17-7 is a precipitation hardenable stainless steel. It develops its strength and hardness through heat treating.
This makes it well suited for applications that require good formability, high strength/hardness and minimum distortion upon heat treating. 17/7 stainless steel also provides benefits for other applications requiring high strength and good corrosion resistance, as well as excellent properties for flat springs at temperatures up to 315°C (600°F).
Related Products
Technical specification
Related Specifications
AMS 5528
AMS 5529
Mil S 25043
UNS S17700
Specific Gravity
7.81 g/cm3
Chemical Composition (WT %)
Min
Max
C
-
0.09
Mn
-
1.00
P
-
0.040
S
-
0.030
Si
-
1.00
Ch
16.00
18.00
Ni
6.50
7.75
AI
0.75
1.50
Cr
16
18
Fe
Bal
-
Typical Mechanical Properties in the Annealed Condition
Min
Max
0.2% Proof Stress
MPA
1035
-
Tensile Strength
MPA
1241
1448
Elongation
%
4
6
Hardness
HRC
38
46

Need more information? Get in touch