35GS
Weldability without restrictions. The temperature of critical points Ac 1 = 750, Ac 3 (Ac m) = 820, Mn = 369. Hardness 35GS hot rolled, HB 10 -1 = 202 MPa .
for the manufacture of fittings periodic profile classes At600S (Al-IVc) At800 (the V-AT) At800K (Al-VR), designed for reinforcement of concrete structures
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Structural steel |
Low alloy structural steel for welded structures |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Cu, % |
Ni, % |
P, % |
C, % |
S, % |
|---|
| GOST 5781-82 |
96.545–98.3 |
0.6–0.9 |
0.8–1.2 |
< 0.3 |
< 0.3 |
< 0.3 |
< 0.04 |
0.3–0.37 |
< 0.045 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{P}$$, $$MPa$$ |
$$\epsilon_L$$, % |
Treatment |
|---|
| Fittings |
GOST 5781-82 |
|
|
|
590 |
390 |
14 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Alloy |
|
hot rolling |
202 |
Technological Properties
Critical point temperatures
| Ac1, K |
Ac3(Acm), K |
Mn, K |
|---|
| 750 |
820 |
369 |
Analogues
| Germany |
China |
Bulgaria |
Hungary |
Poland |
Romania |
Czech Republic |
|---|
| 1.0428 (BSt420S) |
ZG35SiMn |
35GS |
B60.40 |
34GS |
PC60 |
10425 |
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 mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\sigma_{P}$$ |
$$MPa$$ |
Proportionality limit |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |
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 |
|
|
Description of temperatures of critical points
| Parameter |
Units of measurement |
Description |
| Ac1 |
K |
|
| Ac3(Acm) |
K |
|
| Mn |
K |
|