304 stainless steel is an austenitic stainless steel alloy that is widely used in various applications due to its excellent corrosion resistance, good mechanical properties and high temperature resistance. 304 stainless steel round bar is a common product made from this alloy. Stainless steel round bar (rough round) can be applied to: metal products, rail transportation, nuclear power, machinery manufacturing, chemical equipment, pressure vessels.
| Type | SIZES in milimeter | SIZES in inches | Tolerance |
|---|---|---|---|
| Peeled and Polished | 40.00-150.00 | 1.50-6.00 | h11,h11-DIN 1013 |
| Cold Drawn and Polish | 3.00 to 75.00 | 1/8 to 3.00 | h8 to h11 |
| Cold Drawn and Ground | 10.00 to 75.00 | 5/6 to 2.50 | h8 to h11 |
| Peeled and Ground | 20.00-50.00 | 3/4-2.00 | h9 to h11 |
| Grade | Carbon | Manganese | Silicon | Sulfur | Phosphorus | Chromium | Nickel | Molybdenum |
|---|---|---|---|---|---|---|---|---|
| 304 | 0.08 max | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 18.0-20.0 | 8.0-11.0 | - |
| 316 | 0.08 max | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
| 317L | 0.035 max | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 18.0-20.0 | 11.0-14.0 | 3.0-4.0 |
| 310S | 0.08 max | 2.00 max | 0.75 max | 0.030 max | 0.045 max | 24.0-26.0 | 19.0-22.0 | 3.0-4.0 |
| Condition | Cold drawn & polished | Cold drawn, centreless ground & polished | Cold drawn, centreless ground & polished (strain hardened) |
|---|---|---|---|
| Grades | 201, 202, 303, 304, 304L, 310, 316, 316L, 321, 410, 420, 416, 430, 431, 430f & others | 304, 304L, 316, 316L | |
| Diameter | 2 mm to 5mm (1/8" to 3/16") | 6mm to 22m (1/4" to 7/8") | 10mm to 40mm (3/8" to 1-1/2") |
| Tolerance | H9, H11 ASTM A484 | H9 ASTM A484 | H9, H11 ASTM A484 |
| Density | Melting Point | Tensile Strength | Yield Strength | Elongation |
|---|---|---|---|---|
| 8.0 g/cm3 | 1400 °C (2550 °F) | 75000 Psi / 515 MPa | 30000 Psi / 205 MPa | 35% |