Alloy Slsr 75−25 applies: for production of electrical conductors, sliding contacts; gold leaf in books of the rectangular sheets, which are produced through forging of the foil and is designed for decorative and corrosion resistant coatings; jewellery for personal adornment (rings, rings, earrings, lockets, brooches, bracelets, clips, tie pins, cufflinks; gifts; commemorative medals; jewelry with emeralds.

Note

The gold-silver alloy 750-th sample.

Standards

Name	Code	Standards
Classification, nomenclature and General rules	В50	GOST 6563-75
Non-ferrous metals, including rare, and their alloys	В51	GOST 6902-75, GOST 30649-99, GOST Р 51152-98, GOST 6835-2002
Sheets and strips	В53	GOST 7221-80, GOST 24552-81

Chemical composition

Standard	Fe	Sb	Pb	Bi	O	Ag	Au
GOST 6835-2002	≤0.15	≤0.005	≤0.005	≤0.005	-	24.7-25.3	74.7-75.3
GOST 30649-99	≤0.15	≤0.005	≤0.005	≤0.005	≤0.007	24.5-25.3	75-75.5

Au is the base.
According to GOST 6835-2002 the amount of normalized impurities is ≤ 0.16%.
According to GOST 30649-99, the chemical composition is given for the jewelry alloy YuZlSr 75-25 (YuZlSr 750-250). The sum of the normalized impurities is ≤ 0.170%.

Physical characteristics

Temperature	r, kg/m³
20	15960

A description of the physical symbols

Name	Description
r	Density

Technological properties

Name	The value
Machinability	For machining, including diamond processing, it is preferable to use negativnoe or hardened state.
Pressure treatment	To all kinds of cold treatment.
Features of heat treatment	Low-temperature annealing leads to a significant increase of hardness, while reducing ductility. This can be used to improve the wear resistance of products.
Casting	When the casting alloy must be melted under vacuum and poured under a protective atmosphere.
Soldering	Alloy well soldered and recommended for the manufacture of products coated with enamel.

Alloy Slsr 75-25 (Slsr 750-250)

Designation

Description