Elite 304 Stainless Steel Coil | Hairline Finish Precision

Product Overview

Our Elite 304 Stainless Steel Coil is engineered for applications demanding superior corrosion resistance, aesthetic versatility, and structural reliability. Featuring a precision hairline finish, this coil is ideal for architectural cladding, automotive trim, and industrial components requiring a blend of durability and refined aesthetics. As a trusted supplier of 304 stainless steel coil stock, we ensure compliance with global standards while offering competitive 304 stainless steel coil price and customizable solutions.

Technical Specifications

Key Performance Attributes

Tensile & Bending Strength

The 304 stainless steel coil achieves a tensile strength of ≥515 MPa, making it suitable for high-stress applications like structural frameworks and 100 ft stainless steel coil tubing systems. Its elongation (≥40%) allows seamless bending and forming for complex geometries, while maintaining resistance to cracking. The austenitic structure ensures excellent ductility even in subzero temperatures, ideal for cryogenic equipment.

Weight Calculation

Calculate coil weight using:
Weight (kg) = Thickness (mm) × Width (m) × Length (m) × Density (7.93 g/cm³)
Example: A 2mm × 1219mm × 50m coil weighs:
2 × 1.219 × 50 × 7.93 ≈ 969 kg

Why Does Stainless Steel Rust?

While 304 stainless steel is highly corrosion-resistant, rust can occur under extreme conditions:

1. Chloride Exposure: Prolonged contact with seawater, de-icing salts, or acidic environments degrades the chromium oxide layer.
2. Mechanical Damage: Scratches during fabrication (e.g., cutting or bending 100 ft stainless steel coil) expose raw metal to oxidation.
3. Galvanic Corrosion: Contact with dissimilar metals (e.g., carbon steel) in electrolyte-rich environments accelerates corrosion.
4. High-Temperature Oxidation: Exposure above 870°C weakens the passive layer, leading to scaling.

Identification & Traceability

Each coil is laser-marked with:

• Grade: 304/1.4301
• Batch Code: Linked to MTC (Mill Test Certificate) for full traceability.
• Surface Finish: e.g., HL (Hairline), 2B (Cold Rolled Matte).

Applications

• Architectural Cladding: Hairline-finished panels for façades and interior design.
• Automotive Systems: Exhaust components and trim parts leveraging 304’s oxidation resistance.
• Industrial Tubing: 100 ft stainless steel coil for hydraulic systems and heat exchangers.
• Food Processing: Hygienic surfaces compliant with ISO 13485 standards.

Manufacturing Excellence

Hairline Finish Process

Our hairline finish is achieved through:

1. Cold Rolling: Precision reduction (±0.01mm tolerance) for uniform thickness.
2. Bright Annealing (BA): Hydrogen-nitrogen atmosphere treatment to eliminate oxidation.
3. Linear Polishing: 120–180-grit abrasives create uniform texture, reducing glare by 60%.

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?

1. Global Compliance: Dual ASTM/EN certifications for cross-border projects.
2. Customization: Slit-to-width (±0.1mm tolerance) and rewinding services for niche applications.
3. Rapid Delivery: 7–15 days lead time with PVC-coated packaging to prevent transit damage.
4. Sustainability: 100% recyclable material with SGS-certified eco-friendly processes.
5. Technical Support: 24/7 engineering guidance on fabrication and corrosion prevention.