REX-734
Implant alloy with high requirements as to corrosion resistance and fatigue resistance. Austenitic stainless steel with excellent corrosion resistance combined with good mechanical properties.
Main fields of application of alloy REX-734
Production of surgical implants – replacement for hip, knee, shoulder, marrow-nails as well for devices for osteosynthesis.
Chemical composition of alloy REX-734
| C | ≤ 0,08 | Mo | 2 - 3 |
|---|---|---|---|
| Si | ≤ 0,75 | Ni | 9 - 11 |
| Mn | 2 - 4,25 | Nb | 0,25 - 0,8 |
| P | ≤ 0,025 | N | 0,25 - 0,5 |
| S | ≤ 0,010 | Cu | ≤ 0,25 |
| Cr | 19.5 | Fe | rest |
Mechanical properties of REX-734
| annealed | specification values (bars) |
|---|---|
| tensile strength Rm | ≥ 740 MPa |
| elongation A | ≥ 35% |
| precipitation hardened | specification values (bars) |
| tensile strength Rm | ≥ 1060 MPa |
| elongation A | ≥ 12% |