Alloy AK5M4 used: for the manufacture of ingots and shaped castings by various casting methods (sand casting, investment casting, gravity die casting, pressure casting), model alloy.

Note

Aluminum foundry alloy of the system Al-Si-Cu.

Standards

Name	Code	Standards
Non-ferrous metals, including rare, and their alloys	В51	GOST 1583-93, STP М287-78
Castings, non-ferrous metals and alloys	В84	OST 1 80029-83

Chemical composition

Standard	Mn	Si	Ni	Fe	Cu	Al	Ti	Zn	Mg
STP М287-78	0.2-0.6	3.5-6	≤0.5	≤1	3-5	Rest	0.05-0.2	≤1.5	0.2-0.5

Al is the base.
According to GOST 1583-93, the iron content is specified for casting in sand molds and for investment models. The iron content for molding in the mold is ≤ 1.20%, for die casting ≤ 1.40%. The amount of impurities accounted for should be for casting in sand molds and for waxed models ≤ 2.80%, casting in chill mold ≤ 3.00%, casting ≤ 3.20%.
According to the STS M287-78, the amount of impurities to be accounted for should be for casting in sand molds and in chill molds ≤ 2.80%. The iron content is indicated for casting in sand molds and in chill molds.

Mechanical properties

σ_U, MPa	d	HB, MPa
Casting. Without heat treatment
≥118	-	≥60
≥157	≥1	≥70
Casting. T6 mode: Quenching in water from 480-500 °C (delay of 5-7 h) + Complete artificial aging at 160-180 °C (exposure 5-7 hours)
≥196	≥0.5	≥90

Description mechanical marks

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

Physical characteristics

Temperature	r, kg/m³
20	2650

A description of the physical symbols

Name	Description
l	Coefficient of thermal conductivity
С	Specific heat

Alloy AK5M4

Designation

Description