S220GD Hot Dip Galvanized Steel Coils Z275 GI Coil 0.12-4.0mm Thickness 30-275g/m² Zinc Coating

Hot dip galvanized steel coils are manufactured through a continuous galvanizing process where rolled steel plates are immersed in molten zinc to create a protective zinc coating. This process ensures superior corrosion resistance and extended service life in various environmental conditions.

• Passivation, Fat liquoring, Stop-off lacquer
• Spangle Coating: Big Spangle, Small Spangle, Spangle-free
• Surface Treatment: Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U)

Compliant with EN 10142, EN 10147, EN 10292, JIS G3302, ASTM A653/A653M, BQB 420. Available grades include Q195, Q235, Q235B, Q345, Q345B, SGCH, S280GD+Z, S350GD+Z, SGCC, DX51D/DX52D, and more.

• Superior Corrosion Resistance: Zinc coating provides electrochemical protection, lasting decades without peeling
• Enhanced Durability: Sacrificial anode action protects steel even when coating is damaged
• Excellent Workability: Maintains steel processability with thin, uniform zinc layer
• Thermal Resistance: Stable performance up to 230°C without discoloration
• High Adhesion: Strong bond prevents peeling during processing

We offer comprehensive value-added processing including bending, welding, decoiling, punching, cutting, moulding, and custom requirements.

Standard seaworthy packaging with anti-rust paper and plastic inner protection. Outer protection includes steel guard boards and multiple strapping. Container compatibility: 20ft GP (24-26 CBM), 40ft GP (54 CBM), 40ft HC (68 CBM).

• Mechanical Testing (Tensile of Area)
• Hardness Testing
• Chemical Analysis - Spectro Analysis
• Positive Material Identification (PMI)
• Micro and Macro Testing
• Pitting Resistance and Flaring Tests
• Intergranular Corrosion (IGC) Testing