Material Database

Platinum DPH / Pt DPH

Platinum DPH is an oxide dispersion hardened grade of pure platinum.
It is commonly used in high temperature applications when the use of Rhodium cannot be tolerated or in times of high Rhodium prices (e. g. crucibles and equipment for processing special optical glasses). It is also used as a lining for refractory components or in thermocouple sheaths for the use in glass melts.
The hardening which results from the oxide particles, represents the most effective strengthening mechanism of the material. Due to the modified microstructure, DPH is considerably less sensitive to corrosion processes along the grain boundaries than comparable materials. These characteristics allow for extended life and results in the precious metal to be used more economically. An example would be reduced wall thicknesses of Pt DPH compared to Pt.

  • General Designation: Platinum DPH
  • Applications: crucibles, electrodes, casting dishes, semi-finished products, glass manufacturing, crystal growth crucibles, thermocouple thimbles
  • Product Forms: wire, sheet, tube
  • Density (g/cm³): 21.45

Density - HT


Material Behaviour
Forming Process
machinable, formable

IACS Max. (%) [100% IACS ≙ 58 S*m/mm²]
Electric Resistivity - HT¹
Sources Electrical
¹measured and interpolated

Yield Strength RP0,2 - HT²
Ult. Tensile Strength Rm - HT³
Tensile Fracture Elongation A - HT⁴
Creep Rupture⁶
Property Range
Hardness (HV)
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
60 178 73 22
Sources Mechanical
²measured | ³measured | ⁴measured | ⁵measured and extrapolated | ⁶measured and extrapolated

Melting Range
From Temperature (°C)
To Temperature (°C)
Thermal conductivity - HT¹
Specific Heat - HT²
Linear Thermal Expansion - HT⁴
From Temperature (°C)
To Temperature (°C)
expansion αL (µm(m*°C))
20 100 8.77
20 200 9.59
20 300 9.96
20 400 10.02
20 500 9.91
20 600 9.90
20 700 10.02
20 800 10.09
20 900 10.22
20 1000 10.38
20 1100 10.45
20 1200 10.59
20 1300 10.71
20 1400 10.84
20 1500 11.05
Sources Thermal
¹measured and interpolated | ²Edelmetalltaschenbuch ISBN 3-7785-2448-8 (values of Pt)| ⁴measured


The information in this data sheet contains only general information on the use of our products or examples for their application. They do not release the customer from a careful inspection of the delivered product for its fitness for the customer's particular purpose of use. Any customer's special requests regarding the particular use of a product will only be authoritative if Heraeus has confirmed to the customer in writing at the time of conclusion of a corresponding contract that the product delivered is fit for the customer's intended use. Heraeus, therefore, does not guarantee the correctness and completeness of the information regarding the customer's intended use. The customer's purchase will be governed exclusively by the written order confirmation of Heraeus and the Heraeus General Terms of Sale and Delivery, which are available at This data sheet may be subject to changes at any time.

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