M4 is the designation in both the sae and aisi systems for this material.
M4 tool steel yield strength.
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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.
Chemically the microscopic carbide.
This page shows summary ranges across both of them.
Sae aisi m4 steel is a tool steel.
Hs 6 5 4 e m4 skh 54 stark.
A2 d2 and m4.
Ideally tool steels would contain as much carbide volume as needed for the desired wear performance.
A large volume of vanadium carbides provides the high wear resistance.
Compare popular tool steel grades a2 m2 d2 s7 o1 using the chart below.
64 hrc min different hardness according different tempering temperature.
The high carbon content enables m4 steel to be hardened in excess of 65hrc.
Griggs steel color code.
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.
Choose from our selection of grade m2 tool steel including over 500 products in a wide range of styles and sizes.
Mechanical properties of alloy steel uns t11304 m4 high speed tool steel hardness annealing.
Cpm rex m4 hc powder metal high speed steel.
Compare grades using mechanical properties including abrasion resistance toughness size stability machinability and grindability.
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.
The properties of sae aisi m4 steel include two common variations.
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.
Hardness vs compressive yield strength.
Its sweet spot hardness is 54 56 hrc and a yield strength of 235 ksi at a 500 degree fahrenheit temper.
At those levels it achieves a good balance of strength and ductility.
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.
The high impact toughness and high transverse bend strength are results of the fine grain.
For more specific values follow the links immediately below.
T11304 is the uns number.
