1.4568 / 1.4564 / 17-7 PH®
Standards
Mat. No.
1.4568 / 1.4564
EU
X7CrNiAl17-7
AISI/ASTM
631
UNS
S17700
Other
17-7 PH®
1.4568 is a chromium-nickel stainless steel group with the addition of aluminum.
It has excellent fatigue strength, corrosion resistance, easy formability, and minimal distortion during heat treatment. It can be easily shaped in annealed conditions and its strength can be significantly increased with CH900, RH950, or TH1050 heat treatment conditions. °It exhibits good strength up to C.
Chemical Composition & Mechanical and Physical Properties
Cr %
16.00-18.00
Ni%
6.50-7.75
Mo %
2.00-3.00
Al %
0.75-1.50
Cond. A
Çekme Mukavemeti MPa
825
Akma Mukavemeti MPa
345
Sertlik HRC
HRB 85
TH 1050
Çekme Mukavemeti MPa
1205
Akma Mukavemeti MPa
1205
Sertlik HRC
42
RH 950
Çekme Mukavemeti MPa
1550
Akma Mukavemeti MPa
1380
Sertlik HRC
47
CH 900
Çekme Mukavemeti MPa
1655
Akma Mukavemeti MPa
1585
Sertlik HRC
-
Annealing process (Solution Heat Treated, Con.A) 1038 °It is made of C
CH900; cold drawing process applied before aging treatment.
Application areas
In the Aerospace Industry, Defense Industry, applications requiring high corrosion resistance and strength, valve components, nuclear reactor components, jet engine parts.
Specifications
AMS 5528 Sheet, Strip and Plate
AMS 5529 Sheet andStrip, Cold Rolled
AMS 5568 Welded Tubing
AMS 5644 Bars and Forgings
AMS 5678 Wire
AMS 5824 WeldingWire
ASTM A 313 SpringWire
ASTM A 564 Bar, Wire, and Shapes
ASME SA 564 Bar, Wire and Shapes
ASTM A 579 Forgings
ASTM A 693 Plate, Sheet and Strip
ASME SA 693 Plate, Sheet and Strip
ASTM A 705 Forgings
ASME SA 705