Material Composition & Properties
Chemical Composition (%):
C: ≤0.12 | Si: 0.20-0.40 | Mn: 0.20-0.50
P: 0.07-0.15 | S: ≤0.030 | Cu: 0.25-0.55
Cr: 0.30-1.25 | Ni: ≤0.65
Unique alloy design forms stable rust layer (patina) within 18-36 months
Corrosion resistance 4-8× superior to carbon steel in atmospheric conditions
Mechanical Characteristics
Yield Strength: ≥345 MPa
Tensile Strength: 480-630 MPa
Elongation: ≥22%
Impact Toughness: ≥27J at -20°C
Brinell Hardness: 130-180 HB
Weather Resistance Performance
Rust stabilization mechanism:
Phase 1: Initial uniform rusting (0-6 months)
Phase 2: Protective layer formation (6-18 months)
Phase 3: Stable patina development (18+ months)
Suitable for corrosion categories C2-C4 per ISO 12944
Withstands urban, industrial and marine environments
Heat Resistance Capabilities
Maintains structural integrity up to 550°C
Oxidation resistance at elevated temperatures:
≤450°C: Excellent
450-550°C: Good
550°C: Requires protection
Manufacturing Specifications
Production Process:
Hot rolling at 850-950°C
Controlled cooling rate
Available Dimensions:
Thickness: 2.0-100mm
Width: 1000-2500mm
Length: 3000-12000mm
Surface Finish:
Mill scale (as rolled)
Shot blasted (SA 2.5)
Pickled (upon request)
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