Stainless Steel 316 Round Bar (UNS S31600)
Stainless Steel 316 Round Bar (UNS S31600) is a molybdenum-bearing austenitic stainless steel known for its superior corrosion resistance, especially in chloride and marine environments. The addition of molybdenum significantly improves resistance to pitting and crevice corrosion compared to SS 304. UNS S31600 round bars also provide excellent mechanical strength, good weldability, and reliable performance at elevated temperatures, making them ideal for demanding industrial and chemical applications.
Key Features
- Excellent resistance to pitting and crevice corrosion
- Molybdenum addition for enhanced chemical resistance
- Good strength and toughness at high and low temperatures
- Excellent weldability and formability
- Non-magnetic in annealed condition
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM | 316 |
| EN | 1.4401 |
| DIN | X5CrNiMo17-12-2 |
| JIS | SUS 316 |
| AFNOR | Z6CND17-11-02 |
Sizes
| Diameter Range | Length |
|---|---|
| 3 mm to 500 mm | 3 m, 6 m, or Custom Cut Lengths |
316 Round Bar Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
SS 316 Round Bar Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2% Proof) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
Stainless Steel 316 Round Bar Physical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1375 – 1400°C |
| Thermal Conductivity | 16.3 W/m·K |
| Electrical Resistivity | 0.74 µΩ·m |
| Modulus of Elasticity | 193 GPa |
Types of SS 316 Round Bars
- Hot Rolled Round Bar
- Cold Drawn Round Bar
- Bright Bar
- Forged Round Bar
- Centerless Ground / Polished Round Bar
Applications
- Chemical and petrochemical processing equipment
- Marine and offshore components
- Pharmaceutical and food processing industries
- Heat exchangers and pressure vessels
- Valves, pumps, and fasteners
- Architectural and structural applications
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