The 80-20 Alloy PLI (800-200 PLI; PLI-20)

Designation

Name The value
Designation GOST Cyrillic ПлИ 80-20
Designation GOST Latin PlI 80-20
Transliteration PlI 80-20
By chemical elements PtIr 80-20
Name The value
Designation GOST Cyrillic ПлИ 800-200
Designation GOST Latin PlI 800-200
Transliteration PlI 800-200
By chemical elements PtIr 800-200
Name The value
Designation GOST Cyrillic ПлИ-20
Designation GOST Latin PlI-20
Transliteration PlI-20
By chemical elements PtIr-20

Description

The 80−20 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.

Note

Platinum-iridium alloy.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 GOST 13498-79, GOST 13498-2010
Wire from nonferrous metals and their alloys В74 GOST 18389-2014, GOST 24353-2014
Sheets and strips В53 GOST 24353-80
Classification, nomenclature and General rules В50 GOST 6563-75

Chemical composition

Standard Fe Ir Pt
GOST 13498-2010 ≤0.04 19.5-20.5 79.5-80.5
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 properties

σU, MPa
GOST 13498-2010
590-740

Description mechanical marks

Name Description
σU Limit short-term strength

Physical characteristics

Temperature r, kg/m3
20 21640

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity