Alloy MA11

Designation

Name The value
Designation GOST Cyrillic МА11
Designation GOST Latin MA11
Transliteration MA11
By chemical elements CuAl11

Description

Alloy MA11 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 for the manufacture of the parts, the heating in the process of operation with maximum operating temperatures up to +250 °C — long, up to +300 °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 Nd Mg Be
GOST 14957-76 1.5-2.5 ≤0.1 0.1-0.22 ≤0.03 ≤0.03 ≤0.1 ≤0.2 2.5-3.5 Rest ≤0.002
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 sT|s0,2, MPa σU, MPa d5, %
Rolled steel in the delivery state
130-160 260-280 5-14

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m a, 10-6 1/°C
20 42 1800 1088 62 -
100 - - - - 257
200 - - - - 275

A description of the physical symbols

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