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

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

Standard	Fe, %	Si, %	Cr, %	Ti, %	Zr, %	Al, %	C, %	O, %	Mo, %	N, %	H, %
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

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$c\cdot 10^{-3}$ , $\frac{J}{kg\cdot K}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
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

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	Treatment
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

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

Weldability
Weldability
Boundedly welded

Standard	Description
Standard	Description
GOST 19807-91

Parameter	Units of measurement	Description
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

Parameter	Units of measurement	Description
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

Parameter	Units of measurement	Description
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