Bearing in mind that SS 17-4 PHsteel plates stainless is a precipitation hardened steel, it should be applied after supersaturation and aging. In the delivery condition +A SS 17-4 PHsteel plates stainless, the SS 17-4 PHsteel plates stainless show no martensitic structure, resulting in significantly less corrosion resistance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | GOST | EN |
| SS 17-4 PH | 1.4542 | S17400 | SUS630 | ZZ6CNU17-O4 | – | – | X5CrNiCuNb16.4 |
Steel can be welded by TIG, but the welding process requires the use of an annealed material. Otherwise the material at the joints will not retain the proper structure. Furthermore, at the expense of a slight loss of corrosion resistance, the products can be nitrided to achieve a hardened topcoat.
Delivery condition H925
Tensile strength, Rm: >1170 MPa
Yield point, Rp0,2: >1070 MPa
Elongation, A: >10%
Przewężenie, Z: >44%
HB Hardness: >375
HRC Hardness: >38
Impact resistance, KV21℃: >6.8 J



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