Hss and toolsteel comparability

[Mattberghofttt]

We need to manufacture parts with a material that will have the same hardness and brittleness after heat treatment as High Speed Steel
Does anyone have an answer as to what kind of tool steel would be comparable

 

[unclesyd]

If you could give a little more information as to the end use I think you will get a better response.

A SWAG would be the high carbon steels.

 

[arunmrao]

Like unclesyd suggested,more information needed about the parts and their application. Tool steel is one big family with properties and application typical to each of them.

 

[btrueblood]

Even the term "high speed steel" denotes several possible tool steels. See:

http://en.wikipedia.org/wiki/High_speed_steel

 

[Mattberghofttt]

We need to manufacture a part that will break on contact when bumped or hit in any way. This part will be mounted on a limit switch to a machine. The part which will have a radial undercut in the middle is designed to break at this point. So the material that will be needed will have to have a low elasticity, in other words it cannot bend when it comes in contact with another object it will snap with out bending.

 

[btrueblood]

Glass, or ceramics, have this brittle nature.

Most all tool steels have at least some usable plastic strain capability. How much movement is ok - what minimum breaking strain must the part have? What impact energy is too much and what is too little?

If you have been using an "HSS" steel for this part, do you know which one, and what heat treatment it has?

 

[arunmrao]

Have you tried the cheapest and simplest metal grey iron. Perhaps,that might suit,else all tool steels do exhibit different levels of plasticity.

As btrueblood suggested might consider glass or ceramic.

 

[ornerynorsk]

Ditto the last 2 responses. You may want to look at something other than steel.