Galvanized Steel Coil

galvanized steel coil manufacturer in China

Galvanizing refers to the coating of metallic zinc on the surface of steel, and its function is to protect the steel from corrosion. Galvanized steel coil products are widely used in construction, machinery, industry, agriculture and other fields. It is one of the most widely used golden products in the world.


  • Excellent anti-corrosion, paintability, and processability due to the self-sacrificing characterisiticof zinc.
  • Available to select and produce the desired amount of zinc gilded and in particula enables thick zinc layers.
  • Classified as either zero spangle or extra smooth depending on wheteher the sheet undergoes skin pass treatment.
galvanized steel coil
Galvanized steel coil
galvanized steel strip
Galvanized steel strip
galvanized steel sheet
Galvanized steel sheet

Shanghai Zhengshang Industrial Co., Ltd. supplies normal spangle, smooth spangle and no spingle galvanized steel coils. The standard thickness of the coil is 0.20-4.0mm (supports customization), the width can reach 1500mm, and the zinc layer weight is 40-350g /m2, the weight of the steel coil is 5-30 tons per coil. The product has stable quality and good corrosion resistance. It is widely used in home appliance manufacturing and building structure. If you have purchasing requirements, please contact us!


Product nameGalvanized Steel Coil & Sheet & Plate; GI coil.
Steel gradeDX51D+Z, DX52D+Z, DX53D+Z, S220GD+Z, S250GD+Z, S280GD+Z, S320GD+Z, S350GD+Z, S550GD+Z, SGCC, SGCD1, SGCD2, SGCD3, SGC340, SGC400, SGC440, SGC490, SGC570, etc
Zinc coating Z40-Z350g/m2
StandadASTM, GB, JIS, EN
Surface structure regular spangle coating; small spangle coating; zero spangle coating.
After-treatment modeNormal passivation; Environmental passivation; Fingerprint resistant; Oiled; Passivation and oiling

Schematic Diagram of Layer Structure

Galvanized steel sheet consists of basic steel (cold-rolled or hot-rolled steel), zinc coating (20-275g/m2-single side, surface treatment layer (passivation, oil coating, lacquer, phosphorous, etc.)

Schematic Diagram of Galvanized Steel Layer Structure

Feature of Spangle

regular spangle coating
Regular spangle coating
small spangle coating
Small spangle coating
zero spangle coating
Zero spangle coating

Galvanized Steel Coil Production Line

Galvanized steel coil production line 01
Galvanized steel coil production line 02

Product Packaging

gi coil package
gi sheet package

Application of Galvanized Steel Coil

Building exterior wall, Pipeline engineering, HVAC products, Electrical box and other electrical products, Roof, door, Car parts, Home appliances, Commercial and residential steel frames, Truss plate, Metal construction purlin, Any other products that require corrosion-resistant materials.

Notice of Cooperation

Monthly Supply: 10000-20000 tons
MOQ: 20 Tons
Delivery Time: 10-35 Days; Specific according to the contract.
Packaging: According to customer needs, provide naked packaging, fumigated wooden pallet packaging, waterproof paper, iron sheet packaging, etc.

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