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The 95-5 Alloy PLI (PLI 950-50; PLI-5)

Designation

Name The value
Designation GOST Cyrillic ПлИ 95-5
Designation GOST Latin PlI 95-5
Transliteration PlI 95-5
The chemical elements PtIr 95-5
Name The value
Designation GOST Cyrillic ПлИ 950-50
Designation GOST Latin PlI 950-50
Transliteration PlI 950-50
The chemical elements PtIr 950-50
Name The value
Designation GOST Cyrillic ПлИ-5
Designation GOST Latin PlI-5
Transliteration PlI-5
The chemical elements PtIr-5

Description

PLI 95−5 alloy used: for the manufacture of semi-finished products (sheets, tapes, strips, foils, wire, pipes, profiles, forgings) by hot or cold deformation used in instrument and apparatus building; and discontinuous sliding contacts; medical supplies; jewellery for personal adornment (necklaces, narrow and wide bracelets, original hair accessories, filigree earrings, brooches, pendants, wedding rings, rings, chains).

Note

Platinum-iridium alloy.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 GOST 13498-79, GOST 30649-99, GOST Р 51152-98, GOST 13498-2010
Wire of non-ferrous metals and their alloys В74 GOST 18389-2014
Sheets and stripes В53 GOST 24353-80, GOST 24718-81
Classification, nomenclature and general norms В50 GOST 6563-75

Chemical composition

Standard Si Fe Pb Au Ir Pt
GOST 30649-99 ≤0.009 ≤0.04 ≤0.015 ≤0.05 The rest 95-95
GOST 13498-79 - ≤0.04 - - 4.7-5.3 94.7-95.3
Pt is the basis.
According to GOST 13498-79, GOST 13498-2010, the total content of palladium, rhodium and gold in the alloy should be ≤ 0.15%. The sum of all normalized impurities should be ≤ 0.19%.
According to GOST 30649-99 the chemical composition is given for the jewelry alloy UPLI-5 (Yupli 950-50). The sum of the normalized impurities is ≤ 0.110%.

Mechanical characteristics

σB, MPa
GOST 13498-2010
200-290

Description mechanical marks

Name Description
σB Limit short-term strength

Physical characteristics

Temperature r, кг/м3
20 21500

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity

Technological properties

Name The value
Pressure treatment The alloy is suitable for all types of cold treatment.
Casting The alloy is suitable for all kinds of casting.

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