H13 Tool Steel Machinability

It rates as 75 that of the w group water hardening tool steels which are low alloy and of generally good machinability.

H13 tool steel machinability.

But as the need to extend tooling life grows its lack of ability to resist the attack of chemically aggressive plastic surface damage due to moisture and humidity and cooling water contamination reduces its effectiveness. The machinability rate of h13 tool steels is nearly 75 of that of the w group tool steels. The hot hardness hot strength of h13 resists thermal fatigue cracking which occurs as a result of cyclic heating and cooling cycles in hot work tooling applications. The machining characteristics are illustrated through three types of process outputs from the milling experiments.

This alloy is. H13 has been a robust grade in terms of strength heat treatment capability size availability and machinability. P 20 is a very popular mold steel grade. This paper investigates and compares the machining characteristics of aisi h13 tool steel in hardness states of 41 and 20 hrc in the ball end milling process.

H13 finds applications for hot die work die casting and extrusion dies. Machinability of h13 is medium to good. 4110 4120 4320 8020. P 20 is used for plastic injection and compression molds and zinc die casting dies.

P 20 is sold in the pre hardened condition. H13 has good ductility and may be formed by conventional means. The milling force the chip form and the surface roughness. It machines very well for a 45 hrc material can be polished to a 1 lens quality.

H13 tool steel is a versatile chromium molybdenum hot work steel that is widely used in hot work and cold work tooling applications. H13 tool steels are formed by using conventional methods. Then the steels are directly heated by increasing the temperature to 1010. H13 tool steels are readily weldable.

Toolox 44 is a pre hardened steel that has a nominal hardness of around 45 hrc. P 20 has a machinability rating of 65 of a 1 carbon tool steel.