However the high hardness and high vanadium carbide content make it more difficult to grind after heat treatment compared to m2 and other high speed steels.
M4 tool steel yield strength.
Hardness after heat treatment.
The wear resistance properties and cost place a2 between that of o1 and d2 tool steel making it a good all purpose grade for many applications.
Cpm rex m4 hc high speed steel is an extremely versatile high speed steel that provides a unique combination of high wear resistance with high impact toughness and transverse bend strength.
Compare grades using mechanical properties including abrasion resistance toughness size stability machinability and grindability.
M4 is the designation in both the sae and aisi systems for this material.
A large volume of vanadium carbides provides the high wear resistance.
This page shows summary ranges across both of them.
Cpm rex m4 hc powder metal high speed steel.
Sae aisi m4 steel is a tool steel.
At those levels it achieves a good balance of strength and ductility.
Griggs steel color code.
Compare popular tool steel grades a2 m2 d2 s7 o1 using the chart below.
64 hrc min different hardness according different tempering temperature.
T11304 is the uns number.
Rockwell c30 hard heat treatable.
Its sweet spot hardness is 54 56 hrc and a yield strength of 235 ksi at a 500 degree fahrenheit temper.
A2 d2 and m4.
A2 tool steel is an air hardening cold work chromium alloy die steel that is preferable to o1 tool steel in applications requiring greater size stability machinability and safer hardening.
Hs 6 5 4 e m4 skh 54 stark.
The properties of sae aisi m4 steel include two common variations.
248 hb max q t.
In fact solid carbide tooling is typically 85 or 90 tungsten carbide particles in a matrix of 10 or 15 cobalt to hold them together.
Mechanical properties of alloy steel uns t11304 m4 high speed tool steel hardness annealing.
The high carbon content enables m4 steel to be hardened in excess of 65hrc.
Chemically the microscopic carbide.
The high impact toughness and high transverse bend strength are results of the fine grain.
Choose from our selection of grade m2 tool steel including over 500 products in a wide range of styles and sizes.
For more specific values follow the links immediately below.
