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

Weldability
no limits

Analogues

Germany United Kingdom
LT31 IMI318ELI

Standards

Standard Description
GOST 19807-91

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