1.0401 (C15)

Carburization can be carried out in solid (powdery), liquid or gaseous media. In general, there are two methods: simple and direct hardening after carburization. When hardening, the carburized material is cooled to room temperature or at least 600 ° C., after which it is heated to the quenching temperature, which usually exceeds the point Ac-3. The carburizing temperature at simple hardening is always higher than the hardening by 50−100 ° C. With direct quenching, the stage of cooling and heating of the material to the quenching temperature is excluded. In this case, direct cooling from the carburizing temperature is used. In direct hardening, only fine-grained steels and some alloys are used to avoid the formation of residual austenite.

Classification

Country Section Category
Germany Non-alloy Steels Steels with Average 0,12% =< C < 0,25% or 400 MPa = < Rm < 500 MPa

Chemical composition

Standard Fe, % Si, % Mn, % P, % C, % S, %
98.53–99.58 < 0.4 0.3–0.8 < 0.045 0.12–0.18 < 0.045

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{0.2}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
5–10 solid, cold drawn 500–800 380 7
10–16 solid, cold drawn 480–780 340 8
16–40 solid, cold drawn 430–730 280 9
40–63 solid, cold drawn 380–670 240 11
63–100 solid, cold drawn 340–600 215 12

Brinell hardness number

Rolling Standard Classifiers Value, HBW
rolling, turning 98–178

Technological Properties

Weldability
no limits

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
P % Phosphorus
C % Carbon
S % Sulfur

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma_{0.2}$$ $$MPa$$ Tensile stress required to produce a total elongation of 0.2%
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures