1.0401 C15



1.0401 is a case hardening steel with 0.15% carbon content. It is a relatively low strength steel but it may be quenched and tempered for increased strength.
Sometimes considered a borderline grade of steel.
Main properties include such as: high Forgeability, reasonably good cold formability, and excellent weldability.


%C %Si %Mn %P %S %Cr %Mo %Ni other
0.12-0.18 ≤0,40 0.30-0.60 0,045 0,045

Hot working:

Forging temperature range: 1250-850℃
Note: Heat to 1280 ℃. Do not forge below 850.
Heat treatment:

Soft annealing Heat treatment to obtain a certain structure Heat treatment to obtain a certain tensile strength Carburize Core hardening Temper
650-700 850-950 900-1000 900-950 880-920 150-180


Main application:

Small machine components, levers, links, bushes, bolts, pins

Shape of product:

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