CPM® 10V PM Tool Steel
Industries: Industrial
- CPM® alloy that exhibits very high wear resistance
- Pelletizer blades, barrel liners, punches, dies, granulator blades, slitter knives, screw tips, and wear inserts
- ASTM A681
For a data sheet on CPM® 10V PM Tool Steel, please click here
CPM® 10V PM tool steel delivers exceptional wear resistance for pelletizer blades, punches, and industrial tooling at Niagara Specialty Metals.
Hot rolled & processed by the employee owners of Niagara Specialty Metals in Akron NY
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Ordering Details:
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CPM® 10V PM Tool Steel Data Sheet
Typical Composition
| C | Mn | Si | Cr | Mo | V |
|---|---|---|---|---|---|
| 2.45 | 0.50 | 0.90 | 5.25 | 1.30 | 9.75 |
CPM® 10V was the first in the family of high vanadium tool steels. Engineers optimized the vanadium content to provide superior wear resistance while maintaining toughness and fabrication characteristics comparable to D–2 and M–2. Since its introduction in 1978, CPM® 10V has become recognized world–wide and sets the standard for highly wear resistant industrial tooling. Its exceptional wear resistance and good toughness make it an excellent candidate to replace carbide and other highly wear resistant materials in cold work tooling applications, particularly where tool toughness is a problem or where cost effectiveness can be demonstrated.
The CPM® process produces very homogeneous, high–quality steel characterized by superior dimensional stability, grindability, and toughness compared to steels produced by conventional processes.
Machinability and Grindability – Machinability in the annealed condition is similar to T15 high speed steel. Similar grinding equipment and practices used for high–speed steels are recommended. “SG” type alumina wheels or CBN wheels have generally given the best performance with CPM® steels.
Surface Treatments
Because of its high tempering temperatures (>1000°F) CPM® 10V is suitable for nitriding, PVD coating or similar surface treatments. CVD coating processes generally exceed the critical temperature and may result in non–predictable dimensional changes.
Mechanical Properties
Impact Toughness – Depending upon the application requirement for hardness, lowering the hardening temperature (under hardening) increases the toughness.
| Hardening Temperature | Tempering Temperature | HRC | Charpy C-Notch Strength | Bend Fracture Strength | ||||
|---|---|---|---|---|---|---|---|---|
| °F | °C | °F | °C | Ft-lb | (J) | Ksi | (Mpa) | |
| 2150 | 1175 | 1000 | 540 | 64 | 15 | 20 | 627 | 4322 |
| 2100 | 1150 | 1000 | 540 | 63 | 16 | 22 | 615 | 4239 |
| 2050 | 1120 | 1025 | 550 | 61 | 23 | 30 | 635 | 4377 |
| 1950 | 1065 | 1025 | 550 | 59 | 26 | 35 | ||
Thermal Treatments
Critical Temperature: 1540°F (840°C).
Forging: 2000–2100°F (1095–1150°C), do not forge below 1700°F (930°C). Slow Cool.
Annealing: Heat to 1600°F (870°C), hold 2 hours, slow cool no faster than 30°F (15°C) per hour to 1000°F (540°C), then furnace cool or cool in still air to room temperature.
Annealed Hardness: About BHN 255–277
Stress Relieving
Annealed Parts: Heat to 1100–1300°F (595–700°C), hold 2 hours, then furnace cool or cool in still air.
Hardened Parts: Heat to 30°F (15°C), below original tempering temperature, hold 2 hours, then furnace cool or cool in still air.
Straightening: Best done warm 400–800°F (200–430°C).
Hardening
Preheat: Heat to 1500–1550°F (815–845°C), Equalize. Second pre–heat stage at 1850–1900°F (1010–1040°C) suggested for vacuum or atmosphere hardening.
Austenitize: 1850–2150°F (1010–1175°C), hold time at temperature 30–45 minutes.
Quench: Air or positive pressure quench (2 bar minimum) to below 125°F (50°C), or salt or interrupted oil quench to about 1000°F (540°C), then air cool to below 125°F (50°C). Salt bath treatment, if practical, will ensure maximum attainable toughness for a given hardening treatment. Vacuum or atmosphere quench rate through 1850–1300°F (1010–705°C) range is critical to achieve optimum heat treat response. Temper: Double temper at 1000°F (540°C) minimum. 2 hours minimum each time.
Size Change: +0.03/0.05%
Recommended Heat Treatment: For the best combination of toughness and wear resistance, austenitize CPM® 10V at 2050°F (1120°C), hold 30–45 minutes, and quench. Temper 3 times at 1025°F (550°C).
Aim hardness: HRC 60. Higher austenitizing temperatures can be used to obtain higher hardness, at a slight decrease in impact resistance. The lower austenitizing temperatures provide the best impact toughness.
| Heat Treat Response (HRC Hardness) | ||||||
|---|---|---|---|---|---|---|
| Austenitizing Temperature | ||||||
| Tempering Temperature | 1850°F (1010°C) | 1900°F (1040°C) | 1950°F (1065°C) | 2050°F (1120°C) | 2100°F (1150°C) | 2150°F (1175°C) |
| As Quenched | 61 | 63 | 65 | 65 | 64.5 | 63.5 |
| 1000°F (540°C) | 56 | 57 | 60.5 | 62 | 63 | 64 |
| Optimum for Maximum Toughness and Effective Stress Relieving | ||||||
| 1025°F (550°C) | 54 | 56 | 58.5 | 60 | 62 | 63 |
| 1050°F (565°C) | 52 | 54 | 56.5 | 58 | 60 | 61 |
| 1100°F (595°C) | 49 | 51 | 52 | 54 | 55 | 56 |
| 1150°F (620°C) | 44 | 45 | 46 | 48 | 50 | 51 |
| 1200°F (650°C) | 40 | 41 | 43 | 46 | 47 | 48 |
| Results may vary with hardening method and section size. Salt or oil quenching will give maximum response. Vacuum or atmosphere cooling may result in up to 1–2 HRC points lower. | ||||||
| Minimum Time at Aust. Temp. | 60 minutes | 45 minutes | 30 minutes | 20 minutes | 15 minutes | 10 minutes |
| Minimum Number of Tempers | 2 | 2 | 2 | 2 | 3 | 3 |
This data sheet is for informational purposes only. Alloy characteristics are subject to change due to chemical composition and/or processing. We do not certify the material’s suitability for specific applications.
