Sunday, March 19, 2017

Tool Steel Designation Letters

Tool and Special Purpose Steels


WX   Water-Hardening Steels
SX   Shock-Resisting Steels
OX   Oil-Hardening Steels
AX   Air-Hardening Steels
DX   High Carbon-High Chromium Tool Steels
HXX   Hot Work Tool Steels
TX   High Speed Tungsten Based Tool Steels
MX   High Speed Molybdenum Based Tool Steels
LX   Special Purpose Tool Steels
FX   Carbon-Tungsten Tool Steels
2XX   Chromium-Nickel-Manganese Stainless Steels
3XX   Chromium-Nickel Stainless Steels
4XX   Chromium-Stainless Steels
5XX   Low Chromium Heat Resisting Stainless Steels

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