SMA570W Corten steel plate

‌JIS G3114 SMA570W Corten Steel: High-Strength Weathering Steel for Structural Durability & Corrosion Resistance‌. ‌Engineered for Extreme Environments: Bridges, Railcars & Industrial Infrastructure‌ JIS G3114 SMA570W is a premium ‌weathering steel‌ (Corten steel) designed to resist atmospheric corrosion 4–6x better than standard carbon steel. With a protective ‌self-healing oxide layer‌ that forms under cyclic weather exposure, SMA570W eliminates painting needs in bridges, shipping containers, and power plant components like air preheaters.
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Product Introduction

JIS G3114 SMA570W Corten Steel: High-Strength Weathering Steel for Structural Durability & Corrosion Resistance‌.

‌Engineered for Extreme Environments: Bridges, Railcars & Industrial Infrastructure‌

JIS G3114 SMA570W is a premium ‌weathering steel‌ (Corten steel) designed to resist atmospheric corrosion 4–6x better than standard carbon steel. With a protective ‌self-healing oxide layer‌ that forms under cyclic weather exposure, SMA570W eliminates painting needs in bridges, shipping containers, and power plant components like air preheaters.


‌Certifications & Key Advantages‌

  • ‌JIS G3114 & ASTM A871 Certified‌: Complies with EN 10025 for structural integrity.
  • ‌Cost Efficiency‌: 40% lower lifecycle costs vs. painted steel due to zero maintenance.
  • ‌Custom Sizes‌: Thickness 3–150mm (±0.5mm), width up to 4,000mm.
  • ‌MOQ 1 Ton‌: Available as plates, sheets, or sections (H-beams, angles).

‌Technical Specifications‌

‌Chemical Composition (Weight %)‌

Element C (max) Si Mn P (max) S (max) Ni Cr Cu
SMA570W 0.18 0.15–0.65 ≤1.40 0.035 0.035 0.05–0.30 0.45–0.75 0.30–0.50

‌Alloy Design‌:

  • ‌Copper (0.30–0.50%)‌: Boosts atmospheric corrosion resistance.
  • ‌Chromium (0.45–0.75%)‌: Forms stable rust layer to halt further oxidation.
  • ‌Low Carbon (0.18%)‌: Enhances weldability (AWS D1.5 compliant).

‌Mechanical Properties‌

Yield Strength (Rp0.2) Tensile Strength (Rm) Elongation (A50) Charpy Impact (-20°C) Hardness (HBW)
420–460 MPa 570–720 MPa 19–26% ≥27J (EN ISO 148-1) 150–200

‌Performance Highlights‌:

  • ‌720 MPa Tensile Strength‌: 30% stronger than conventional Corten A.
  • ‌27J Impact Toughness‌: Withstands subzero temperatures in Arctic projects.
  • ‌Adaptable Processing‌: Hot-rolled, TMCP, or QT-treated for precision.

‌Applications‌

  1. ‌Infrastructure‌: Bridge girders, transmission towers, and highway guardrails.
  2. ‌Transportation‌: Railcar chassis, container walls, and truck frames.
  3. ‌Energy‌: Air preheater tubes, boiler economizers, and chimney stacks.
  4. ‌Architecture‌: Sculptures, façades, and rooftop support beams.

‌Fabrication Guidelines‌

  • ‌Cutting‌: Plasma or laser (pre-heat to 120°C for thickness >25mm).
  • ‌Welding‌: Use E7018-G electrodes with 100–150°C preheat (AWS D1.5).
  • ‌Bending‌: Minimum radius = 2x plate thickness (cold-formed).
  • ‌Patina Formation‌: Requires 6–18 months of outdoor exposure for full corrosion resistance.

‌Quality Assurance‌

  • ‌Ultrasonic Testing‌: EN 10160 Class E1 for internal defect detection.
  • ‌Salt Spray Test‌: 1,200+ hours (ASTM B117) for corrosion validation.
  • ‌Certifications‌: EN 10204 3.1 MTRs, CE, and PED compliance.

‌Competitive Advantages‌

  • ‌Lifespan‌: 50+ years in coastal/industrial environments without coating.
  • ‌Lead Time‌: 20–30 days (MOQ 1 ton).
  • ‌Sustainability‌: 100% recyclable with 20% lower CO₂ footprint than stainless steel.

‌Logistics & Compliance‌

  • ‌Packaging‌: VCI film + edge guards for.
  • ‌Temperature Limits‌: Suitable for -50°C to 400°C service.
  • ‌Custom Coatings‌: Optional galvanized (GI) or Al-Zn (AZ) finishes.

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Supplier of various types of carbon steel

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.

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