Name	Code	Standards
Tape	В54	GOST 13726-97
Sheets and strips	В53	GOST 21631-76
Non-ferrous metals, including rare, and their alloys	В51	GOST 4784-97, OST 1 92014-90
Bars and shapes	В52	OST 1 92093-83

Chemical composition

Standard	Mn	Si	Fe	Cu	Al	Ti	Zn	Mg
OST 1 92014-90	1-1.5	≤0.7	≤0.7	≤0.1	Rest	≤0.1	≤0.1	0.8-1.3
GOST 4784-97	1-1.5	≤0.3	≤0.7	≤0.25	Rest	-	≤0.25	0.8-1.3

Al is the base.
According to GOST 4784-97 the chemical composition is given for alloy D12. Mass fraction of each other impurity (not regulated) ≤ 0.05%, total mass fraction of other impurities ≤ 0.15%.
According to OST 1 92014-90 the chemical composition is given for alloy D12. Mass fraction of each other impurity (not regulated) ≤ 0.05%, total mass fraction of other impurities ≤ 0.10%.

Mechanical properties

Section, mm	σ_U, MPa	d
Sheet metal in delivery condition according to GOST 21631-76, OST 4.021.047-92 tape according to GOST 13726-97 (samples transverse)
0.5-4	≥155	≥14
0.5-4	≥220	≥3

Description mechanical marks

Name	Description
σ_U	Limit short-term strength
d	Elongation after rupture

Physical characteristics

Temperature	r, kg/m³
20	2720

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
l	Coefficient of thermal conductivity
С	Specific heat

Alloy D12 (1521)

Designation

Description

Note

Standards

Chemical composition

Mechanical properties

Description mechanical marks

Physical characteristics

A description of the physical symbols

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