General Description
15-7 Mo stainless steel is a semi-austenitic precipitation-hardening stainless steel with molybdenum and aluminum addition. It has high strength and hardness, good corrosion resistance.
Features
- Strong elasticity, can be repeatedly bent without deformation, The number of reverse stamping reaches tens of thousands.
- Excellent fatigue strength, high yield strength and close to tensile strength.
- Working temperature: between 350-500 ℃
- The best combination of strength and toughness can be achieved by heat treatment, and various cold deformation processing and welding processing can be performed.
Chemical Composition
| Grade | Fe% | Ni% | Cr% | C% | Mn% | Si% | P% | S% | Al% |
|---|---|---|---|---|---|---|---|---|---|
| 15-7 Mo | Bal. | 6.50-7.50 | 14.00-16.00 | Max 0.09 | Max 1.0 | Max 1.0 | Max 0.035 | Max 0.030 | 2.00-3.00 |
Designations
UNS S15700
Werkstoff Nr. 1.4574
AISI 632
Specifications
15-7 Mo Wire: AMS 5657
15-7 Mo Bar: AMS 5657
15-7 Mo Sheet/Strip/Plate: AMS 5520
Physical Properties
| Condition | Density kg/m3 |
Modulus of Elasticity GPa | Resistivity μΩ.m |
| A | 7804 | - | 0.80 |
| TH1050 | 7685 | 200 | 0.82 |
| RH950 | 7680 | 200 | 0.83 |
Mechanical Property
| Condition | UTS MPa |
0.2% YS MPa |
Elongation % | Hardness |
| A | 896 | 372 | 33 | B88 |
| TH1050 | 1517 | 1413 | 6 | C45 |
| C | 1517 | 1310 | 5 | C45 |
| RH950 | 1689 | 1482 | 6 | C49 |
| CH900 | 1828 | 1793 | 2 | C50 |
Forms
Wire available from 0.1mm, in coil or precision ground cut lengths
Strip thickness from 0.01mm
Bar and sheet are also available