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17-7PH Stainless steel Austenite Martensite Precipitation Hardening

17-7PH Stainless steel  Austenite Martensite Precipitation Hardening

Austenite Martensite Precipitation HardeniStainless steel 17-7PH
ng Stainless steel 17-7PH equal material : AISI631, SUS631, X7CrNi17-7, 1.4568, S17700
17-7PH is a 18-8CrNi based development of austenite Martensite Precipitation Hardening Stainless steel, also known as the control phase stainless steel. 17-7PH stainless steel after solid solution treatment of austenitic organization is unstable, there is toughness and processability, good after the adjustment, the austenite carbide precipitates phenological changes of components, through the martensitic transformation processing, most organizations into the toughness of low carbon tempering martensite, this state is the use of steel in the state, there is temperature and good mechanical properties.
Stainless steel 17-7PH chemical composition

C
Mn
Ni
Si
P
S
Cr
Al
≤0.09
≤1.00
6.50-7.75
≤1.00
≤0.035
≤0.030
16.00-18.00
0.75-1.50
Stainless steel 17-7PH mechanical property
Ultimate tensile strength σ B (MPa): solid solution, ≤ 1030 degree ageing; 565, ≥ 1140 degree ageing; 510, ≥ 1230
yield strength σ 0.2 (MPa): solid solution, ≤ 380 degree ageing; 565, ≥ 960 degree ageing; 510, ≥ 1030
Elongation δ 5 (%): solid solution, ≥ 20 degree ageing; 565, ≥ 5 degree ageing; 510, ≥ 4
Stainless steel 17-7PH physical property
17-7PH density: 7.67Kg/ m3
17-7PH Stainless steel melting temperature range: 1415 - 1450 degree
17-7PH Stainless steel common product exisiting form
Hot rod, forging bar, sheet, strip, casting, etc.
17-7PH Stainless steel application
1The engine thrust reverser component
2 valve membrane
3The stainless steel elastic element
4 compressor disk
5The container, pipe, spring etc.

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