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S17700 Austenite Martensite Precipitation Hardening Stainless steel

S17700 Austenite Martensite Precipitation Hardening Stainless steel

Austenite Martensite Precipitation Hardening Stainless steel S17700
Stainless steel S17700 equal material: AISI 631, 17-7PH, X7CrNi17-7, 1.4568, SUS631

S17700 is a 18-8CrNi based development of austenite Martensite Precipitation Hardening Stainless steel, also known as the control phase stainless steel. S17700 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. S17700 corrosion resistance superior to that of general martensitic stainless steel.

Stainless steel S17700 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 S17700 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 S17700 physical property
S17700 density: 7.67Kg/ m3
S17700 Stainless steel melting temperature range: 1415 - 1450 degree
S17700 Stainless steel common product exisiting form
Hot rod, forging bar, sheet, strip, casting, etc.

S17700 Stainless steel application
1.The engine thrust reverser component
2. valve membrane
3.The stainless steel elastic element
4 compressor disk
5The container, pipe, spring etc.

 

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