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Stainless Steel Round Bar Grade 303
Grade303SKUSS-303-BAR
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ISO 9001
Grade 303 represents the optimum in machinability among the austenitic stainless steels. It is primarily used when production involves extensive machining in automatic screw machines.
| Element | Min % | Max % |
|---|---|---|
| C | – | 0.15 |
| Mn | – | 2.0 |
| Si | – | 1.0 |
| P | – | 0.20 |
| S | – | 0.15 |
| Cr | 17.0 | 19.0 |
| Ni | 8.0 | 10.0 |
| Property | Value | Unit |
|---|---|---|
| Hardness HB | 262 max | – |
| Hardness HRC | 27 max | – |
| Standard | Grade |
|---|---|
| BS | 303S31 |
| AISI/SAE | 303 |
| Werkstoff | 1.4305 |
Stainless Steel Round Bar 303S31 (1.4305) Bright Drawn
| Dia (mm) | Weight per metre (kg) | Dia (in) | Weight per metre (kg) |
|---|---|---|---|
| 3mm | 0.06 | 1/8″ | 0.06 |
| 4mm | 0.10 | 3/16″ | 0.14 |
| 5mm | 0.16 | 1/4″ | 0.25 |
| 6mm | 0.22 | 5/16″ | 0.39 |
| 7mm | 0.30 | 3/8″ | 0.56 |
| 8mm | 0.40 | 7/16″ | 0.77 |
| 10mm | 0.62 | 1/2″ | 1.00 |
| 12mm | 0.89 | 9/16″ | 1.22 |
| 14mm | 1.22 | 5/8″ | 1.56 |
| 15mm | 1.40 | 11/16″ | 1.89 |
| 16mm | 1.59 | 3/4″ | 2.25 |
| 18mm | 2.01 | 7/8″ | 3.07 |
| 20mm | 2.48 | 1″ | 4.03 |
Stainless Steel Round Bar 303S31 (1.4305) Smooth Turned / Bright Ground
| Dia (mm) | Weight per metre (kg) | Dia (in) | Weight per metre (kg) |
|---|---|---|---|
| 25mm* | 3.88 | 1″ | 4.03 |
| 30mm* | 5.58 | 1 1/8 “ | 5.07 |
| 35mm | 7.60 | 1 1/4 “ | 6.25 |
| 40mm* | 9.93 | 1 3/8″ | 7.57 |
| 45mm | 12.56 | 1 1/2″ | 9.01 |
| 60mm | 22.30 | 1 5/8″ | 10.60 |
| 50mm* | 15.50 | 1 3/4″ | 12.20 |
Stainless Steel Round Bar 303S31 (1.4305) Rough Turned
| Dia (in) | Weight per metre (kg) | Dia (in) | Weight per metre (kg) |
|---|---|---|---|
| 3 1/4″ | 42.90 | 4 3/4″ | 91.70 |
| 3 1/2″ | 49.80 | 5″ | 102.00 |
| 3 3/4″ | 57.10 | 5 1/2″ | 123.00 |
| 4″ | 65.00 | 6″ | 146.00 |
| 4 1/4″ | 73.40 | 7″ | 199.00 |
| 4 1/2″ | 82.30 | - | - |
Stainless Steel Hexagon Bar 303S31
| Size (in) | Weight per metre (kg) | Size (in) | Weight per metre (kg) |
|---|---|---|---|
| .3125″ | 0.43 | 1.010″ | 4.50 |
| .324″ | 0.46 | 1.100″ | 5.35 |
| .375″ | 0.62 | 1.125″ | 5.59 |
| .437″ | 0.84 | 1.200″ | 6.36 |
| .500″ | 1.10 | 1.250″ | 6.90 |
| .525″ | 1.22 | 1.300″ | 7.46 |
| .562″ | 1.39 | 1.375″ | 8.35 |
| .600″ | 1.59 | 1.480″ | 9.67 |
| .625″ | 1.73 | 1.500″ | 9.93 |
| .710″ | 2.22 | 1.670″ | 12.30 |
| .750″ | 2.48 | 1.750″ | 13.50 |
| .812″ | 2.91 | 1.860″ | 15.30 |
| .820″ | 2.97 | 2.200″ | 21.40 |
| .875″ | 3.38 | 2.220″ | 21.80 |
| .920″ | 3.74 | 2.375″ | 24.90 |
| .9375″ | 3.88 | 2.500″ | 27.60 |
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