17-4PH Stainless Steel

17-4PH

Description

17-4 is a precipitation hardenable stainless and can be supplied single melted (AMS 5643) or Vacuum Arc Remelted (AMS 5622). It is a medium to high strength material achieved through appropriate ageing treatments (see table below). It also has good corrosion resistant properties.

Specific Gravity

7.74 g/cm3

Typical Applications

Related Specifications

Motor Shafts

Aircraft Structural Parts

Valve Stems

Gears

AMS 5604

AMS 5622

AMS 5643

UNS S17400

W.Nr 1.4548

Chemical Composition (Wt %)

  C Si Mn P S Cr Mo Ni Cb Cu Fe
Min - - - - - 15.00 - 3.00 5 x %C 3.00 Bal
Max 0.07 1.00 1.00 0.040 0.030 17.50 0.50 5.00 0.45 5.00 -

Typical Mechanical Properties

  0.2% Proof Stress Tensile Strength Elongation Reduction of area Hardness
  MPA MPA % % HB
  Min Min Min Min Min Max
      L T L T  
H900 1172 1310 10 6 35 20 388 444
H1000 1069 1172 10 7 38 25 375 429
H1025 1000 1069 12 8 45 32 331 401
H1050 862 1000 13 9 45 33 311 375
H1100 793 965 14 10 45 34 302 363
H1150 724 931 16 11 50 35 277 352
* Every effort has been made to ensure that our technical specifications are accurate. However, technical specifications included within Dynamic Metals Ltd should be used as a guideline only and are subject to change without notice.