DX51D Z150 Galvanized Coil

The ‌DX51D Z150 Galvanized Coil‌ is a ‌cold-rolled carbon steel substrate‌ coated with a ‌150 g/m² zinc layer‌ (≈21 µm thickness) via the ‌hot-dip galvanizing process‌. Designed for ‌stamping, bending, and profiling‌ applications, this EN 10346-compliant material (steel grade 1.0917) combines ‌240–380 MPa yield strength‌ with ‌≥22% elongation‌, making it ideal for automotive panels, HVAC systems, and agricultural equipment. Its ‌self-healing zinc coating‌ ensures ‌15–30 years of corrosion resistance‌ in moderate environments, outperforming electrogalvanized steel by ‌3x in durability‌.

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Product Introduction

DX51D Z150 Galvanized Coil‌ Product Overview‌

The ‌DX51D Z150 Galvanized Coil‌ is a ‌cold-rolled carbon steel substrate‌ coated with a ‌150 g/m² zinc layer‌ (≈21 µm thickness) via the ‌hot-dip galvanizing process‌. Designed for ‌stamping, bending, and profiling‌ applications, this EN 10346-compliant material (steel grade 1.0917) combines ‌240–380 MPa yield strength‌ with ‌≥22% elongation‌, making it ideal for automotive panels, HVAC systems, and agricultural equipment. Its ‌self-healing zinc coating‌ ensures ‌15–30 years of corrosion resistance‌ in moderate environments, outperforming electrogalvanized steel by ‌3x in durability‌.


‌Key Technical Specifications‌

‌1. Dimensional & Coating Properties‌

  • ‌Base Steel Thickness‌: 0.12–3.5 mm (±5% tolerance per ASTM A924)
  • ‌Width‌: 600–1,500 mm (custom slit for precision stamping dies)
  • ‌Length‌: Standard 508 mm/610 mm or customized up to 6,000 mm
  • ‌Zinc Coating‌:
    • ‌Z150‌: 150 g/m² (21 µm) for suburban/light industrial use
    • ‌Zinc Layer Options‌: 60–275 g/m² (8–80 µm)
  • ‌Surface Finish‌:
    • ‌Zero Spangle (Z)‌: Smooth, spangle-free (Ra ≤0.8 µm) for painting
    • ‌Minimized Spangle (M)‌: Fine crystalline texture (Ra 1.2–2.5 µm)

‌2. Chemical Composition‌

Element C (%) Si (%) Mn (%) P (%) S (%) Ti (%)
‌Limit‌ ≤0.12 ≤0.50 ≤0.60 ≤0.10 ≤0.045 ≤0.30

‌Key Alloy Benefits‌:

  • ‌Low Carbon Content‌: Enhances weldability and formability.
  • ‌Controlled Manganese‌: Balances strength and ductility.

‌Mechanical Performance‌

Property DX51D Z150 DX52D Z150 DX53D Z150 S350GD Z150
‌Yield Strength (MPa)‌ 240–380 140–300 140–260 ≥350
‌Tensile Strength (MPa)‌ 270–500 270–420 270–380 ≥420
‌Elongation (%)‌ ≥22 ≥26 ≥30 ≥16

‌Functional Metrics‌:

  • ‌Bendability‌: 0T–2T (180° bend at 0.8 mm thickness).
  • ‌Weldability‌: 8–12 kA spot welding current (15% lower than bare steel).
  • ‌Impact Resistance‌: 35 J/cm² at -20°C (ISO 148-1).

‌Corrosion Resistance by Environment‌

‌Environment‌ ‌Recommended Coating‌ ‌Salt Spray Resistance‌
Indoor (Dry) Z10 (100 g/m²) 800–1,000 hours
Suburban Z20 + Paint (200 g/m²) 1,500–2,000 hours
Industrial/Urban Z27 (270 g/m²) 2,500+ hours
Coastal Z27 + Paint 3,000+ hours

‌Surface Treatment Options‌

‌Code‌ ‌Treatment‌ ‌Features‌ ‌Applications‌
‌C‌ Chromic Acid Passivation Hexavalent chromium-free, RoHS-compliant Automotive chassis
‌P‌ Phosphating + Sealing Enhances paint adhesion (5–7 µm primer) Pre-painted roofing panels
‌O‌ Oiling (Anti-Fingerprint) Prevents white rust during storage Export packaging
‌M‌ Untreated Immediate post-painting readiness Custom fabrication projects

‌Global Standard Equivalents‌

‌China (GB)‌ ‌Japan (JIS)‌ ‌Europe (EN)‌ ‌USA (ASTM)‌
DC51D+Z SGCC DX51D+Z A653 CS Type B
S350GD+Z SGC340 S350GD+Z A653 SS345
S550GD+Z SGC490 S550GD+Z A653 SS550

‌Applications‌

  • ‌Construction‌: Roofing, gutters, and structural cladding.
  • ‌Automotive‌: Body panels, fuel tanks, and exhaust shields.
  • ‌Agriculture‌: Grain silos, livestock fencing, and machinery parts.
  • ‌Appliances‌: Washing machine drums, refrigerator liners.

‌Sustainability & Certifications‌

  • ‌Recycled Content‌: 25–35% (ISO 14021 compliant).
  • ‌Carbon Footprint‌: ≤1.4 tons CO₂ per ton of steel.
  • ‌Certifications‌: RoHS, REACH, LEED v4.1, ISO 9001.

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G90 Galvanized Sheet supplier

Luo Kaiwei Steel Company is a comprehensive steel supplier that produces a variety of carbon steel plates, carbon steel pipes, galvanized steel, carbon steel coils, and steel profiles.

Luo Kaiwei Steel Company is a multi-ISO certified steel manufacturer specializing in carbon steel plates, pipes and galvanized coils since 2010. Competitive prices and ASTM/JIS compliant. Get instant quotes for bulk orders and global shipping support.

Tel: +86 15635685959

E-mail: [email protected]  

WhatsApp: +86 18912200505

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