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Thermal Treatments
Surface Treatments
Note: Properties shown throughout this data sheet are typical values.
Normal variations in chemistry, size and heat treat conditions may cause
deviations from these values.
DS 07/10 CPM 154 CM Crucible Industries LLC Printed in U.S.A.
Annealing:Heat to 1650°F (900°C), hold 2 hrs., slow
cool no faster than 25°F (15°C) per hour to 1200°F
(650°C), then furnace cool or cool in still air to room
temperature. Crucible 154 CM can be cycle annealed by
heating to 1600°F (900°C). hold 2 hrs., cool to 1300°F
(704°C), hold 4 hrs., then air cool.
Annealed Hardness: About BHN 235
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 to 25-50°F (15-30°C) below the
original tempering temperature, hold 2 hours, then furnace
cool or cool in still air.
Hardening
Preheat: Heat to 1400°F (760°C) Equalize.
Austenitize: 1900-2000°F (1037-1093°C), hold time at
temperature 30-60 minutes.
Quench: Oil or positive pressure (4 bar minimum) to below
125°F (50°C), or salt 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.
Temper: Twice at 400-1200°F (204-650°C), 2 hours
minimum each time.
Note: As with all martensitic stainless steels, tempering at
800-1100°F (425-600°C) will result in sensitization which
causes a minor reduction in both corrosion resistance and
toughness. We recommend that this tempering range be
avoided.
Aim hardness:HRC 55-62
Note: Properties shown throughout this data sheet are
typical values. Normal variations in chemistry, size and
heat treat conditions may cause deviations from these
values. For additional data or metallurgical engineering
assistance, consult
