VT23

The hardness of the sheet VT23 after annealing HB 10 ^-1 = 255 — 270 MPa. The hardness of the sheet VT23 after quenching and aging HB 10 -1 = 300 — 420 MPa

for the production of cavitation-resistant products; class structure of α + β

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Cr, %	Ti, %	V, %	Zr, %	Al, %	C, %	O, %	Mo, %	N, %	H, %
Standard	Fe, %	Si, %	Cr, %	Ti, %	V, %	Zr, %	Al, %	C, %	O, %	Mo, %	N, %	H, %
OST 1-90013-81	0.4–0.1	< 0.15	0.8–1.4	84.1–89.3	4–5	< 0.3	4–6.3	< 0.1	< 0.15	1.5–2.5	< 0.05	< 0.015

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	Treatment
Sheet					1100–1200	10–13
Sheet					1450–1600	4–6

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Sheet		annealing	255–270
Sheet		Hardening, aging	300–420

Standards

Standard	Description
Standard	Description
OST 1-90013-81

Description of chemical elements

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

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\epsilon_L$	%	Elongation at break (longitudinal)