Tool Steel M41

Aging Procedure

Not applicable to this alloy.

Annealing Procedure

Anneal at 1600 - 1650 F and slow cool in the furnace at less than 40 F per hour.

Applications

Primary application is as cutting tools for machining operations.

Cold Workability

Cold working of M41 in the annealed condition may be done by conventional methods.

Forgeability

Forge at 2100 F down to 1750 F. Do not forge below 1700 F.

Formability

Forming of the alloy may be done in the annealed condition be conventional methods.

Hardening Procedure

See "Heat Treatment" and "Tempering".

Heat Treatability

Preheat at 1450 F and then rapidly heat to 2250 F. Hold parts for 2 to 5 minutes and air cool, salt bath or oil quench.

Hot Workability

No data given except for "Forging".

Machinability

Machinability of M41 is rated at 55% that of the W group water hardening low alloy tool steels which are at 100% as a machinability reference.

Principle Design Features

This alloy is a High Speed, tungsten, molybdenum containing tool steel. It has good toughness along with hardness and is lower in cost than an equivalent tungsten (W) tool steel.

Tempering Procedure

Temper at 1000 to 1100 F for at least one hour at temperature. Repeating the tempering operation twice more, for a triple temper, is recommended. Rockwell C hardness will be in the range of 70 to 65.

Weldability

M41 is weldable. Consult the supplier for procedures and details.