1.0511 (C40)
Classification
Country |
Section |
Category |
Germany |
Non-alloy Steels |
Steels with Average 0,25% =< C < 0,55% or 500 MPa =< Rm < 700 MPa |
Chemical composition
Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Ni, % |
P, % |
C, % |
S, % |
Mo, % |
|
97.37–99.13 |
< 0.4 |
0.5–0.8 |
< 0.4 |
< 0.4 |
< 0.045 |
0.37–0.44 |
< 0.045 |
< 0.1 |
Information on suppliers
Mechanical properties at 20 °C
Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{0.2}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$, % |
$$R_{eH}$$, $$MPa$$ |
Treatment |
|
|
< 16 |
|
normalization |
580 |
|
|
16 |
320 |
|
|
|
16–100 |
|
normalization |
550 |
|
|
17 |
290 |
|
|
|
100–250 |
|
normalization |
530 |
|
|
17 |
260 |
|
|
|
5–10 |
|
solid, cold drawn |
700–1000 |
540 |
6 |
|
|
|
|
|
10–16 |
|
solid, cold drawn |
650–980 |
460 |
7 |
|
|
|
|
|
16–40 |
|
solid, cold drawn |
620–920 |
365 |
8 |
|
|
|
|
|
40–63 |
|
solid, cold drawn |
590–840 |
330 |
9 |
|
|
|
|
|
63–100 |
|
solid, cold drawn |
550–820 |
290 |
9 |
|
|
|
Brinell hardness number
Rolling |
Standard |
Classifiers |
Value, HBW |
|
|
rolling, turning |
163–211 |
Technological Properties
Weldability |
Boundedly welded |
Standards
Description of chemical elements
Element |
Units of measurement |
Description |
Fe |
% |
Iron |
Si |
% |
Silicon |
Mn |
% |
Manganese |
Cr |
% |
Chrome |
Ni |
% |
Nickel |
P |
% |
Phosphorus |
C |
% |
Carbon |
S |
% |
Sulfur |
Mo |
% |
Molybdenum |
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) |
$$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$ |
% |
Elongation at break (longitudinal) (for L0 = 5.65√So) |
$$R_{eH}$$ |
$$MPa$$ |
Upper yield point |
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 |
|
|