Designation
| Name |
The value |
| Designation GOST Cyrillic |
20ХГ2Ц |
| Designation GOST Latin |
20XG2Ts |
| Transliteration |
20HG2Ts |
| By chemical elements |
20CrMn2Zn |
Description
Steel 20KHG2C used: for the production of rebar periodic profile class A-IV with a diameter from 10 to 32 mm.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В22 |
GOST 5781-82, GOST 2590-2006, TU 14-2-949-91, TU 14-1-5254-94 |
| Bars and shapes |
В32 |
TU 14-11-245-88 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Zr |
| GOST 5781-82 |
0.19-0.26 |
≤0.045 |
≤0.045 |
1.5-1.9 |
0.9-1.2 |
0.4-0.7 |
≤0.3 |
Rest |
≤0.3 |
0.05-0.14 |
Fe is the basis.
According to GOST 5781-82, it is allowed to increase the mass fraction of chromium up to 1.7% and replace zirconium by 0.02-0.08% titanium - in this case the steel has the marking 20ХГ2Т.
Mechanical properties
| Section, mm |
t отпуска, °C |
sT|s0,2, MPa |
σU, MPa |
d5, % |
| Reinforcing steel class IV, HR |
| 10-32 |
- |
590 |
880 |
6 |
| Periodic profile No. 14. Quenching in water from 950 °C to + vacation |
| - |
300 |
1100 |
1240 |
8 |
| - |
400 |
1000 |
1130 |
9 |
| - |
500 |
800 |
890 |
13 |
| - |
600 |
650 |
750 |
17 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
Physical characteristics
| Temperature |
a, 10-6 1/°C |
| 100 |
123 |
| 200 |
123 |
| 300 |
125 |
| 400 |
131 |
| 500 |
135 |
| 600 |
139 |
| 700 |
139 |
| 900 |
142 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| G |
Modulus of elasticity shear torsion |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
Technological properties
| Name |
The value |
| Weldability |
welded without any restrictions. |
