1.1121 (C10E)
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 |
98.8–99.63 |
< 0.4 |
0.3–0.6 |
< 0.035 |
0.07–0.13 |
< 0.035 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{0.2}$$, $$MPa$$ |
$$\epsilon_{L (L_0 = 80 mm)}$$, % |
Treatment |
|---|
|
|
|
|
annealing, soft |
430 |
345 |
26 |
|
|
|
|
|
cold rolling |
830 |
|
|
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
|
|
annealing, soft |
131 |
|
|
normalization |
85–140 |
Твёрдость по Роквеллу
| Rolling |
Standard |
Classifiers |
Value, HRC |
|
|
annealing, soft |
73 |
Твёрдость по Викерсу
| Rolling |
Standard |
Classifiers |
Value, HV |
|
|
cold rolling |
250 |
Technological Properties
Standards
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 |
| $$\epsilon_{L (L_0 = 80 mm)}$$ |
% |
Elongation at break (longitudinal) (for L0 = 80 mm) |
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 |
|
|