1.1140 (Cm15)

Classification

Country Section Category
Germany Non-alloy Special Steels Structural Pressure Vessel and Engineering Steels with C < 0,5%

Chemical composition

Standard Fe, % Si, % Mn, % P, % C, % S, %
EN 10084 98.745–99.56 < 0.4 0.3–0.6 < 0.035 0.12–0.18 0.02–0.04

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 10
63–100 solid, cold drawn 340–600 215 11
rolling, turning 330–600

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 143
normalization 95–150
rolling, turning 98–178

Technological Properties

Weldability
no limits

Analogues

CIS, Russia, Ukraine
15G

Standards

Standard Description
EN 10084

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