15-5pH steel alloy was designed to have greater toughness than 17-4 PH. The 15-5 alloy is martensitic in structure in the annealed condition and is further strengthened by a relatively low temperature heat treatment which precipitates a copper containing phase in the alloy. 15-5 is also referred to as XM-12 in some specifications
Steel 15-5PH (Xm-12) Chemical Composition
C |
Cr |
Ni |
Si |
Mn |
P |
S |
Cu |
Nb |
≤0.07 |
14.0-15.5 |
3.5-5.5 |
≤1.0 |
≤1.0 |
≤0.04 |
≤0.03 |
2.5-4.5 |
0.15-0.45 |
Steel 15-5PH (Xm-12) Physical Properties
Density |
Electric resistivity |
Heat specific capacity |
Thermal expansion coefficient |
7.8 |
0.98 |
460 |
10.8 |
Steel 15-5PH (Xm-12) Mechanical Properties
Condition |
бb/N/mm2 |
б0.2/N/mm2 |
δ5/% |
ψ |
HRC |
|
Precipitation |
480℃ageing |
1310 |
1180 |
10 |
35 |
≥40 |
550℃ageing |
1070 |
1000 |
12 |
45 |
≥35 |
|
580℃ageing |
1000 |
865 |
13 |
45 |
≥31 |
|
620℃ageing |
930 |
725 |
16 |
50 |
≥28 |
AMS 5659, AMS 5862,ASTM-A564 (XM-12),BMS 7-240 (Boeing),W. Nr./EN 1.4545
Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts
Supply in welding wire and spring wire in coil form and cut length.
Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm to 100mm.
Standards size and customized dimension can be produced by us with small tolerance
Soft condition and hard condition with AB bright surface, width up to 1000mm
Dimension can be customized with bright surface and precision tolerance.
• Precipitation Hardening
• High Strength
• Moderate corrosion resistance to 600°F
• Aerospace applications
• Chemical and petrochemical applications
• Pulp and paper
• Food processing