2.4631 (NiCr20TiAl)
Classification
| Country |
Section |
Category |
| Germany |
Alloy DIN 17007−4 |
Ni Alloys with Co, Cr and Mo Co Alloys with Cr, Ni and Mo |
Chemical composition
| Standard |
Fe, % |
Si, % |
B, % |
Mn, % |
Co, % |
Cr, % |
Ti, % |
Cu, % |
Ni, % |
Al, % |
P, % |
C, % |
S, % |
|---|
|
< 1.5 |
< 1 |
< 0.008 |
< 1 |
< 2 |
18–21 |
1.8–2.7 |
< 0.2 |
68.647–79.16 |
1–1.8 |
< 0.03 |
0.04–0.1 |
< 0.015 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
$$\varkappa$$, $$\frac{W}{m\cdot K}$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
$$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ |
$$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
|---|
| 20 |
|
13 |
8200 |
0.46 |
1.24 |
| 100 |
11.9 |
14 |
|
|
|
| 200 |
12.6 |
15 |
|
|
|
| 300 |
13.1 |
16 |
|
|
|
| 400 |
13.5 |
17 |
|
|
|
| 500 |
13.7 |
18 |
|
|
|
| 600 |
14 |
20 |
|
|
|
| 700 |
14.5 |
23 |
|
|
|
| 800 |
15.1 |
26 |
|
|
|
| 900 |
15.8 |
|
|
|
|
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{0.2}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$KV_{T}$$, $$J$$ |
$$KU$$, $$J$$ |
Treatment |
|---|
|
|
|
|
|
> 980 |
< 590 |
< 12 |
> 20 |
> 17 |
After precipitation hardening |
Analogues
| CIS, Russia, Ukraine |
USA |
|---|
| ВЖ102 |
N07080 |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| B |
% |
Bor |
| Mn |
% |
Manganese |
| Co |
% |
Cobalt |
| Cr |
% |
Chrome |
| Ti |
% |
Titan |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| Al |
% |
Aluminium |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$\alpha\cdot 10^{6}$$ |
$$K^{-1}$$ |
Coefficient of thermal (linear) expansion (range 20°C–T) |
| $$\varkappa$$ |
$$\frac{W}{m\cdot K}$$ |
Coefficient of thermal conductivity (the heat capacity of the material) |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
| $$c\cdot 10^{-3}$$ |
$$\frac{J}{kg\cdot K}$$ |
The specific heat of the material (range 20°C–T) |
| $$R\cdot 10^{-6}$$ |
$$\Omega\cdot m$$ |
Electrical resistivity |
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) |
| $$KV_{T}$$ |
$$J$$ |
Impact energy (transverse) |
| $$KU$$ |
$$J$$ |
Impact energy |