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| Customization: | Available |
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| Standard: | ASTM, AISI, GB, JIS, DIN, BS |
| Certification: | ISO, RoHS, IBR |
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Corten A HR Steel 1.6mm | Self-Healing Rust Layer + Salt Fog Resistance 2000h for Shipping Containers
Engineered for Extreme Durability in Marine Environments
TIMES STEEL's Corten A hot-rolled steel delivers unmatched corrosion resistance and structural longevity for shipping container manufacturing. The 1.6mm thickness optimized for container walls and roofs forms a self-protecting rust barrier that withstands 2000+ hours of salt fog exposure - eliminating the need for paint while reducing lifecycle costs.
Key Performance Advantages
Patina Protection System
Self-Healing Rust Layer: Forms dense, adherent FeOOH patina that blocks further oxygen/chloride penetration (ASTM A588).
Salt Fog Resistance: 2000h red rust-free performance (exceeds ISO 9227 C5-M classification).
Structural Integrity
High Yield Strength: 345 MPa min (50 ksi) vs. 235 MPa for standard carbon steel.
Fatigue Resistance: 2x higher cyclic load capacity (EN 12663 compliance).
Economic Efficiency
Zero-Paint System: Saves $15-20/container in coating costs.
50-Year Design Life: 3x longevity vs. painted carbon steel in marine service.
Technical Specifications
| Parameter | Specification |
|---|---|
| Steel Grade | Corten A (ASTM A588 / EN 10025-5) |
| Thickness | 1.6mm ±0.10 (hot-rolled) |
| Yield Strength | ≥345 MPa (50 ksi) |
| Tensile Strength | 485-650 MPa (70-94 ksi) |
| Salt Spray Resistance | >2000h (ASTM B117) |
| Self-Protection Start | 6-18 months (accelerated in coastal) |
Marine Exposure Performance Data
| Condition (5-year) | Corrosion Rate (μm/year) | Visual Assessment |
|---|---|---|
| Coastal Atmosphere | 8-12 | Stable patina layer |
| Container Stacking Zone | ≤15 | No perforation |
| Cargo Hold Condensation | 5-8 | Uniform surface rust |
Container-Specific Benefits
Side Walls/Roofs: 25% weight reduction vs. 2.0mm carbon steel while maintaining RSC (Revised Safety Convention) strength.
Corner Posts: Withstands 9-high stacking loads (ISO 1496 standard).
Floor Structures: Abrasion-resistant patina survives forklift traffic.
Cargo Doors: No paint peeling contaminating goods.
Competitive Comparison
| Property | Corten A 1.6mm | Painted Carbon Steel | Stainless 316L |
|---|---|---|---|
| Salt Fog Resistance | 2000h | 500h (before creep) | 4000h |
| Material Cost | $850/ton | $650/ton | $4500/ton |
| Lifecycle Cost (15-yr) | $0.18/kg/year | $0.35/kg/year | $0.50/kg/year |
| Maintenance | None | Repaint every 5 yr | None |
Fabrication Guidelines
Welding: Use AWS E7018 electrode | Preheat ≤120°C for >6mm thickness.
Cutting: Plasma/laser preferred; shear burrs require grinding.
Forming: Minimum bend radius = 2x thickness (T<1.6mm).
Joining: MIG weld roof seams; seal overlaps with silicone.
Quality Assurance
Certification: EN 10204 3.1 with Cu-P-Cr-Ni traceability.
Testing:
Charpy V-notch impact: 27J @ -20°C (ISO 148-1)
Patina adhesion: Cross-cut Class 1 (ISO 2409)
Tolerances:
Thickness: ±0.08mm
Flatness: ≤1mm/1000mm
Specify Corten A Because:
2000h Certified Salt Resistance - Survives transpacific routes.
10% Higher Payload Capacity - Thinner gauge = lighter tare weight.
Zero Maintenance - Eliminates container downtime for repainting.
CSC/Fire Safety Compliance - Non-combustible (Class A1 EN 13501).
Request Container Design Guide + Corrosion Atlas
Engineering Support
Fatigue life calculations per ISO 12107
Finite element analysis for custom designs
Welding Procedure Specifications (WPS)
On-site patina acceleration treatment
Certifications
ISO 1496 (Container Standards) | ABS Type Approval | IMO MSC.61(67) Fire Test
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