VT6S
Hardness VT6S after annealing HB 10 -1 = 241 — 321 MPa. Weldability with no restrictions.
for the manufacture of cylinders, working under pressure
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Titanium, titanium alloys |
Wrought Titanium Alloys |
Chemical composition
| Standard |
Fe, % |
Si, % |
Ti, % |
V, % |
Zr, % |
Al, % |
C, % |
O, % |
N, % |
H, % |
|---|
| GOST 19807-91 |
< 0.25 |
< 0.15 |
87.86–90.9 |
3.5–4.5 |
< 0.3 |
5.3–6.5 |
< 0.1 |
< 0.15 |
< 0.04 |
< 0.015 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$\rho$$, $$\frac{kg}{m^3}$$ |
|---|
| 20 |
4455 |
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 |
|
|
|
835 |
10–12 |
|
|
|
| Sheet |
GOST 22178-76 |
|
|
|
980 |
8 |
|
|
|
| Round |
GOST 26492-85 |
|
|
|
755–935 |
6–9 |
15–22 |
250–300 |
|
| Round |
GOST 26492-85 |
|
|
|
1030 |
4 |
14 |
250 |
|
| Round |
GOST 26492-85 |
|
|
enhanced quality |
755–980 |
7–10 |
22–30 |
400 |
|
| Round |
GOST 26492-85 |
|
|
enhanced quality |
1030 |
6 |
20 |
300 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
|
|
annealing |
241–321 |
Technological Properties
Analogues
| Germany |
United Kingdom |
|---|
| LT31 |
IMI318ELI |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Ti |
% |
Titan |
| V |
% |
Vanadium |
| Zr |
% |
Zirconium |
| Al |
% |
Aluminium |
| C |
% |
Carbon |
| O |
% |
Oxygen |
| N |
% |
Nitrogen |
| H |
% |
Hydrogen |
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 |
| $$\epsilon_L$$ |
% |
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 |
|
|