Alloy АЛ18 (АЛ18В)

Designation

Name The value
Designation GOST Cyrillic АЛ18
Designation GOST Latin AL18
Transliteration AL18
By chemical elements -
Name The value
Designation GOST Cyrillic АЛ18В
Designation GOST Latin AL18B
Transliteration AL18V
By chemical elements -

Description

Alloy АЛ18 used: for the manufacture of bearings of electric motors with power up to 100 kW and speeds up to 1500 per minute; non-critical bearings, transmissions and gearboxes instead of bronze БрОЦС6−6-3; responsible of the simple parts (pulleys, brackets, face plates, sliders, racks, pattern equipment); castings of parts of metallurgical and energy engineering (as anti-friction material).

Note

Aluminum foundry alloy system Al-Cu.
Advantages: Satisfactory castability and machinability.
Disadvantages: Reduced corrosion resistance.

Standards

Name Code Standards
Castings, non-ferrous metals and alloys В84 OST 24.916.01-71

Chemical composition

Standard Mn Si Ni Fe Cu Al Zn Mg
OST 24.916.01-71 0.3-0.8 1.5-2.5 ≤0.5 1-1.8 7.5-9.5 Rest ≤0.5 ≤0.8
Al is the base.
The amount of allowable impurities should be for die casting ≤ 1.70%

Mechanical properties

σU, MPa d HB, MPa
Casting in a metal mold. Without heat treatment
≥177 ≥0.3 ≥80

Description mechanical marks

Name Description
σU Limit short-term strength
d Elongation after rupture
HB Brinell hardness number