1.4542 stainless steel
Martensitic precipitation hardening steel, niobium-stabilised, with very good yield strength properties (1.4542)
| Abbreviation | X5CrNiCuNb16-4 |
| US Standard (AISI) | 630 |
| Composition Alloy elements [%] | C: 0 - 0.07 Cr: 15.00 - 17.00 Cu: 3.00 - 5.00 Mn: 0 - 1.50 Mo: 0 - 0.60 Ni: 3.00 - 5.00 P: 0 - 0.04 S: 0 - 0.015 (0.030*) Si: 0 - 0.70 Nb: 5 x C - 0.45 Remainder: Fe |
| Stainless steel grade | C3 |
| Density [g/cm³] | 7.8 |
| Nickel migration [µg/(cm² x week)] in artificial sweat (pH4.5) | <0,05 |
Yield point | ≥1000 |
| Tensile strength Rm [N/mm²] | ≥1270 |
| Corrosion resistance | good Resistant to all natural environmental conditions and stagnant seawater |
| Machinability | medium - poor |
| Weldability | good |
| Other properties | Martensitic-ferromagnetic structure of particular strength after precipitation hardening Mechanical polishing unsatisfactory Electropolishability: medium May be used from -50 - 450°C |
| Main applications | 1.4542 is used when high strength and good corrosion resistance are required at the same time: screws spindels, axles hub discs equipment for shipbuilding, offshore applications aerospace offshore applications |
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