By visiting this site, you accept the use of cookies. More about our cookie policy.

The 70-30 Alloy Plrd (Plrd-30)

Designation

Name The value
Designation GOST Cyrillic ПлРд 70-30
Designation GOST Latin PlPd 70-30
Transliteration PlRd 70-30
The chemical elements PtHgд 70-30
Name The value
Designation GOST Cyrillic ПлРд-30
Designation GOST Latin PlPd-30
Transliteration PlRd-30
The chemical elements PtHgд-30

Description

Plrd 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; thermocouples; laboratory glassware; hardware; glass vessels; thermoelectrodes of thermoelectrical transducers.

Note

Platinum-rhodium alloy.

Standards

Name Code Standards
Wire of non-ferrous metals and their alloys В74 GOST 10821-2007, GOST 18389-2014
Non-ferrous metals, including rare metals, and their alloys В51 GOST 13498-79, GOST 13498-2010
Sheets and stripes В53 GOST 24353-80, GOST 24718-81
Classification, nomenclature and general norms В50 GOST 6563-75

Chemical composition

Standard Fe Rh Pt
GOST 10821-2007 - 30 70
GOST 13498-79 ≤0.04 29.5-30.5 69.5-70.5
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-30. 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 characteristics

σB, MPa d
GOST 13498-2010
440-590 -
Wire in the delivery state according to GOST 10821-2007
≥490 -
≥235 ≥17
≥88 ≥20

Description mechanical marks

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

Physical characteristics

Temperature r, кг/м3 R, НОм · м
20 17630 190

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 alloy PR-6 operating temperature range is from 600 to 1700 °C. maximum temperature for short-term use of 1800 °C.

Our consultant will save your time

+49(1516) 758 59 40
Telegram:
WhatsApp:

Subscription

Special offers and discounts. :)