 Z100 - Z600 Z100 - Z600
Surface Finish Regular Spangle, Minimized Spangle, Extra-Smooth
Surface Treatment Chromating Treatment, Oiled or Resin Coated (Anti-finger Print)
Remarks 1. Tolerance for thickness, width, flatness and so on conforms to individual products specification.
2. All products with thickness 2.0mm and under can be skinpassed.
3. The specification for thickness under 1.6mm for hot-rolled base metal according to JIS G3302 will be the same as for thickness 1.6mm and above.
4. Coil inside diameters can be either 508mm or 610mm. Maximum coil outside diameter is 2000mm.
5. Please make inquiries to our Sales & Marketing Division for products with special specifications.
6. The specification of ASTM such A653M, A792M, and A875M have been updated to the latest revisions.

Available Size

Hot-dip Galvanized Steel Coils (Zinc Coated Steel)
Type Coating Mass Thickness (mm) Width (mm)
CGI Z08~Z27 0.2~2.0 30~1524
HGI Z08~Z27 1.2~4.5 30~1524

Thickness: 0.15~4.5mm
Width: 600~1534mm

Application

Hot dip galvanized steels is specified for optimum corrosion protection and enhanced aesthetic appeal. Typical residential uses for galvanized steel include doors, window hoods, gutters, downspouts, etc.