CPM-10V

*Always consult your Heat Treater* 
     *Information Provided is General*
 

CPM-10V material was the first in the family of high vanadium tool steels. Cpm-10V optimized the vanadium content to provide superior wear resistance while maintaining toughness and fabrication characteristics comparable to D-2 and M-2 material. CPM-10V is exceptional for wear resistance and good toughness, makes it an excellent candidate to replace carbide and other highly wear resistant materials in colds work tooling applications, particular 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.

The combination of properties makes CPM-10V material an ideal choice for a variety of applications such as stamping and forming tools, powder compaction tooling, industrial knives and slitters, plastic mold inserts, wear parts, punches and dies, blanking and piercing dies, woodworking tools and plastic injection barrels.

Mechanical Properties

Impact Toughness
Depending upon the application requirements for hardness, lowering the hardening temperature (under-hardening) increases toughness.

Hardening Temperature

  F                        C

Tempering Temperature

  F                        C

Hardness

HRC

Charpy C-Notch

Impact Strength

     Ft./lb.       (J)

Bend Fracture

Strength

     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

     —-             —–

 

Machinability and Grindability
Machinability in the annealed condition is similar to CPM-T15 high-speed steel. Similar grinding equipment and practices used for high-speed steels are recommended. “SG” type of alumina wheels or CBN wheels have generally given the best performance with CPM grades.

 Plate

  •  Up to 1” + .000 up to .000

  •  1” to 2 ½” + .000 up to .000

  •  Other sizes available upon request

 Rounds

  •  Up to 1” + .010 up to .015

  •  1” to 3” + .020 up to .030

  •  Other sizes available upon request

 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 for 2 hours, slow cool no faster 30°F (15°C) per hour to 1000°F (540°C), then furnace cool or cool in still air to room temperature. BHN around 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.

 Austeniztize: Heat to 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 the 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%

 Stress Relieving

 Annealed Parts:   Heat to 1100 – 1300°F (595 – 705°C), hold 2 hours, then furnace cool or cool in still air.

 Hardened Parts:   Heat 25 – 50°F (15 – 30°C) below original tempering temperature, hold 2 hours, then furnace cool or cool in still air.

 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)

 Annealing

 Anneal Cooling Method: Heat to 1650°F (900°C), hold for 2 hours, slow cool no faster that 25°F (15°C) per hour to 1100°F (595°C), then furnace cool or cool in still air to room temperature.  BHN around 241.

 AIM Hardness

 HRC 58-60

 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.

  CPM-10V Material In Stock

 Color Code: PINK 

 Plate Dimensions

  •   ½” up to 2 ½” (thickness)

  •   Other sizes available upon request

 Round Dimensions

  •  ½” up to 3”

  •  Other sizes available upon request

 CPM-10V Typical Analysis

C

Mn

Si

Cr

V

Mo

2.45

.50

.90

5.25

9.75

1.30

 · Slight variations from typical analysis shown may occur in order to  maintain the desired graphitizing potential.