17-7ph(S17700、S51770、07Cr17Ni7Al、W.Nr.1.4568、SUS631)
1.Composition(wt%):
|
C
|
Cr
|
Ni
|
Si
|
Mn
|
P
|
S
|
Al
|
|
≤0.09
|
16.0-18.0
|
6.5-7.75
|
≤1.0
|
≤1.0
|
≤0.04
|
≤0.03
|
0.75-1.5
|
2.Physical Properties
|
Density (g/cm3)
|
Melting point（℃）
|
|
7.65
|
1415-1450
|
3. Properties:
|
condition
|
бb/N/mm2
|
б0.2/N/mm2
|
δ5/%
|
ψ
|
HRW
|
|
Solution treatment
|
≤1030
|
≤380
|
20
|
－
|
≤229
|
|
Precipitation
hardening
|
510℃
ageing
|
1230
|
1030
|
4
|
10
|
≥383
|
|
565℃
ageing
|
1140
|
960
|
5
|
25
|
≥363
|
4.Characteristics:
High stress of the oceanic and atmospheric corrosion resistance properties.
5.Applications:
Mainly used in aerospace, aircraft parts. |
