China Stainless Steel Coil | Premium Quality 304/316 SS Coils

China Stainless Steel Coil | Premium Quality 304/316 SS Coils

​Product Specifications

​Technical Attributes & Manufacturing Process

Cold/Hot Rolling Technique: Our ​china stainless steel coil undergoes precision cold rolling for ultra-thin gauges (0.1–3mm) with ±0.01mm tolerance, ensuring uniformity for ​stainless steel coil tubing applications. Hot-rolled coils (3–50mm) are optimized for structural durability in heavy-duty environments.

Surface Treatment: Electrolytic polishing and passivation enhance corrosion resistance, critical for ​applications of stainless steel coils in marine, chemical, and food processing industries.

Edge Precision: Mill edges or slit edges are tailored for welding, bending, and decoiling, reducing material waste in fabrication.

​Mechanical & Functional Properties

Tensile Strength:
The ​304 stainless steel coil achieves 520 MPa tensile strength, ideal for load-bearing components like automotive frames and architectural supports. ​316 SS coils excel in high-stress environments (580 MPa), such as offshore platforms and chemical reactors, due to added molybdenum for pitting resistance.

Bend Strength:
With elongation rates exceeding 40%, our coils withstand repeated bending without cracking, making them suitable for HVAC ducting, kitchenware molding, and medical equipment.

Weight Calculation:
Use the formula:
$\text{Weight (kg)}=\text{Thickness (mm)}\times \text{Width (m)}\times \text{Length (m)}\times 7.93(\text{Density of SS})$
Custom lengths (1–6m) and widths reduce on-site cutting costs.

Identification Marking:
Coils are laser-etched with grade (e.g., SUS304), thickness, batch number, and compliance standards (ASTM/EN) for traceability.

​Why Stainless Steel Coils Rust?

Despite their corrosion resistance, improper handling or environmental factors can compromise ​china stainless steel coil integrity:

1. ​Chloride Exposure: Coastal or industrial areas with airborne salt/chlorides penetrate the chromium oxide layer, causing pitting corrosion.
2. ​Mechanical Damage: Scratches from abrasive tools (e.g., steel wool) expose raw metal to oxidation.
3. ​Galvanic Corrosion: Direct contact with carbon steel or copper in humid conditions triggers electrochemical degradation.
   

Preventive Measures:

• Use ​316L stainless steel coil for high-chloride environments.
• Apply passivation treatments post-fabrication to restore the oxide layer.
• Avoid acidic cleaners (e.g., bleach) and opt for pH-neutral solutions.

​Applications of Stainless Steel Coils

Our ​china stainless steel coil serves diverse industries:

1. ​Architecture: Elevator panels, handrails, and roofing (2B/HL finishes for aesthetics).
2. ​Food & Beverage: Hygienic ​stainless steel coil tubing for brewing tanks, conveyor belts, and dairy equipment.
3. ​Medical: Surgical instruments and MRI components (316L’s biocompatibility).
4. ​Energy: Heat exchangers, nuclear reactor liners, and solar panel frames.
5. ​Transportation: Marine-grade hulls, aircraft exhausts, and railway carriage cladding.

​Why Choose Our Stainless Steel Coils?

1. ​Superior Material Integrity: 18-20% chromium and 8-12% nickel content ensure lasting corrosion resistance.
2. ​Certified Quality: ISO 9001 and SGS audits guarantee compliance with ASTM/EN standards.
3. ​Custom Solutions: Tailored dimensions (0.1–50mm), surface finishes, and bulk discounts (MOQ: 1 ton).
4. ​Fast Global Delivery: 15-day turnaround for standard orders, backed by real-time logistics tracking.
5. ​Technical Support: 24/7 engineering assistance for welding, bending, and corrosion-prevention strategies.