316 Stainless Steel Flat Bar
Our 316 Stainless Steel Flat Bars are made from a high-grade stainless steel alloy that includes molybdenum, enhancing their resistance to chlorides and other corrosive agents. This feature makes them particularly valuable in harsh environments such as marine, chemical, and food-processing industries. With smooth, polished surfaces and precision-cut dimensions, these flat bars are ideal for welding, fabrication, and machining. Available in various thicknesses and lengths, our 316 Stainless Steel Flat Bars are perfect for a range of applications, from structural supports to decorative elements. Whether you are looking for a material that withstands high temperatures or one that resists chemical corrosion, this flat bar delivers exceptional performance and long-lasting durability.
- Product Introduction
316 stainless steel flat bar delivers unparalleled performance in corrosive and high-temperature environments. With molybdenum-enhanced chemistry, it resists chloride-induced pitting, acidic erosion, and stress cracking, making it the gold standard for marine, chemical, and aerospace applications. Its versatility spans structural, aesthetic, and precision engineering needs, ensuring reliability where standard alloys fail.
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).
Logistics:
15-day lead time for EU/NA orders; JIT delivery for contracts >50 tons.
Value-Added Services:
Laser marking, protective film coating, and custom bundling.
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