Stainless Steel 15-5ph Fasteners

AISI 4130 Bolts

15-5ph Fasteners are manufactured in varieties of bolts, stud bolts, screws, threaded rods, nuts, washers & other customised fastener parts, with coarse and fine threads. 15-5ph stainless steel fasteners are high tensile components, produced from forging stock and bar stock and heat treated to specification, to meet desired mechanical properties. 15-5ph fasteners can be produced in metric and imperial sizes as per DIN, ISO, ASME or any international dimension standards.

15-5ph is a precipitation hardened stainless steel alloy, developed for high tensile applications in field of aerospace, marine & offshore, high speed automotive engineering, nuclear power extraction equipments and paper pulp processing. 15-5ph is a variant to 17-4ph Chromium Nickel Copper Alloy with effective performance in high pressure corrosive environments. UNS S15500, Alloy XM-12, DIN EN 1.4545 are grade equivalents of 15-5ph stainless steel.

Chemical Composition

  • Carbon C 0.07% Max
  • Manganese Mn 1.00% max
  • Sulphur S 0.03% max
  • Phophorous P 0.04% max
  • Silicon Si 1.00% max
  • Nickel Ni 3.50-5.50
  • Chromium Cr 14.0-15.5%
  • Copper Cu 2.50-4.50%
  • Nb+Tantalum Nb+Ta 0.15-0.45%
  • Iron Fe Balance

Mechanical Properties

  • Tensile Strength : 1310 MPa
  • Yield Strength : 1170 MPa
  • Elongation : 10% min
  • Reduction of Area : 35% min
  • Hardness, Brinell : 388 min

AISI 15-5ph Grade Equivalent

AISI Grade UNS Designation DIN Equivalent Alloy Cr-Ni
15-5ph S15500 1.4545 XM-12 15-5

15-5ph Fastening Products

15-5ph Specifications

Specifications Material Form Products
ASTM A564 XM-12/UNS S15500    
ASTM A693 XM-12/UNS S15500    
ASTM A705 XM-12/UNS S15500    


15-5ph stainless steel is commonly used to manufacture fasteners for following sectors.