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Certified Stainless Steel Coil Stock | 304L Food Grade & 2B Finish
Certified Stainless Steel Coil Stock | 304L Food Grade & 2B Finish
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Certified Stainless Steel Coil Stock | 304L Food Grade & 2B Finish
Product Overview
Our stainless steel coil stock is engineered for industries demanding exceptional corrosion resistance and compliance with food-grade standards. Designed for applications ranging from 304 stainless steel coil heat exchangers to architectural cladding, these coils combine 304L’s ultra-low carbon content with a precision 2B surface finish. Manufactured under ISO 9001 and CE certifications, they meet ASTM A240, JIS G4305, and EN 10088-2 standards, ensuring reliability in food processing, chemical engineering, and marine environments.
Technical Specifications
1. Dimensional & Mechanical Properties
| Parameter | Specification (304L Grade) |
|---|---|
| Thickness | 0.3mm – 3.0mm (±1% tolerance) |
| Width | 1000mm – 1500mm (customizable) |
| Surface Finish | 2B, BA, NO.4, 8K, Mirror |
| Tensile Strength | ≥485 MPa |
| Yield Strength | ≥170 MPa |
| Elongation | ≥40% (in 50mm) |
| Hardness (HV) | ≤220 |
| Density | 7.98 g/cm³ |
2. Chemical Composition
| Element | C (%) | Mn (%) | Si (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|
| 304L | ≤0.03 | ≤2.00 | ≤1.00 | 18–20 | 8–12 | – |
Key Features & Applications
1. Food-Grade Compliance
The 304 stainless steel coil is certified for food safety (FDA/EC 1935/2004) due to its low carbon content (≤0.03%), which prevents carbide precipitation during welding and ensures resistance to intergranular corrosion. Ideal for dairy tanks, pharmaceutical machinery, and food processing equipment.
2. 2B Surface Finish
The 2B finish offers a smooth, reflective surface with Ra ≤0.4μm, reducing friction in stainless steel coil heat exchanger systems and enhancing aesthetic appeal for architectural panels or kitchen appliances.
3. Customization & Processing
- Cutting: Precision slitting for widths as narrow as 10mm.
- Forming: Suitable for deep drawing, bending (180° without cracking), and welding (TIG/MIG).
- Packaging: PVC film + wooden crates for international shipping.
Performance & Durability
1. Tensile & Bend Strength
- Tensile Strength: With ≥485 MPa, the stainless steel coil stock withstands high-pressure environments like industrial boilers or chemical pipelines.
- Bend Strength: The elongation rate (≥40%) ensures flexibility for forming complex shapes without cracking, critical for automotive exhaust systems or HVAC ducting.
2. Weight Calculation
Use the formula:
Weight (kg) = Thickness (mm) × Width (m) × Length (m) × 7.98
Example: A 0.5mm × 1219mm × 2000mm coil weighs ≈9.7 kg/m².
3. Rust Prevention
While 304L offers superior corrosion resistance, rust may occur due to:
- Chloride Exposure: Prolonged contact with seawater or de-icing salts.
- Surface Contamination: Iron particles from improper handling tools.
- High-Temperature Oxidation: Continuous use above 450°C degrades the passive chromium oxide layer.
Certifications & Global Compliance
- Standards: ASTM A240, AISI 304L, JIS SUS304L.
- Testing: Eddy current, hydrostatic, and intergranular corrosion tests.
- Sustainability: 100% recyclable with energy-efficient cold-rolled processing.
Why Choose Our Stainless Steel Coil Stock?
- Certified Quality: ISO 9001, SGS, and CE certifications ensure compliance with global food safety and industrial standards.
- Rapid Delivery: 7-day turnaround for bulk orders, supported by 50,000-ton monthly production capacity.
- Custom Solutions: Tailored dimensions (0.3–3.0mm), finishes, and grades (200/300/400 series).
- Technical Support: 24/7 engineering guidance for stainless steel coil supplier projects, from prototyping to mass production.
- Cost Efficiency: Competitive pricing with ±1% thickness tolerance to minimize material waste.
