The material is the most widely used of all the precipitation-hardening stainless steels. Its valuable combination of acid and corrosion resistance and strength as well, gives designers opportunities to get prototypes or production parts in the following fields: plant engineering, automotive industry, medical technology and components for moulds.
Materials
Precipitation hardening stainless steel 17-4 PH
Range of application
Technical data after recommended heat treatment
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1 Preliminary values according to ASTM A564/A564M-13 UNS S17400. 2 Preliminary values subject to change or update. |
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| Yield Point Rp0,21 | 1170 N/mm2 |
| Tensile Strength Rm1 | 1310 N/mm2 |
| Elongation A 1 | 10 % |
| Thermal conductivity λ2 | 16 Wm/k |
| Hardness 1 | 388 HB |
Heat treatment
Solution annealed at temperatures of 1025 – 1055 °C, followed by a rapid cooling down in water, air or oil. Heat up to 480 °C and maintain temperature for 1 hour. Subsequently allow the component cooling down at ambient atmosphere.
Chemical Composition
COMPONENT INDICATIVE VALUE (%)
Fe Balance
C 0 – 0,07
Mg 0 – 1,00
P 0 – 0,04
S 0 – 0,03
Si 0 – 1,00
Cr 15,00 – 17,50
Ni 3,00 – 5,00
Cu 3,00 – 5,00
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