JIS G3125 SPA-H is a weathering steel grade commonly used in construction and architectural applications due to its excellent atmospheric corrosion resistance. Here's an overview of the SPA-H Corten Steel Weathering Plate:
- Weather Resistance: SPA-H develops a stable, protective rust layer when exposed to atmospheric conditions, reducing the need for painting or coating. Ideal for environments exposed to air, rain, and pollution.
- Mechanical Properties: Yield Strength: ≥ 355 MPa (for plates ≤ 16mm thickness) Tensile Strength: 490–610 MPa Good toughness ensures durability in structural applications.
- Chemical Composition: Carbon (C): Max 0.12% Manganese (Mn): 0.2–0.6% Silicon (Si): 0.25–0.75% Copper (Cu): 0.25–0.55% (enhances weather resistance) Chromium (Cr): 0.3–1.25% (improves corrosion resistance) Nickel (Ni): Max 0.65%
- Applications: Bridges, buildings, and outdoor sculptures. Railway cars and shipping containers. Fences, roofing, and wall cladding in modern architecture.
- Standards: SPA-H complies with JIS G3125, a Japanese Industrial Standard for high-strength weather-resistant steel plates.
- Low Maintenance: The natural rust layer eliminates the need for regular painting.
- Aesthetic Appeal: The patina develops a warm, rustic appearance popular in architectural projects.
- Sustainability: Long service life reduces material waste and maintenance costs.
Comparison with ASTM Standards:
- The closest equivalent in the US: is ASTM A588 (Grade B), another weathering steel grade with similar properties and applications.
Feel free to ask if you need more details or assistance with specific dimensions, processing options, or pricing!
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