Biodur® 108 is an essentially nickel-free austenitic stainless steel with many of the same properties of other stainless steels, such as the high corrosion resistance of 316LVM, and strength similar to spring temper 304 stainless steel.
| ASTM F2229 / UNS S29108 | |
| Composition | % (mass/mass) |
| Carbon | 0.08 max |
| Phosphorus | 0.03 max |
| Silicon | 0.75 max |
| Nickel | 0.05 max |
| Copper | 0.25 max |
| Iron | Balance |
| Manganese | 21.00 to 24.00 |
| Sulfur | 0.01 max |
| Chromium | 19.00 to 23.00 |
| Molybdenum | 0.50 to 1.50 |
| Nitrogen | 0.85 to 1.10 |
| Cobalt | <0.10 |
| Density | 7.64 g/cm³ [0.276 lb/in³] |
| Modulus of elasticity |
199.9 x 10³ MPa [29.0 x 10³ ksi] |
| Size | Tensile | Yield strength | Elongation % |
| 1.448 mm [0.057 in] | 1162 MPa [169 ksi] | 856 MPa [124 ksi] | 35.4 |
| 1.29 mm [0.0508 in] | 1569 MPa [228 ksi] | 1215 MPa [176 ksi] | 8.4 |
| 1.15 mm [0.0453 in] | 1914 MPa [278 ksi] | 1560 MPa [226 ksi] | 4.9 |
| 1.02 mm [0.0403 in] | 2149 MPa [312 ksi] | 1789 MPa [259 ksi] | 3.8 |
| 0.912 mm [0.0359 in] | 2318 MPa [336 ksi] | 2033 MPa [295 ksi] | 2.8 |
| 0.81 mm [0.032 in] | 2451 MPa [356 ksi] | 2206 MPa [320 ksi] | 2.4 |
| 0.72 mm [0.0285 in] | 2509 MPa [364 ksi] | 1891 MPa [274 ksi] | 3.2 |
*All data represent results from a 25.4 cm [10 in] gauge length using side action pneumatic grips.