40 (dubl)

According to OST 1−92077−91, the name of this alloy is 40. But since GOST 1050−88 designates structural steel as mark 40, in order to avoid confusion in Marocnik, this titanium alloy is designated as 40 (dubl)

For the manufacture of long products, ingots and semi-finished products

Classification

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

Chemical composition

Standard	Fe, %	Si, %	V, %	Zr, %	Al, %	C, %	O, %	N, %	Ta, %
Standard	Fe, %	Si, %	V, %	Zr, %	Al, %	C, %	O, %	N, %	Ta, %
OST 1-92077-91	< 0.25	< 0.12	0.5–2.5	< 0.3	1.5–3.5	< 0.07	< 0.14	< 0.04	92.78–97.7

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Standards

Standard	Description
Standard	Description
OST 1-92077-91	OST

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
V	%	Vanadium
Zr	%	Zirconium
Al	%	Aluminium
C	%	Carbon
O	%	Oxygen
N	%	Nitrogen
Ta	%	Tantalum