15-5PH Stainless Steel

15-5PH Stainless Steel

15–5 PH stainless steel , a modification of 17-4 PH, is a martensitic, precipitation hardening alloy with chromium, nickel and copper. Alloy 15-5 offers high strength and hardness with good fabrication properties and excellent corrosion resistance, which makes it suitable for many industries and applications that require high transverse strength and toughness such as engine parts, aircraft components, nuclear reactor components, valves, gears, pumps, etc.

15-5 PH is available in Bar,, Forgings, Tube, Wire, Rings, Sheet, Strip and Plate. Contact Teknika4 for further availability.

Mechanical Properties Metric Imperial
Tensile Strength 1380 MPa 200000 psi
Yield Strength 1275 MPa 184900 psi
Modulus of Elasticity 200 GPa 29000 ksi
Elongation at Break 10% 10%
Hardness, Brinell 420 420
Hardness, Knoop 451 451
Hardness, Rockwell B 104 104
Hardness, Rockwell C 44.2 44.2
Hardness, Vickers 445 445
Charpy Impact 10 J 7.38 ft.lb
Chemical Composition Content (%)
Fe 75
Cr 14.48
Ni 4.5
Cu 3.5
Mn ≤1
Si ≤1
Nb + Ta 0.3
C ≤0.07
P ≤0.04
S ≤0.03

Alloy Designations

  • 15/5 PH
  • UNS S15500
  • AMS 5659