Alloy ВТ15

Designation

Name	The value
Designation GOST Cyrillic	ВТ15
Designation GOST Latin	BT15
Transliteration	VT15
By chemical elements	ВTe15

Description

Alloy ВТ15 used: for the manufacture of pipe blanks; cavitation resistant products.

Standards

Name	Code	Standards
Bars	В55	OST 1 90006-86
Non-ferrous metals, including rare, and their alloys	В51	OST 1 90013-81
Sheets and strips	В53	TU 1-5-010-78
Tubes of non-ferrous metals and alloys	В64	TU 1-5-127-73

Chemical composition

Standard	C	Cr	Si	Fe	N	Al	Ti	Mo	O	Zr	H
OST 1 90013-81	≤0.1	9.5-11.5	≤0.15	≤0.3	≤0.05	2.3-3.6	Rest	6.8-8	≤0.12	≤1.5	≤0.012

Ti is the basis.
According to OST 1 90013-81 the total content of other impurities (except zirconium) ≤ 0.30%. A partial replacement of molybdenum by tungsten in an amount not exceeding 0.30% is allowed. The total content of molybdenum and tungsten should not exceed the norms specified in the table for molybdenum. The total content of copper and nickel in an amount not exceeding 0.10% is allowed, including nickel not more than 0.080%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²	HB, MPa
Sheet. Quenching and aging
-	1180	1350-1500	4-8	-	-	341-444
Sheet. Annealing
-	850	900-1050	10-25	-	-	-
The tubular billet. Annealing
15х15	785-883	834-932	≥12	≥40	≥392	-

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number