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The 90-10 Alloy PLI (PLI 900-100; PLI-10)

Designation

Name The value
Designation GOST Cyrillic ПлИ 90-10
Designation GOST Latin PlI 90-10
Transliteration PlI 90-10
The chemical elements PtIr 90-10
Name The value
Designation GOST Cyrillic ПлИ 900-100
Designation GOST Latin PlI 900-100
Transliteration PlI 900-100
The chemical elements PtIr 900-100
Name The value
Designation GOST Cyrillic ПлИ-10
Designation GOST Latin PlI-10
Transliteration PlI-10
The chemical elements PtIr-10

Description

The 90−10 alloy PLI is 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, GOST 24353-2014
Sheets and stripes В53 GOST 24353-80, GOST 24718-81
Classification, nomenclature and general norms В50 GOST 6563-75
Pipes from non-ferrous metals and alloys В64 TU 48-1-187-88

Chemical composition

Standard Si Fe Pb Au Ir Pt
GOST 30649-99 ≤0.009 ≤0.04 ≤0.015 ≤0.05 The rest 90-90.5
GOST 13498-79 - ≤0.04 - - 9.7-10.3 89.7-90.3
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-10 (UPLI 900-100). The sum of the normalized impurities is ≤ 0.110%.

Mechanical characteristics

σB, MPa
GOST 13498-2010
290-390

Description mechanical marks

Name Description
σB Limit short-term strength

Physical characteristics

Temperature r, кг/м3
20 21540

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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