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Long-Lasting 201/430 Stainless Steel Coil | Mirror Surface Perfection
Long-Lasting 201/430 Stainless Steel Coil | Mirror Surface Perfection
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Long-Lasting 201/430 Stainless Steel Coil | Mirror Surface Perfection
Product Overview
Our Long-Lasting 201/430 Stainless Steel Coil combines aesthetic brilliance with industrial-grade durability, designed for applications requiring corrosion resistance, precision forming, and mirror surface perfection. Ideal for stainless steel heating coil for hot tub systems, architectural cladding, and stainless steel ring shank coil nails manufacturing, this product is trusted by global stainless steel slit coil suppliers and manufacturers. Engineered for longevity, it excels in harsh environments while maintaining superior formability and visual appeal.
Technical Specifications
| Property | 201 Stainless Steel Coil | 430 Stainless Steel Coil |
|---|---|---|
| Thickness | 0.25–3.0mm (Cold Rolled) | 0.02–10mm (Cold Rolled: 0.02–3mm; Hot Rolled: 3–10mm) |
| Width | 3.5–1550mm (Customizable Slit Edges) | 3.5–1550mm (Customizable) |
| Surface Finish | 2B, BA, Mirror, HL (Hairline), No.4 (Matte) | 2B, BA, HL, No.4, Mirror |
| Hardness (Rockwell B) | ≤88 HRB | ≤88 HRB |
| Tensile Strength | ≥520 MPa | ≥450 MPa |
| Yield Strength | ≥275 MPa | ≥205 MPa |
| Elongation (δ5) | ≥40% | ≥22% |
| Density | 7.8 g/cm³ | 7.7 g/cm³ |
| Melting Point | 1400–1450°C | 1427°C |
| Certifications | ASTM A240, JIS G4304, EN 10088-2 | ASTM A240, EN 10088-2, ISO 9444 |
Key Performance Attributes
Tensile & Bending Strength
The 201 stainless steel coil achieves a tensile strength of ≥520 MPa, making it ideal for structural components like stainless steel ring shank coil nails and automotive trim. Its high manganese content enhances work hardening, improving resistance to deformation under load.
The 430 stainless steel coil, with a tensile strength of ≥450 MPa, offers cost-effective durability for applications requiring moderate corrosion resistance, such as stainless steel heating coil for hot tub systems and kitchen equipment. Its ferritic structure balances rigidity with affordability.
Weight Calculation
Calculate coil weight using:
Weight (kg) = Thickness (mm) × Width (m) × Length (m) × Density (g/cm³)
- Example for 201 Coil: 1.5mm × 1.219m × 50m × 7.8 ≈ 713.6 kg
- Example for 430 Coil: 2mm × 1.5m × 50m × 7.7 ≈ 1,155 kg
Why Does Stainless Steel Rust?
While 201 and 430 grades are corrosion-resistant, rust can occur under specific conditions:
- Chloride Exposure: Coastal environments or de-icing salts degrade the chromium oxide layer, particularly in 430-grade coils.
- Mechanical Damage: Scratches during fabrication (e.g., stainless steel slit coil processing) expose raw metal to oxidation.
- Galvanic Corrosion: Contact with carbon steel or copper in electrolyte-rich environments accelerates corrosion.
- High-Temperature Oxidation: Prolonged exposure above 870°C (430-grade) or 400°C (201-grade) weakens the passive layer.
Identification & Traceability
All coils are laser-marked with:
- Grade: 201/1.4372 or 430/1.4016
- Batch Code: Linked to MTC (Mill Test Certificate) for full traceability.
- Surface Finish Symbol: e.g., HL (Hairline), Mirror.
Applications
- Hot Tub Systems: Stainless steel heating coil for hot tub components leveraging 430’s moderate chloride resistance.
- Construction: Stainless steel ring shank coil nails for durable fastening in humid environments.
- Industrial Slitting: Stainless steel slit coil for precision parts in automotive and HVAC systems.
- Architectural Cladding: Mirror-finished 201 coils for façades and interior design.
Manufacturing Excellence
Mirror Surface Precision
Our mirror surface perfection is achieved through:
- Cold Rolling: Precision reduction (±0.01mm tolerance) for uniform thickness.
- Bright Annealing (BA): Hydrogen-nitrogen atmosphere treatment to eliminate oxidation.
- Electropolishing: Micro-imperfection removal for a reflective, corrosion-resistant surface.
Quality Assurance
- Material Sourcing: Direct procurement from TISCO/BAOSTEEL with ISO 9001 certification.
- Testing: Salt spray tests (1,000+ hours) and spectrometer analysis for alloy integrity.
Why Choose Our Stainless Steel Coils?
- Global Compliance: Dual ASTM/EN certifications for seamless cross-border projects.
- Customization: Slit-to-width (±0.1mm tolerance) and rewinding services for niche applications.
- Rapid Delivery: 7–15 days lead time with PVC-coated packaging to prevent transit damage.
- Sustainability: 100% recyclable material with SGS-certified eco-friendly processes.
- Technical Support: 24/7 engineering guidance on fabrication and corrosion prevention.
