PM A11 high-speed tool steel is a versatile tool and die steel which provides extremely high wear-resistance in combination with relatively high impact toughness. A large volume of hard vanadium carbides provides the high wear-resistance. PM A11 offers substantially better wear-resistance than the high-carbon, high-chromium die steels such as D2 and D7. Many advantages we see when using this steel in cold work tooling applications are ease of grinding, improved response to heat treatments and cost effectiveness.
Other Known Names: CPM® 10V®, AISI A11
Griggs Steel Color Code:Ocean Blue
Punches, Extrusion Tooling, Slitter Knives, Cold Work Tooling.
0.298 lb/in3 (8256 kg/m3)
Modulus Of Elasticity
31 x 106 psi (214 GPa)
10-15% of a 1% carbon steel
High Speed Steel Properties Comparison
PM A11 High Speed Steel Chemical Composition
|2.45||5.25||.5 max||1.3||9.75||.5 max||255||63|
PM A11 High Speed Steel Heat Treating
PM A11 High Speed Steel Thermal Treatments
For Optimum Wear Resistance
- Soak for 5 to 15 minutes.
- Furnace or Salt Bath: 2150°F (1177°C)
For Balance of Wear Resistance and Toughness
- Soak for 15 to 30 minutes.
- Furnace or Salt Bath: 2050°F (1121°C)
For Maximum Toughness and minimum distortion in cooling
- Soak for 30 to 60 minutes.
- Furnace: 1975°F (1080°C)
- Salt Bath: 1950°F (1066°C)
For oil, quench until black, about 900°F (482°C), then cool in still air to 150-125°F (66-51°C). For salt maintained at 1000-1100°F (538-593°C), equalize in the salt, then cool in still air to 150-125°F (66-51°C).
Typical temperature range is 1000-1100°F (538-593°C). Do not temper below 1000°F (538°C). Hold at temperature for 2 hours then air cool to ambient temperature. Triple tempering is required is required when austenitized at 2100°F (1149°C) or higher.
Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1600°F (871°C), and hold at temperature for 1 hour per inch (25.4 mm) of thickness, 2 hours minimum. Then cool slowly with the furnace at a rate not exceeding 30°F per hour (17°C per hour) to 1000°F (538°C). Continue cooling to ambient temperature in the furnace or in air.