303 Stainless Steel Round Bar
303 round bar is a free cutting stainless steel used in applications where easy cutting and high surface finish are the main requirements.303 is a free cutting stainless steel containing sulphur and selenium respectively, used in applications where easy cutting and high surface finish are the main requirements.303 stainless steel improves cutting performance and resistance to high temperature bonding. It is most suitable for automatic lathes. Bolts and nuts.
303 steel round bar chemical composition
| Element | Percentage |
| C | 0.15 max |
| Fe | 69 |
| Mn | 2 max |
| Mo | 0.6 max |
| Ni | 9 |
| P | 0.2 max |
| S | 0.15 max |
| Si | 1 max |
| Cr | 18 |
303 round stock steel mechanical property
| Imperial | Metric | |
| Density | 0.289 lb/in3 | 8.0 g/cc |
| Ultimate Tensile Strength | 89,900psi | 620 MPa |
| Yield Tensile Strength | 34,800psi | 240 MPa |
| Fatigue Strength | 34,800psi | 240 MPa |
| Melting Point | 2,550 - 2,590°F | 1,400 - 1,420°C |
| Hardness Rockwell C | 19 |
| Hardness Rockwell B | 96 |
| Hardness Knoop | 251 |
| Hardness Brinell | 228 |
303 round bar stock steel available sizes
| Size | Length | Weight (lbs/ft) |
| 1/8" | 144.00" | 0.041 |
| 3/16" | 144.00" | 0.093 |
| 1/4" | 144.00" | 0.167 |
| 5/16" | 144.00" | 0.261 |
| 3/8" | 144.00" | 0.375 |
| 7/16" | 144.00" | 0.511 |
| 1/2" | 144.00" | 0.668 |
| 5/8" | 144.00" | 1.040 |
| 3/4" | 144.00" | 1.500 |
| 7/8" | 144.00" | 2.040 |
| 15/16" | 144.00" | 2.349 |
| 1" | 144.00" | 2.670 |
| 1-1/8" | 144.00" | 3.380 |
| 1-1/4" | 144.00" | 4.170 |
| 1-1/2" | 144.00" | 6.000 |
| 2" | 144.00" | 10.680 |
| 2-1/2" | 144.00" | 16.690 |
303 solid steel round bar product details
303 stainless steel is austenitic type easy cutting stainless steel wear-resistant acid steel, in order to improve the performance of the steel, can be added to the steel not more than 0.60% of molybdenum, can be resistant to ablative corrosion, good cutting products and resistance to burning. Corrosion resistance.303 stainless steel mechanical properties after annealing stress relief, tensile 515MPa, yield 205MPa, elongation 40%. Stainless steel 303 standard hardness HRB 90-100, HRC 20-25, note: HRB100 = HRC20.
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