Alloy MA19

Designation

Name	The value
Designation GOST Cyrillic	МА19
Designation GOST Latin	MA19
Transliteration	MA19
By chemical elements	CuAl19

Description

Alloy MA19 is used: for the manufacture of semi-finished products (sheets, plates, bars, rods, profiles, strips, tubes, wire, stampings and forgings) by hot deformation, as well as ingots and slabs intended for the production of parts of welded structures requiring high tensile strength and maximum working temperature up to +150 °C — long, up to +200 °C — short-term.

Standards

Name	Code	Standards
Non-ferrous metals, including rare, and their alloys	В51	GOST 14957-76

Chemical composition

Standard	Mn	Si	Ni	Fe	Cu	Al	Zn	Zr	Nd	Mg	Be	Cd
GOST 14957-76	≤0.1	≤0.05	≤0.005	≤0.05	≤0.05	≤0.05	5.5-7	0.5-0.9	1.4-2	Rest	≤0.002	0.2-1

Mg is the basis.
According to GOST 14957-76 the mass fraction of other impurities is ≤ 0.30%. "Other impurities" include impurities whose permissible content limits are not indicated (≤), as well as impurities not included in the table, the content of which is not determined. Beryllium is not determined, but is introduced by calculation.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	HB, MPa
Rolled steel in the delivery state
	330-360	380-400	5-8	≥80

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
HB	Brinell hardness number

Physical characteristics

Temperature	Е, HPa	r, kg/m³	R, Mr. · m
20	42	1880	61

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity