Titanium alloy 30BTTs-VD

Used in superconductor technology

Classification

Country	Section	Category
CIS, Russia, Ukraine	Heat resistant steels and alloys	Heat resistant alloys

Chemical composition

Standard	Fe, %	Ti, %	Zr, %	Nb, %
GOST 10994-74	< 0.5	60.5–63	7–9	30

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Physical characteristics

Temperature, °C	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	Cp, Дж/кг·К
20	8	8.8	4450	542

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	δ, %	Treatment
Round	GOST 10994-74	40	Transverse		900–1000	400–500	25–35

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Round	GOST 10994-74		260–270

Limit operating modes

Standard	Температура, °C
GOST 10994-74	< 950

Heat Treatment Modes

Treatment
Hardening and artificial aging

Standards

Standard	Description
GOST 10994-74

Description of chemical elements

Element	Units of measurement	Description
Fe	%	Iron
Ti	%	Titan
Zr	%	Zirconium
Nb	%	Niobium

Description of physical characteristics

Parameter	Units of measurement	Description
Cp	Дж/кг·К	Specific heat of material
$\alpha\cdot 10^{6}$	$K^{-1}$	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

Description of mechanical properties

Parameter	Units of measurement	Description
δ	%	Elongation after rupture
$\sigma_{Y}$	$MPa$	Yield strength
$\sigma _{U}$	$MPa$	Ultimate tensile strength