9310 VAR AMS 6265
9310 VAR AMS 6265 alloy steel from Rockwell is a low alloy carburizing steel known for its hardenability and strength. 9310 VAR also possesses solid ductility, weldability, and machinability properties.
Stock sizes: 1.000” to 12.000” diameter
Common Specifications:
- AMS 6265; AMS 6260; AMS 6267; AMS 6279
- EMS 56279; EMS 56280
- Bell 299-947-032 Except Hardness
- Pratt & Whitney LCS F-17
- General Electric S-400 / S-1000
Industry Trade Names:
- 9310 VAR
- SAE 9310
- AISI 9310
- 10NiCrMo13-5
Common Applications:
- Aircraft engine gears and shafts
- Piston pins
VAR melting practice. Bars ordered as hot finished shall not have a hardness greater than 229 HBW.
Bars ordered cold finished shall not have a hardness greater than 248 HBW.
Composition
| Element | Min. | Max. |
|---|---|---|
| Carbon | 0.07 | 0.13 |
| Manganese | 0.40 | 0.70 |
| Silicon | 0.15 | 0.35 |
| Phosphorus | — | 0.015 |
| Sulfur | — | 0.015 |
| Chromium | 1.00 | 1.40 |
| Nickel | 3.00 | 3.50 |
| Molybdenum | 0.08 | 0.15 |
| Boron | — | 0.001 (10 ppm) |
| Copper | — | 0.35 |
Macrostructure Limits:
| Class | Condition | Severity |
|---|---|---|
| 1 | Freckles | A |
| 2 | White Spots | A |
| 3 | Radial Segregation | B |
| 4 | Ring Pattern | B |
Average grain size of ASTM No. 5 or finer.
Jominy hardness 41 HRC maximum at 1/16 inch and 32 HRC minimum at 6/16 inch.
