1.4021 X 20 Cr13


1.4021 is a high-carbon member of the hardenable(Martensitic stainless steel), 12% chromium family of stainless steels. The higher carbon content provides higher heat treated hardness than is characteristic of type 1.4006. In the hardened condition, 1.4021 exhibits high strength and wear resistance.

This stainless steel can be moderately cold worked when in the fully annealed condition.


%C %Si %Mn %P %S %Cr %Mo %Ni  % B
0,17-0,25 1,00 1.5 0,045 0,030 12,0-14,0


Hot working:

Forging temperature range: 1100-850℃

Note: Heat to 1200 ℃. Do not forge after temperature of forging stock drops below 900


Heat treatment:

Soft annealing Hardening temprature Hardness Tempering temprature Hardness
730-780 980-1030 47 750-680 640-930


Main application:

Structural parts of higher strength

Shape of product:

Round, flat, step shape, ring, disc other shape depend on customer needs