Architectural Stainless Steel Coil – Mirror Finish 430

Architectural Stainless Steel Coil – Mirror Finish 430

Overview

430-grade stainless steel coils with a mirror finish are engineered for premium architectural applications requiring exceptional aesthetics, corrosion resistance, and structural integrity. Ideal for façades, elevator panels, column covers, and interior décor, this alloy combines functionality with timeless elegance. The mirror-polished surface amplifies light reflection, creating visually striking installations.

Product Specifications

Technical details presented in tabular format for clarity and precision.

Key Characteristics Explained

✦ Tensile Strength (420–450 MPa)

Tensile strength measures the maximum stress 430 stainless steel can withstand before fracturing under tension. This coil’s stainless steel coil top range performance ensures durability in load-bearing applications like structural cladding or roofing. Its balanced carbon content (≤0.12%) prevents brittleness while maintaining resilience against external forces.

✦ Bending Strength (180° Bend Test Approved)

The alloy’s ductility allows seamless bending to tight radii without surface cracking. This property is critical for fabricating curved architectural elements. Our coils undergo strict bend tests, ensuring consistent formability during stainless steel coil slitting or press-brake operations.

✦ Weight Calculation Formula

Calculate coil weight using:
Weight (kg) = Thickness (mm) × Width (mm) × Length (m) × Density (7.75 g/cm³) ÷ 1,000
Example: A 1mm × 1000mm × 500m coil weighs ≈ 3,875 kg.

✦ Identification Marking

Coils are laser-etched with permanent identifiers:

• Grade: 430
• Batch No.
• Thickness/Width
• Compliance Codes (ASTM/EN)
  All markings are non-corrosive and non-intrusive to the mirror finish.

✦ Corrosion Resistance & Rust Prevention

430 stainless steel resists atmospheric oxidation due to its 16–18% chromium content. However, rust may occur under these conditions:

• Chloride Exposure: Coastal environments or de-icing salts can cause pitting. Mitigate via routine cleaning.
• Mechanical Damage: Scratches compromising the passivation layer. Avoid abrasive tools during stainless steel sheet coil handling.
• Galvanic Corrosion: Direct contact with carbon steel or copper. Use insulating fasteners.
  Our coils include a post-production oil film to inhibit surface degradation during transit.

Technical Advantages

❯ Precision Slitting Capabilities

Our stainless steel coil slitting technology achieves width tolerances of ±0.5mm, enabling seamless integration into automated fabrication lines for trim-free installations.

❯ Enhanced Reflectivity

The No.8 mirror finish delivers >90% light reflectivity. Post-polishing annealing eliminates residual stresses, ensuring optical uniformity across large stainless steel sheet coil surfaces.

❯ Thermal Stability

Operating range: -50°C to 800°C. Low thermal expansion minimizes warping under temperature fluctuations in curtain walls and solar cladding.

❯ Sustainability

430 alloy is 100% recyclable and compliant with LEED® Material Credits. Production employs low-emission EAF (Electric Arc Furnace) technology.

Why Choose Our Stainless Steel Coils?

1. Zero Defect Guarantee:
   Rigorous 3-stage inspection (ultrasonic thickness gauging, surface scan, bend testing) ensures flawless finishes.

2. Custom Fabrication:
   Tailored stainless steel coil top range solutions for complex projects, including pre-treated edges or embossed patterns.

3. Global Logistics:
   Climate-controlled shipping with anti-scratch polymer wrapping. Export-ready packaging complies with IMDG/COS standards.

4. Corrosion Warranty:
   20-year warranty against perforation corrosion for architectural applications.

5. Technical Support:
   Dedicated metallurgists assist with design optimization, welding guidelines (AWS D9.1), and corrosion-mitigation strategies.