Plate
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Up to 1” + .000 up to .000
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1” to 2 ½” + .000 up to .000
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Other sizes available upon request
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Rounds
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Up to 1” + .010 up to .015
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1” to 3” + .020 up to .030
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Other sizes available upon request
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Critical Temperature
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1540°F (840°C)
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Forging
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2000 – 2100°F (1095 – 1150°C). Do not forge below 1700°F (930°C). Slow cool.
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Annealing
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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.
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Stress Relieving
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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)
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Hardening
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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%
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Stress Relieving
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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.
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Recommended Heat Treatment
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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)
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Annealing
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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.
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AIM Hardness
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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.
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CPM-10V Material In Stock
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Color Code: PINK
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Plate Dimensions
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½” up to 2 ½” (thickness)
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Other sizes available upon request
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Round Dimensions
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½” up to 3”
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Other sizes available upon request
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CPM-10V Typical Analysis
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C
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Mn
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Si
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Cr
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V
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Mo
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2.45
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.50
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.90
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5.25
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9.75
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1.30
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· Slight variations from typical analysis shown may occur in order to maintain the desired graphitizing potential.
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