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Industrial-Grade Stainless Steel Coil– Mirror Finish & Durable
Industrial-Grade Stainless Steel Coil– Mirror Finish & Durable
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Grade 201/304/316/316L/430 Stainless Steel Product Details
Technical Specifications
Material Grades & Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HBW) | Elongation (%) | Surface Finish Options |
|---|---|---|---|---|---|
| 201 | 520–780 | ≥275 | ≤250 | ≥40 | Mirror, Hairline, 2B, BA |
| 304 | 515–1035 | ≥205 | ≤201 | ≥40 | Polished, No.4, 8K Mirror |
| 316 | 515–690 | ≥170 | ≤217 | ≥40 | Cold Rolled, 2B, Hairline |
| 316L | 485–620 | ≥170 | ≤187 | ≥40 | Electrolytic Polished, Satin |
| 430 | 450–600 | ≥206 | ≤183 | ≥22 | Bead Blasted, Titanium Coated |
Dimensions & Processing
| Thickness (mm) | Width (mm) | Length (mm) | Edge Type | Tolerance | Key Applications |
|---|---|---|---|---|---|
| 0.1–3 (Cold) | 600–2000 | 2000–12000 | Slit, Mill | ±0.02–0.1mm | Stainless Steel Coil stock, Architectural Panels |
| 3–100 (Hot) | 1000–2150 | 6000–12000 | Sheared | ±1%–3% | Stainless steel tubing coils, Industrial Tanks |
Extended Technical Insights
Tensile & Bending Strength
Grade 304 exhibits a tensile strength range of 515–1035 MPa, ideal for structural components like beams and chemical tanks. Its cold-rolled variants achieve higher strength through work hardening, while Grade 316L (485–620 MPa) prioritizes corrosion resistance in chloride-rich environments like marine applications. For stainless steel heating coils, post-rolling annealing ensures ductility while maintaining thermal stability.
Bending strength correlates with material ductility. Austenitic grades (304/316) allow 180° bends without cracking, whereas ferritic Grade 430 requires controlled forming to avoid brittleness.
Identification Methods
- Chemical Analysis: XRF testing verifies chromium (≥10.5%), nickel (8–12% for 304), and molybdenum (2–3% for 316).
- Magnetism: Austenitic grades (304/316) are non-magnetic; slight magnetism may occur after cold working.
- Surface Marking: Laser-etched labels (e.g., "ASTM A240") or color-coded edges for traceability.
Weight Calculation Formula
Weight (kg) = Thickness (mm) × Width (m) × Length (m) × Density (7.93 g/cm³ for 304/316; 7.75 g/cm³ for 430).
Example: A 2mm × 1m × 2m Stainless Steel Coil stock weighs:
2 × 1 × 2 × 7.93 = 31.72 kg.
Why Does Stainless Steel Rust?
Despite its corrosion resistance, rust can occur under:
- Chloride Exposure: Coastal environments or de-icing salts accelerate pitting in 304 (vs. 316L's superior resistance).
- Surface Contamination: Organic residues (grease, iron particles) create galvanic cells, breaching the passive chromium oxide layer.
- Mechanical Damage: Scratches or weld zones reduce chromium concentration, weakening protection.
- Improper Cleaning: Harsh abrasives degrade finishes like Mirror or Hairline.
Why Choose Our Stainless Steel?
- Certified Quality: Compliance with ASTM, EN, JIS, and ISO 9001 standards, backed by third-party SGS inspections.
- Customization: Tailor thickness (0.01–100mm), width (up to 2150mm), and surface finishes (Polished, Hairline, PVD-coated).
- Rapid Delivery: 15,000+ tons of Stainless Steel Coil stock ready for immediate shipment, with 7–15-day global logistics.
- Versatility: Optimized for stainless steel heating coils (high-temperature stability) and stainless steel tubing coils (pressure resistance).
- Sustainability: 100% recyclable materials align with eco-friendly manufacturing practices.
