Custom® 465 AMS 5936
Custom 465 Stainless Steel is a double vacuum melted martensitic heat treatable alloy capable of 250,000+ PSI tensile in the H950 condition with a combination of high strength, toughness and corrosion resistance. It has similar corrosion resistance to 304 stainless. The grade was developed and is manufactured by Carpenter Technology.
Stock sizes: 0.251” to 7.000” diameter
Common Specifications:
- AMS 5936
- ASTM-F899; ASTM-A564
- Boeing BMS 7-364
- Boeing BSS 7025
- Messier Dowty CTC-M-D 465-1
- Stryker HMS 4553
Common Applications:
- Landing gear components
- Slat components
- Pneumatic cylinders, braces and struts
- Engine valves springs
- Endoscopic instruments
- Medical scrapers, cutters, suture needles
Melting Method: VIM-VAR
Heat treatment: solution heat treated to 1800 degrees F, held for 60 minutes, then quenched and cooled to -100 degrees F and held for at least 8 hours.
Composition
| Element | Min. | Max. |
|---|---|---|
| Carbon | — | 0.02 |
| Manganese | — | 0.25 |
| Silicon | — | 0.25 |
| Phosphorus | — | 0.015 |
| Sulfur | — | 0.010 |
| Chromium | 11.00 | 12.50 |
| Nickel | 10.75 | 11.25 |
| Molybdenum | 0.75 | 1.25 |
| Titanium | 1.50 | 1.80 |
| Nitrogen | — | 0.01 |
Macrostructure Limits:
| Class | Condition | Severity |
|---|---|---|
| 1 | Freckles | A |
| 2 | White Spots | A |
| 3 | Radial Segregation | A |
| 4 | Ring Pattern | B |
Tensile strength shall not be higher than 160 ksi in solution annealed condition. Hardness shall not be higher than 331 HB.
Precipitation heat treat requirements call for:
Minimum Tensile Properties:
| Condition | Specimen Orientation | Tensile Strength ksi | Yield Strength at 0.2% Offset ksi | Elongation in 2 inches or 4D% | Reduction of Area % |
|---|---|---|---|---|---|
| H950 | Longitudinal Transverse | 240 240 | 220 220 | 10 8 | 45 35 |
| H1000 | Longitudinal Transverse | 220 220 | 200 200 | 10 10 | 50 40 |
