CARRS 80S

BS EN ISO 4957 - X38CrMoV5-3, DIN - 1.2367

TYPICAL ANALYSIS

C	0.38	Si	0.40
Mn	0.40	Cr	5.20
Mo	2.80	V	0.60

CHARACTERISTICS
Carrs 80S is excellent hot work steel combining high toughness with good high temperature strength.
Colour Code: Blue/Black

TYPICAL APPLICATIONS

•	Mandrels for copper alloy tube production	•	Aluminium alloy Diecasting tools for long runs
•	Water cooled dummy blocks	•	Die stamping tools for Aluminium and copper alloys
•	Die holders and liners	•	Dies and inserts on forging presses for steel

HEAT TREATMENT

FORGING graph
Commence at 1100^oC and avoid working below 950^oC.

ANNEALING
Soak thoroughly at 830^oC for 4 to 6 hours and slow cool in the furnace.

STRESS RELIEVING
Hold for 1 to 2 hours at 650^oC and cool slowly.

HEATING & SOAKING
Salt Bath Procedure
Pre-heat to 400^oC and hold for 1 hour per inch of ruling section. Remove to Neutral Salt Bath operating at 850^oC and soak for 15 minutes per inch with a minimum of 20 minutes. Raise to 1060^oC and hold for 10 minutes or 7 minutes per inch, whichever is greater.

QUENCHING
Quench in Salt at 540^oC, allow to equalise and cool in still air.

TEMPERING
Soak at temperature for 1 hour per inch of ruling section or 2 hours, whichever is longer. A second temper is essential and a third beneficial.