Description
Compliance & International Standards
| Region | Certification | Grade Designation |
|---|
| USA | ASTM A484 | UNS S31600 |
| Europe | EN 10088-3 | X5CrNiMo17-12-2 |
| China | GB/T 4237 | 06Cr17Ni12Mo2 |
| Japan | JIS G4303 | SUS 316 |
| Gulf Cooperation | GSO 05-1023 | SS316 |
Material Composition & Functional Benefits
| Element | Content Range | Operational Impact |
|---|
| Molybdenum (Mo) | 2.0–3.0% | Neutralizes chlorides, prevents localized corrosion |
| Chromium (Cr) | 16.0–18.0% | Self-repairing oxide layer for passive protection |
| Nickel (Ni) | 10.0–14.0% | Maintains ductility at cryogenic temperatures |
| Carbon (C) | ≤0.08% | Balances weldability and strength |
| Nitrogen (N) | ≤0.10% | Enhances yield strength without sacrificing corrosion resistance |
Performance Metrics
Mechanical Properties (Per ASTM A276)
Tensile Strength: 515–690 MPa
Yield Strength: ≥205 MPa (0.2% offset)
Elongation: ≥40% in 50mm
Hardness: ≤90 HRB (Annealed State)
Impact Toughness: 120 J at -196°C (Cryogenic)
Physical Characteristics
Density: 8.0 g/cm³
Thermal Expansion: 16.0 μm/m·K (20–100°C)
Electrical Resistivity: 0.74 μΩ·m
Magnetic Permeability: <1.02 (Annealed)
5 Competitive Edges for Industrial Buyers
Corrosion Dominance:
Outperforms 304/316L in saltwater, sulfuric acid (up to 10% concentration), and paper bleaching environments.
Fabrication Flexibility:
Compatible with TIG/MIG welding, laser cutting, and CNC machining. Post-weld annealing optional for critical applications.
Temperature Versatility:
Stable from -200°C (LNG storage) to 925°C (intermittent furnace parts).
Surface Finish Options:
Mill finish, brushed (#4), mirror polish (#8), or electropolished for hygienic/optical uses.
Sustainability Alignment:
75% recycled content; compliant with ISO 14064 carbon footprint standards.
Industry-Specific Solutions
| Sector | Critical Applications |
|---|
| Shipbuilding | Hull reinforcements, ballast systems |
| Petrochemical | Reactor cladding, flare stack components |
| Architecture | Coastal facades, corrosion-resistant fasteners |
| Medical | Sterilization trays, non-magnetic MRI fixtures |
| Energy | Geothermal piping, nuclear coolant channels |
Procurement & Engineering FAQs
Q1: How does 316 differ from duplex stainless steel flat bars?
A: While duplex grades (e.g., 2205) offer higher strength, 316 provides better formability and weldability. Choose 316 for complex fabrications in moderately corrosive settings.
Q2: Can 316 flat bars be used in seawater immersion?
A: Yes, but ensure regular cleaning to prevent marine biofilm buildup. For permanent submersion, pair with cathodic protection.
Strategic Partnership Benefits
Certified Supply Chain:
NORSOK M650-approved mills with full heat code traceability.
Customization:
Thickness: 1mm–50mm | Width: 10mm–600mm | Length: 1m–6m (±0.05mm precision).
Keywords: 316 stainless steel flat bar Supplier, Molybdenum Alloy, ASTM S31600. High-Temperature Steel, Marine-Grade Flat Bar
