1.7386 (X11CrMo9-1)
Classification
| Country |
Section |
Category |
| Germany |
Structural, Pressure Vessel and Engineering Steels |
Cr-Mo with Mo ≥ 0.35% |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Cu, % |
Al, % |
P, % |
C, % |
S, % |
Mo, % |
|---|
| EN 10216-2 |
86.765–90.47 |
0.25–1 |
0.3–0.6 |
8–10 |
< 0.3 |
< 0.04 |
< 0.025 |
0.08–0.15 |
< 0.02 |
0.9–1.1 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
$$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
|---|
| 100 |
|
11.1 |
| 200 |
206 |
12.1 |
| 300 |
181 |
12.9 |
| 400 |
172 |
13.5 |
| 500 |
162 |
13.9 |
| 600 |
152 |
14.1 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{0.2}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$KV_{L}$$, $$J$$ |
$$KV_{T}$$, $$J$$ |
Treatment |
|---|
|
|
|
|
isothermal annealing |
460–640 |
210 |
20 |
|
|
|
|
|
|
|
Hardening, normalization |
590–740 |
390 |
18 |
|
|
|
|
|
|
|
|
|
|
|
40 |
27 |
|
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Cu |
% |
Copper |
| Al |
% |
Aluminium |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
| Mo |
% |
Molybdenum |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$E\cdot 10^{9}$$ |
$$MPa$$ |
Elastic modulus |
| $$\alpha\cdot 10^{6}$$ |
$$K^{-1}$$ |
Coefficient of thermal (linear) expansion (range 20°C–T) |
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) |
| $$KV_{L}$$ |
$$J$$ |
Impact energy (longitudinal) |
| $$KV_{T}$$ |
$$J$$ |
Impact energy (transverse) |