OT4-0
Sheet hardness OT4−0 HB 10 -1 = 200 MPa. The hardness of the rod OT4−0 HB 10 -1 = 156 — 207 MPa. Weldability without restrictions.
parts of complex configuration, long operating at temperatures 300−350 ° C and briefly at a temperature of 500−600 ° C; good corrosion resistance; class structure pseudo α
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Titanium, titanium alloys |
Wrought Titanium Alloys |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Ti, % |
Zr, % |
Al, % |
C, % |
O, % |
N, % |
H, % |
OE, % |
|---|
| GOST 19807-91 |
< 0.3 |
< 0.12 |
0.5–1.3 |
96.13–98.8 |
< 0.3 |
0.4–1.4 |
< 0.1 |
< 0.15 |
< 0.05 |
< 0.012 |
< 0.3 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
|---|
| 20 |
115 |
4514 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$\psi$$, % |
$$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ |
Treatment |
|---|
| Sheet |
GOST 22178-76 |
|
|
annealing |
470 |
20–30 |
|
|
|
| Trumpet |
GOST 24890-81 |
|
|
|
490–637 |
15 |
|
|
|
| Round |
GOST 26492-85 |
|
|
|
440 |
13–15 |
30–35 |
400–500 |
|
| Round |
GOST 26492-85 |
|
|
enhanced quality |
440–635 |
20 |
32–40 |
500–700 |
|
| Plate |
GOST 23755-79 |
11–150 |
|
|
490–635 |
10–12 |
18 |
|
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Sheet |
|
|
200 |
| Round |
|
|
156–207 |
Technological Properties
Analogues
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| OE |
% |
Other items |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Ti |
% |
Titan |
| Zr |
% |
Zirconium |
| Al |
% |
Aluminium |
| C |
% |
Carbon |
| O |
% |
Oxygen |
| N |
% |
Nitrogen |
| H |
% |
Hydrogen |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$E\cdot 10^{9}$$ |
$$MPa$$ |
Elastic modulus |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |
| $$\psi$$ |
% |
Reduction in cross section on fracture |
| $$KCU\cdot 10^{3}$$ |
$$\frac{J}{m^2}$$ |
Impact toughness |
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 |
|
|