Mild Steel / Galvanized Steel Sheet/Coil

Hot dip Galvanized steel Sheet and Coil with wholesale price

galvanized steel coil

What is the hot dip galvanized steel

Hot-dip galvanizing is a process of coating steel with a thin zinc layer which used to halt the formation of rust. The surface treatment is done by passing the steel through molten zinc at high temperature.It provides long-term protection for steel products.

The Zinc coating has corrosion resistance and sacrificial corrosion function which delay the production of red rust. The zinc coating of the hot dip galvanized steel is higher than electro-galvanized steel sheet so has better corrosion resistance.

We can supply the hot-dipped galvanized steel sheet and coil with slitting, shearing, blanking, degreasing and brushing, stretching and leveling, and metallurgical support.

Specification of hot dip galvanized steel sheet and coil

Grade SGHC, SGH400, SGCC, SGCH, SGCD, SGC400...
Thickness Cold rolled: 0.11-3.2mm;Hot rolled: 1.6-6.0mm
Width 610-1630mm
Zinc coating G20, G30, G40, G60, G90, G115,G140, G165, G185, G210.
Surface Finish Regular Spangle Sheet,Minimum Spangle
Surface Treatment Chemical Treatment, Oil, Chemical Treatment and Oil, Dry, Phosphatized
galvanized sheet

Surface structure of hot dip galvanized steel sheet and coil

Surface structure Code No. Features Application
Conventional spangle Z Spangles condensated on zinc coating
under normal conditions after galvanizing.
Commercial purposes
Small spangle X Surface in spangles smaller than
conventional ones and due to controlled
condensation of zinc coating.
Applications where conventional
spangles cannot meet the surface
appearance requirements.
Skin passed spangle G Surface structure after special skin
pass treatment.
Applications of high surface
quality requirements, such as
color coating base plates.
Skin passed small spangle GX - -
Zero spangle N No visible spangles on coating surface
as a result of a special production process.
Zn-Fe alloy R No spangle, gray, normally matter Applicable to further painting

Surface treatment of hot dip galvanized steel sheet and coil

Item Description
Chromate treatment (L) Chromate treatment is a chemical treatment with an aim to prevent white rusts formed on product surfaces during transportation and storage.
Oiling (Y) Oiling is to prevent white rusts formed on product surfaces during transportation and storage.
Chromate treatment+ Oiling (LY) Chromate treatment+ Oiling (LY) This treatment with oiling after surface chromate treatment is to further avoid the forming of white rusts.

JIS G 3302 galvanized steel sheet chemical composition

Grade Chemical Composition.% Max
C Mn P S
SGHC 0.15 0.8 0.05 0.05
SGHC400 0.25 1.7 0.2 0.05
SGHC440 0.25 2 0.2 0.05
SGHC490 0.3 2 0.2 0.05
SGHC540 0.3 2.5 0.2 0.05
SGCC 0.15 0.8 0.05 0.05
SGCH 0.18 1.2 0.08 0.05
SGCD1 0.12 0.6 0.04 0.04
SGCD2 0.1 0.45 0.03 0.03
SGCD3 0.08 0.45 0.03 0.03
SGCD4 0.06 0.45 0.03 0.03
SGC340 0.25 1.7 0.2 0.05
SGC400 0.25 1.7 0.2 0.05
SGC440 0.25 2 0.2 0.05
SGC490 0.3 2 0.2 0.05
SGC570 0.3 2.5 0.2 0.05

Applications of hot dip galvanized steel sheet and coil

  • Automotive
  • Pipe and Tub
  • Outdoor Recr
  • Agriculture
  • Construction

Advantage of hot dip galvanized steel sheet and coil

  • Superior Formability
  • Excellent Corrosion Resistance
  • Consistent Quality

We offer galvanized steel sheet with using techniques perfected by years of experience, our hot-dip galvanized steel sheet is formed on a line that is continuously galvanizing to guarantee smooth, high quality end products. Our hot-rolled galvanized steel sheet provides a cost-effective solution for heavy-gauge

Standard Specifications hot dip galvanized steel sheet and coil

ASTM A 653 hot-dipped galvanized carbon steel sheet

ASTM A 1003 hot-dipped galvanized carbon steel sheet for cold-formed framing members

SAE J1392 hot-dipped galvanized, high-strength, low-allow carbon steel sheet

SAE J403 hot-dipped galvanized carbon sheet steel

ASTM A929 hot-dipped galvanized steel sheet for corrugated steel pipe

Additional JIS, DIN, and manufacturer-specific standards available on an inquiry-by-inquiry basis.