Plrd alloy 90-10 (Plrd-10; PR-10)

Designation

Name The value
Designation GOST Cyrillic ПлРд 90-10
Designation GOST Latin PlPd 90-10
Transliteration PlRd 90-10
By chemical elements PtHgд 90-10
Name The value
Designation GOST Cyrillic ПлРд-10
Designation GOST Latin PlPd-10
Transliteration PlRd-10
By chemical elements PtHgд-10
Name The value
Designation GOST Cyrillic ПР-10
Designation GOST Latin PP-10
Transliteration PR-10
By chemical elements ПHg-10

Description

Plrd 90−10 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; thermocouples; laboratory glassware; hardware; glass vessels; mesh woven wire and smooth twill weave, used in chemical industry and scientific purposes; thermoelectrodes of thermoelectrical transducers.

Note

Platinum-rhodium alloy.

Standards

Name Code Standards
Wire from nonferrous metals and their alloys В74 GOST 10821-2007, GOST 18389-2014
Non-ferrous metals, including rare, and their alloys В51 GOST 13498-79, GOST 13498-2010
Sheets and strips В53 GOST 24353-80, GOST 24718-81
Classification, nomenclature and General rules В50 GOST 6563-75
Mesh metal В76 TU 48-1-112-85

Chemical composition

Standard Fe Rh Pt
GOST 10821-2007 - 10 90
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, iridium, and gold in the alloy should be ≤ 0.15%. The sum of all the standard impurities (palladium, iridium, and gold, as well as silicon, lead, antimony and zinc) should be ≤ 0.19%.
According to GOST 10821-2007 the chemical composition is given for the alloy grade PR-10. The chemical composition indicates the nominal mass fraction of the components. As starting materials, platinum and rhodium are used with a mass fraction of the main component of at least 99.95% in accordance with GOST 31290 and GOST 12342.

Mechanical properties

σU, MPa d
GOST 13498-2010
290-390 -
Wire in the delivery state according to GOST 10821-2007
≥314 -
≥118 ≥15
≥39 ≥12

Description mechanical marks

Name Description
σU Limit short-term strength
d Elongation after rupture

Physical characteristics

Temperature r, kg/m3 R, Mr. · m
20 20000 200

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity
С Specific heat

Technological properties

Name The value
Operating temperature Composed of a thermoelectric transducer together with the platinum brand PLT operating temperature range is 0 to 1300 °C. maximum temperature for short-term use in 1600 °C.