Industrial-Grade 201/430 Stainless Steel Coil | Hairline Precision

Technical Specifications

Engineered for durability in harsh industrial environments

Performance & Applications

1. Mechanical Strength & Formability

Our stainless steel heating coil delivers exceptional tensile strength (620–850 MPa for 201 and 450–600 MPa for 430), making it ideal for load-bearing structures and high-pressure systems. The 201 grade’s work-hardening properties allow bends up to 90° without cracking, while 430’s ductility suits deep-drawn components like 1 inch stainless steel tubing coil for hydraulic systems.

2. Corrosion Resistance

• 201 Stainless: Combines chromium (16–18%) and manganese (5.5–7.5%) for moderate resistance to atmospheric corrosion. Ideal for indoor applications like decorative panels.
• 430 Stainless: With 16–18% chromium and near-zero nickel, it resists nitric acid and organic contaminants, perfect for stainless steel coil heat exchanger components in chemical processing.

3. Weight Calculation

Use the formula for precise planning:
$\text{Weight (kg/m)}=\text{Thickness (mm)}\times \text{Width (m)}\times 7.93(\text{Density for 201})\text{or}7.75(\text{Density for 430})$
Example: A 2mm x 1000mm x 1000mm 201 coil ≈ 15.86 kg.

4. Identification & Traceability

• Laser Etching: ASTM/JIS grades, heat number, and mill code.
• Certification: MTC with ISO 9001, RoHS, and third-party chemical analysis.

Why Stainless Steel Rusts?

Understanding material limitations ensures longevity
Even premium grades can corrode under specific conditions:

1. Galvanic Corrosion: Contact with carbon steel or copper in humid environments creates electrochemical reactions.
2. Chloride Exposure: Coastal or de-icing salt environments degrade 201’s passive layer faster than 430.
3. Surface Contamination: Oil residues or welding splatter disrupt the oxide layer, accelerating oxidation.
4. Thermal Stress: Repeated heating/cooling cycles above 300°C induce micro-cracks in 430 stainless.

Prevention Strategies:

• Use 430 for high-humidity zones; opt for 201 in dry, indoor settings.
• Apply passivation treatments post-fabrication.
• Avoid abrasive cleaners – use pH-neutral solutions.

Key Applications

Our coils excel in:

• HVAC Systems: Stainless steel coil heat exchanger cores for corrosion-resistant heat transfer.
• Automotive Exhausts: 430’s thermal fatigue resistance suits mufflers and tailpipes.
• Food Processing: 201’s polished hairline finish meets hygienic surface standards.
• Architectural Cladding: 1 inch stainless steel tubing coil for railings and structural supports.

Why Choose Us?

1. Certified Excellence

   • ISO 9001, RoHS, and TUV-certified production lines.
   • Batch-tested for chemical composition (XRF) and mechanical properties.

2. Custom Solutions

   • Tailored widths (300–1500mm), thicknesses (0.2–5mm), and surface finishes (No.4 to Mirror).
   • Precision slitting for stainless steel heating coil with ±0.1mm tolerance.

3. Global Logistics Network

   • 30,000-ton annual capacity with 20-day lead time.
   • FOB/CIF terms supported; seaworthy wooden crates for corrosion protection.

4. Technical Partnership

   • Free metallurgical consulting on weldability (TIG/MIG for 201; spot welding for 430).
   • Lifetime anti-corrosion maintenance guidelines.