VT3-1

Punching hardness VT3−1 after annealing HB 10 -1 = 269 — 363 MPa. Punching hardness VT3−1 after quenching and aging HB 10 -1 = 302 — 415 MPa.

forged and schtampovannye parts operating at temperatures up to 400 ° C (6000 h) and up to 450 ° C (2000 hours); class structure of α + β

Classification

Country Section Category
CIS, Russia, Ukraine Titanium, titanium alloys Wrought Titanium Alloys

Chemical composition

Standard Fe, % Si, % Cr, % Ti, % Zr, % Al, % C, % O, % Mo, % N, % H, %
GOST 19807-91 0.2–0.7 0.15–0.4 0.8–2 85.95–91.05 < 0.5 5.5–7 < 0.1 < 0.15 2–3 < 0.05 < 0.015

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 115 8.01 4500 1.36
100 8.6 8.79
200 9.8 10.04 0.502
300 10.3 11.3 0.544
400 10.9 12.92 0.628
500 11.4 14.24 0.67
600 15.49 0.712

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
Round GOST 26492-85 930 6–8 15–20 250–300
Round GOST 26492-85 enhanced quality 930–1230 8–10 20–30 300
Round GOST 26492-85 enhanced quality 1180 6 16–20 180–200
Stamping 1040–1118 14–20 45–60 300–400
Stamping 1150–1220 10–12 32–48

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Metal rolling annealing 269–363
Metal rolling Hardening, aging 302–415

Technological Properties

Weldability
Boundedly welded

Standards

Standard Description
GOST 19807-91

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Cr % Chrome
Ti % Titan
Zr % Zirconium
Al % Aluminium
C % Carbon
O % Oxygen
Mo % Molybdenum
N % Nitrogen
H % Hydrogen

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$c\cdot 10^{-3}$$ $$\frac{J}{kg\cdot K}$$ The specific heat of the material (range 20°C–T)
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

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