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15-5 PH (UNS S15500, 1.4545)

Applications

Shafts, Gears, Aircraft Structural parts, Fittings, Fasteners, Valve parts

Features

  • 15-5 PH is a martensitic precipitation-hardening stainless steel that offers excellent corrosion resistance, high strength, and good toughness. This alloy conforms to AMS 5659 and AMS 5862 and is commonly used in aerospace and power generation applications where the combination of high strength and corrosion resistance is essential.
  • One of the benefits of 15-5 PH is that it is relatively easy to work with and can be readily machined, welded, and formed. However, to optimize the mechanical properties of this alloy, heat treatment may be necessary. The heat treatment process for 15-5 PH typically involves two steps: solution annealing and precipitation hardening.
  • It can be produced either through consumable electrode melting (ESR) or Vacuum Arc Remelting (VAR). 15-5 PH stainless steel offers very good transverse properties and is corrosion resistant.

Standard

AMS 5659 / AMS 5862

Material

15-5 PH / UNS S15500 / W.Nr 1.4545

Chemical composition (Nominal) %

Grade C Mn Si P S Cr
15-5 PH 0.07 max 1.00 max 1.00 max 0.030 max 0.015 max 14.00-15.50
Ni Nb Cu Mo Fe
3.50-5.50 5xC%-0.45 2.50-4.50 0.50-max Bal

Physical properties

Density 7.8 g/cm3

Mechanical properties

Condition Specimen Orientation Tensile Strength, min, MPa Yield Strength, min. (0.2 % offset), min, MPa Elongation in 2 in. or 50 mm (or 4D), % Reduction of Area, min,% Hardness, min, HB
H900 L 1310 1172 10 35 388
T 1310 1172 6 20
H925 L 1172 1069 10 38 375
T 1172 1069 7 25
H1025 L 1069 1000 12 45 331
T 1069 1000 8 32
H1075 L 1000 862 13 45 311
T 1000 862 9 33
H1100 L 965 793 14 45 302
T 965 793 10 34
H1150 L 931 724 16 50 277
T 931 724 11 35

Round bar

Size range

Product Material DIA Range Length Range
ROUND BAR 15-5 PH Φ5mm ~ Φ500mm 3000~6000mm

Plate and sheet

Size range

Product Material WD Range Length Range WT Range
PLATE & SHEET 15-5 PH 1000~2000mm 2000~4000mm 0.5~150mm