U13A
The temperature of the critical points of the alloy Ac1 = 730, Ac3 (Acm) = 830, Ar1 = 700, Mn = 190. Hardness Y13 after annealing: HB 10 -1 = 217 MPa.
increased wear resistance tools operating at moderate to considerable pressure without heating the cutting edge
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Tool steel |
Carbon Tool Steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Cu, % |
Ni, % |
P, % |
C, % |
S, % |
|---|
| GOST 1435-99 |
97.407–98.4 |
0.17–0.33 |
0.17–0.28 |
< 0.2 |
< 0.2 |
< 0.2 |
< 0.025 |
1.26–1.34 |
< 0.018 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$\rho$$, $$\frac{kg}{m^3}$$ |
|---|
| 20 |
7800 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
Treatment |
|---|
| Tape |
|
0.08–3 |
|
annealing |
900 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Alloy |
|
annealing |
217 |
Critical point temperatures
| Ac1, K |
Ac3(Acm), K |
Ar1, K |
Mn, K |
|---|
| 730 |
830 |
700 |
190 |
Analogues
| Bulgaria |
Hungary |
Italy |
Poland |
France |
Czech Republic |
Japan |
|---|
| U13A |
S131 |
C140KU |
N13E |
C140E3U |
19255 |
SK1 |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
Description of temperatures of critical points
| Parameter |
Units of measurement |
Description |
| Ac1 |
K |
|
| Ac3(Acm) |
K |
|
| Ar1 |
K |
|
| Mn |
K |
|