Alloy PLI Of 82.5 To 17.5 (PLI-17,5)

Designation

Name The value
Designation GOST Cyrillic ПлИ 82,5-17,5
Designation GOST Latin PlI 82,5-17,5
Transliteration PlI 825-175
By chemical elements PtIr 82,5-17,5
Name The value
Designation GOST Cyrillic ПлИ-17,5
Designation GOST Latin PlI-17,5
Transliteration PlI-175
By chemical elements PtIr-17,5

Description

Alloy PLI of 82.5 to 17.5 applicable: 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
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 17.1-17.9 82.1-82.9
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
590-690

Description mechanical marks

Name Description
σU Limit short-term strength

Physical characteristics

Temperature r, kg/m3
20 21610

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity