Similar grade:
GB/T | UNS | AISI/ASTM | JIS | W.Nr |
05Cr17Ni4Cu4Nb | S17400 | 630,17-4PH | SUS630 | 1.4542 |
chemical composition:
alloys | % | Ni | Cr | Fe | C | Mn | Si | S | Cu | Nb | P |
17-4PH | min | 3 | 15.5 | margin | 3 | 0.15 | |||||
max | 5 | 17.5 | 0.07 | 1 | 1 | 0.03 | 5 | 0.45 | 0.035 |
Physical properties
density | 7.78/cm3 |
Melting point | 1400-1440 ℃ |
Mechanical properties of alloys at normal temperature
Heat Treatment Process | Tensile Strength | Yield Strength | Elongation | HRC(HBS) |
480℃ | ≥1310 | ≥1180 | ≥10 | ≥40 |
550℃ | ≥1060 | ≥1000 | ≥12 | ≥35 |
580℃ | ≥1000 | ≥865 | ≥13 | ≥31 |
620℃ | ≥930 | ≥325 | ≥16 | ≥28 |
17-4PH alloy characteristics:
High strength, hardness, good weldability and corrosion resistance.
17-4PH application areas:
Used for high-strength parts with certain corrosion resistance requirements.