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Hot Dipped Galvanized Steel Coil – Zinc-Coated GI Coil for Roofing, Forming, and Fabrication

High-performance hot dipped galvanized steel coils with uniform zinc coating, excellent corrosion resistance, and strong formability. Widely used in construction, automotive, ducting, and general manufacturing.
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  • Galvanized coil

  • ZHONG RUN

Product Description

Product Name Galvanized Steel Coil
Standard ASTM/ AISI/DIN/GB/EN/JIS,etc
Grade SGCC,DC51D,DX51D,DX52D,DX53D,DX54D,SGCD,SGHC,,S350GD,S450GD,S550GD,etc
Thickness 0.12mm-4.0mm or 0.8mm/1.0mm/1.2mm/1.5mm/2.0mm,etc
Width 600mm,762mm,914mm,1000mm,1200mm,1219mm,1250mm,1500mm
Zinc Coating z30g-z275g /m2, or as clients required
Spangle zero spangle, regular spangle or normal spangle
Hardness soft or hardness, as clients required.
Surface treatment chromated and oiled, chromated and non-oiled,Anti-finger
Coil Weight 3-8Mt or as per requirement.
Application Corrugated steel sheet,Ceiling channel,industrial refrigeration,cold storage,door panel,sandwich panel,PU panel,writing board,PCM steel plate


Hot Dipped Galvanized Steel Coil (GI Coil) is produced by immersing cold-rolled steel in a bath of molten zinc, forming a tightly bonded zinc-iron alloy layer. This continuous hot-dip galvanizing process offers superior corrosion resistance, smooth surface finish, and long-term durability, making GI coils suitable for a wide range of indoor and outdoor applications.

The zinc coating acts as a sacrificial layer, protecting the steel from rust and extending its service life even in harsh environments. Coils are available in various coating weights, spangle finishes, and surface treatments to meet different industry requirements.

gi steel coil

PRODUCT SPECIFICATIONS​

  • Standard: ASTM A653 / JIS G3302 / EN 10346 / ISO 3575

  • Grade: SGCC, SGCH, DX51D+Z, S350GD+Z, etc.

  • Zinc Coating: Z40 – Z275 g/m² (G30–G90 or as customized)

  • Thickness: 0.12mm – 3.0mm

  • Width: 600mm – 1500mm

  • Coil Weight: 3 – 10 metric tons

  • Coil ID: 508mm / 610mm

  • Spangle: Regular / Zero / Minimized

  • Surface Treatment: Chromated / Oiled / Dry / Skin-passed

  • Edge: Mill edge / Slit edge

MECHANICAL PROPERTIES 

Yield Strength: 240 – 280 MPa

Tensile Strength: 270 – 500 MPa

Elongation (A80): ≥ 22%

Hardness: ≤ 85 HRB


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APPLICATION

  1. Roofing sheets & wall cladding panels

  2. Steel framing, ceiling grids, partition systems

  3. HVAC ductwork & ventilation piping

  4. Automotive inner panels, reinforcement parts

  5. Appliance body panels, enclosures, and cabinets

  6. Agricultural structures, fencing, and furniture


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Zhongrun Steel (Foshan) Co., Ltd. is located in the beautiful Foshan City, Guangdong Province. It has 25 years of production and sales experience, exported to more than 30 countries, and has more than 500 cooperative customers.

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