Low-carbon molybdenum austenitic stainless round bar for marine, chemical and pump shaft applications where pitting resistance is critical.
316L stainless steel round bar is the low-carbon version of 316, with 2 – 2.5 % molybdenum added. It offers superior pitting and crevice corrosion resistance over 304, especially in chloride and marine environments, and is the standard choice for pump shafts, fasteners and chemical equipment.
Key Advantages
Chemical Composition (AISI 316L)
| Element | C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| Content % | ≤ 0.030 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 2.50 |
Mechanical Properties (Annealed)
- Tensile strength (σb): ≥ 485 MPa
- Yield strength (σ0.2): ≥ 170 MPa
- Elongation (δ5): ≥ 40 %
- Hardness: ≤ HB 187 / ≤ HRB 90
Standard Sizes
| Parameter | Range |
|---|---|
| Diameter | 5.0 – 300 mm |
| Length | 2 – 6 m (cut to length) |
| Surface | Bright / peeled / ground / black forged |
| Tolerance | h9 / h11 / h14 on request |
| Standard | ASTM A276 / AISI 316L / EN 1.4404 |
Applications
316L round bar is used in marine shafts, pump and valve parts, fasteners, bolts, food processing equipment, heat exchangers and chemical vessels. For general-purpose round bar see our 304/316L round bar range; for flat sections see stainless flat bar.
Processing & Packaging
Cutting, centerless grinding, peeling, chamfering and CNC machining available. Bars are bundled, VCI-wrapped and strapped on wooden pallets.
Send diameter, length, surface finish and quantity — we confirm price within 24 hours.
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