15-7M0Ph steel alloy can withstand all kinds of cold forming and welding process under the condition of austenite.Then through heat treatment can obtain
the highest strength; Under 550 ℃ with excellent high temperature strength,was designed to have greater toughness than 17-4 PH. The 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.
Steel 15-7Mo Chemical Composition
C |
Cr |
Ni |
Mo |
Si |
Mn |
P |
S |
Al |
≤0.09 |
14.0-16.0 |
6.5-7.75 |
2.0-3.0 |
≤1.0 |
≤1.0 |
≤0.04 |
≤0.03 |
0.75-1.5 |
Steel 15-7Mo Physical Properties
Density (g/cm3) |
Electrical resistivity (μΩ·m) |
7.8 |
0.8 |
Steel 15-7Mo Mechanical Properties
Condition | бb/N/mm2 | б0.2/N/mm2 | δ5/% | ψ | HRW | |
Precipitation hardening |
510℃ ageing |
1320 |
1210 |
6 |
20 |
≥388 |
565℃ ageing |
1210 |
1100 |
7 |
25 |
≥375 |
AMS 5659, AMS 5862,ASTM-A564 ,W. Nr./EN 1.4532
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.
• Can withstand all kinds of cold forming and welding process under the condition of austenite.then through heat treatment can obtain the highest
strength ,Under 550 ℃ with excellent high temperature strength.
• Electric welding property:The steel can adopt arc welding, resistance welding and gas shielded arc welding, gas shielded welding is the best.
Welding is often done in materials solid solution treatment conditions,and do not need to preheat before welding.
When welding requires high strength, the 17-7 with lower content of δ- ferrite is chosen mostly,austenitic stainless steel welding wire can be used
Applied to make aviation thin-wall structure components, all kinds of containers, pipes, spring, valve film, ship shaft,
compressor plate, reactor components, as well as a variety of structure components of chemical equipment, etc.