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Durable Stainless Steel Coil – 316L Cold Rolled

Durable Stainless Steel Coil – 316L Cold Rolled

$1,800.00 SGD
$1,800.00 SGD
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Premium 316L Cold Rolled Stainless Steel Coil: Unmatched Durability & Precision

Product Overview

stainless steel coil 316L is an austenitic low-carbon alloy renowned for exceptional corrosion resistance, elevated temperature strength, and superior formability. Enhanced with 2-3% molybdenum, it outperforms standard 304 stainless steel in chloride-rich environments (e.g., marine, chemical processing). Ideal for stainless steel tube coil and structural applications, our coils combine prime-grade metallurgy with precision cold-rolling for flawless surface integrity.

 

Technical Specifications

Table 1: Core Dimensions & Standards
Parameter Specification Standard Tolerance
Thickness 0.15 mm – 5.0 mm ±0.01 mm
Width 650 mm – 1,550 mm ±0.02 mm
Coil ID 508 mm / 610 mm N/A
Surface Finish 2B, BA, No.4, HL, Mirror, Hairline Customizable
Standards ASTM, EN, JIS, DIN, GB, ASME Full Compliance
Table 2: Mechanical & Physical Properties
Property Value Test Method
Tensile Strength ≥480 MPa ASTM A240
Yield Strength ≥175 MPa ASTM A240
Elongation ≥40% ISO 6892-1
Hardness (HV) ≤200 ASTM E92
Density 7.98 g/cm³ ISO 1183
Melting Point 1,371°C – 1,421°C
Table 3: Chemical Composition (%)
Element C Cr Ni Mo Mn
Content ≤0.03 16.0–18.0 10.0–14.0 2.00–3.00 ≤2.00
Other: Si ≤1.00, P ≤0.045, S ≤0.030

Detailed Technical Insights

  1. Tensile Strength & Bending Performance

    • Tensile Strength (≥480 MPa): Ensures structural resilience under high-stress loads. The addition of molybdenum enhances creep resistance, making it suitable for heat exchangers and pressure vessels.
    • Bending Strength: Exhibits excellent ductility (≥40% elongation), allowing cold-forming into complex shapes without cracking. Optimal for architectural cladding and stainless steel coil siding nails.

  2. Material Identification & Traceability

    • Coils are laser-marked with:
      • Grade (316L/1.4404)
      • Heat number
      • Mill code
      • Thickness/Width
    • Complies with ISO 10474 3.1/3.2 certifications for full traceability
      .

  3. Weight Calculation Formula

    Weight (kg) = Thickness (mm) × Width (m) × Length (m) × Density (7.98 g/cm³)

    Example: 1.0 mm × 1.2 m × 300 m × 7.98 = 2,872.8 kg/coil.

  4. Why Stainless Steel Rusts: Causes & Prevention
    Despite inherent corrosion resistance, rust can occur due to:

    • Chloride Exposure: Prolonged contact with seawater or de-icing salts causes pitting. 316L’s Mo content mitigates this.
    • Mechanical Damage: Scratches or tool marks compromise the passive chromium oxide layer.
    • Intergranular Corrosion: In welding, carbide precipitation at grain boundaries is avoided by 316L’s low carbon content (≤0.03%).
    • Galvanic Corrosion: Contact with dissimilar metals (e.g., carbon steel) in electrolytes. Insulate joints with non-conductive gaskets.

Applications Across Industries

  • Construction: Roofing, façades, structural supports.
  • Medical & Food Processing: Surgical tools, tanks, hygienic surfaces.
  • Marine & Chemical: Heat exchangers, seawater pipelines.
  • Industrial Hardware: stainless steel coil siding nails, fasteners, valves.

Why Choose Our Stainless Steel?

Five Pillars of Excellence

  1. Prime-Grade Sourcing: Direct partnerships with mills like BAOSTEEL, TISCO, and POSCO ensure metallurgical consistency.
  2. Precision Processing: Cold-rolled under controlled annealing for ≤200 HV hardness and optimal surface gloss (Ra ≤0.2 µm).
  3. Global Compliance: Certified to ASTM, EN, ISO, and RoHS standards.
  4. Sustainable Lifecycle: 100% recyclable with ≤10% scrap rate during fabrication.
  5. Logistics Assurance: 15-day lead time, FOB/CFR/CIF terms, and seaworthy packaging (wooden pallets + waterproof film).
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