
ANSI 316 316L 310S 904L Stainless Steel 2205 Round 304 420 Hollow Flat Bar
Chemical composition(WT%) (C) : ≤ 0.03 (Si) : ≤ 1.00 (Mn) : ≤ 2.00 (Cr) :16.0 to 18.0 (P) : ≤ 0.035 (S) : ≤ 0.030 (Ni) : 10.0 to 14.0 (Mo): 2.0 to 3.0 physical property tensile strength: ≥ 620MPa Yield strength: ≥ 310MPa Elongation:more than 30% Features: Mo is added to 316L stainless steel...
- Product Introduction
316L stainless steel bar is a premium low-carbon, molybdenum-enhanced austenitic alloy designed for extreme corrosion resistance in aggressive environments. Ideal for marine, chemical, and biomedical applications, it outperforms standard 304/316 grades with superior pitting resistance and weldability. Its unique composition ensures longevity in chloride-rich settings, making it indispensable for critical infrastructure and high-purity industries.
Global Standards & Certifications
| Region | Standard | Designation |
|---|---|---|
| USA | ASTM A276/A479 | UNS S31603 |
| Europe | EN 1.4404 | X2CrNiMo17-12-2 |
| China | GB/T 1220 | 022Cr17Ni12Mo2 |
| Japan | JIS SUS 316L | - |
| India | IS 6911 | SS316L |
Chemical Composition (Weight %)
| Element | Content | Role |
|---|---|---|
| Carbon (C) | ≤0.03% | Minimizes carbide precipitation during welding |
| Chromium (Cr) | 16.0–18.0% | Forms passive oxide layer for corrosion resistance |
| Nickel (Ni) | 10.0–14.0% | Stabilizes austenitic structure |
| Molybdenum (Mo) | 2.0–3.0% | Enhances pitting/crevice corrosion resistance |
| Manganese (Mn) | ≤2.0% | Improves hot workability |
| Silicon (Si) | ≤0.75% | High-temperature durability |
| Iron (Fe) | Balance | Base metal |
Mechanical & Physical Properties
Mechanical (ASTM A276)
Tensile Strength: 485–620 MPa
Yield Strength (0.2% Offset): ≥170 MPa
Elongation at Break: ≥40%
Hardness: ≤95 HRB (Annealed)
Modulus of Elasticity: 193 GPa
Physical
Density: 8.0 g/cm³
Melting Point: 1.370–1.400°C
Thermal Conductivity: 16.3 W/m·K (at 100°C)
Electrical Resistivity: 0.74 μΩ·m
Top 5 Industrial Advantages
Unmatched Corrosion Resistance:
Excels in chloride-heavy environments (seawater, chemical plants) and resists sulfuric/phosphoric acids.
Biocompatibility:
Meets ASTM F138/F139 standards for surgical implants and pharmaceutical equipment.
Weldability & Fabrication:
Low carbon content prevents sensitization; no post-weld heat treatment required.
Temperature Resilience:
Stable performance from -200°C (cryogenic) to 800°C (intermittent).
Sustainability:
100% recyclable with ≥50% recycled content; REACH and RoHS compliant.
Key Applications
| Industry | Typical Uses |
|---|---|
| Marine | Boat shafts, propeller fittings, offshore rigs |
| Chemical Processing | Reactor vessels, heat exchangers, pipelines |
| Medical | Surgical tools, implants, MRI components |
| Oil & Gas | Subsea valves, pump components, LNG storage |
| Food Production | Brewery tanks, saltwater processing equipment |
FAQs for Engineers & Procurement Teams
Q1: How does 316L differ from 316 stainless steel bars?
A: 316L has a lower carbon content (≤0.03% vs. 316's ≤0.08%), reducing carbide precipitation risk during welding. Ideal for welded assemblies in corrosive environments.
Q2: Is 316L suitable for coastal construction?
A: Yes, its molybdenum content provides exceptional resistance to saltwater-induced pitting and crevice corrosion.
Q3: Can 316L bars be heat-treated?
A: Austenitic grades like 316L cannot be hardened via heat treatment-cold working is used to enhance strength.
Why Partner With Us?
Certified Excellence: EN 10204 3.1/3.2 certifications, ISO 9001:2025 compliance.
Customization: Diameters 2mm–250mm, lengths up to 12m, and bespoke surface finishes (polished, pickled, or sandblasted).
Global Logistics: Guaranteed delivery within 18–30 days (FOB, CIF, DAP terms).
Technical Support: Free project consultation, including corrosion resistance modeling and CAD file optimization.
We have established a comprehensive pre-sales and after-sales service standards for our ANSI 316 316L 310S 904L Stainless Steel 2205 Round 304 420 Hollow Flat Bar. We guide the market with quality, impress customers with professionalism, and continue to consolidate and expand the domestic market. We have gathered a group of excellent scientific research, production and management talents representing the leading level of the industry, and created a team with high efficiency and rigor.Hot Tags: 316l stainless steel bar, China 316l stainless steel bar manufacturers, suppliers, factory, 321 stainless steel tubing, ss 202 vs ss 304, 201 Stainless Steel Rod, thickness 0.3mm stainless steel sheet, ss316l specification, 316 stainless steel data sheet
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