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The 70-30 Alloy PLI (PLI-30)

Designation

Name The value
Designation GOST Cyrillic ПлИ 70-30
Designation GOST Latin PlI 70-30
Transliteration PlI 70-30
The chemical elements PtIr 70-30
Name The value
Designation GOST Cyrillic ПлИ-30
Designation GOST Latin PlI-30
Transliteration PlI-30
The chemical elements PtIr-30

Description

PLI 70−30 alloy 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.

Note

Platinum-iridium alloy.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 GOST 13498-79, 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 Fe Ir Pt
GOST 13498-2010 ≤0.04 29-31 69-71
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%.

Mechanical characteristics

σB, MPa
GOST 13498-2010
880-1080

Description mechanical marks

Name Description
σB Limit short-term strength

Physical characteristics

Temperature r, кг/м3
20 21730

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity

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