- General Designation: Platinum
- Applications: crucibles, casting dishes, electrodes, semi-finished products, laboratory equipment (crucibles), crystal growth crucibles, glass manufacturing, thermocouple thimbles
- Product Forms: wire, sheet, tube
- Density (g/cm³): 21.45
Platinum / Pt
Density - HT
Details
- Age Hardenable
- No
- Material Behaviour
- ductile
- Forming Process
- formable, machinable, can be roll clad
- Observations¹
-
In contact withTemperature (°C)MediumConditionCorrosion
20 gaseous Cl2 dry light corrosive attack 20 gaseous F2 light corrosive attack 20 gaseous Cl2 moist light corrosive attack 20 hydrobromic acid HBr 60% light corrosive attack 20 hydrochloric acid/chlorine saturated light corrosive attack 20 20 hydrochloric acid/chlorine '- light corrosive attack 20 hydrofluoric acid HF 40 % no measurable corrosion 20 ethanol/iodine no measurable corrosion 20 hydrogen sulphide H2S moist no measurable corrosion 20 solid moist no measurable corrosion 20 solid dry no measurable corrosion 20 potassium cyanide KCN no measurable corrosion 20 bromine water no measurable corrosion 20 hydrochloric acid HCl 36 % no measurable corrosion 20 sodium hypochlorite NaClO no measurable corrosion 20 hydro-iodic acid HI 57% no measurable corrosion 20 sulphuric acid H2SO4 96% no measurable corrosion 20 nitric acid HNO3 65% no measurable corrosion 20 hydrofluoric acid 40% no measurable corrosion 20 hydrochloric acid HCl 36% no measurable corrosion 20 hydrochloric acid HCl 65% no measurable corrosion 20 selenic acid H2SeO4 no measurable corrosion 20 dry Br2 dry relatively severe attack 20 dry Br2 moist relatively severe attack 20 aqua regia HNO3+HCl total corrosion 80 hydrochloric acid/chlorine 20 % / saturated total corrosion 100 hydrochloric acid HCl 65% light corrosive attack 100 phosphoric acid light corrosive attack 100 hydrochloric acid/bromine light corrosive attack 100 orthophosphoric acid no measurable corrosion 100 copper(II) chloride CuCl2 no measurable corrosion 100 sulphuric acid H2SO4 96% no measurable corrosion 100 hydrochloric acid HCl 36% no measurable corrosion 100 sodium hypochlorite NaClO no measurable corrosion 100 acetic acid 99% no measurable corrosion 100 nitric acid HNO3 65% no measurable corrosion 100 mercury chloride HgCl2 no measurable corrosion 100 aluminium sulphate Al2(SO4)3 no measurable corrosion 100 potassium cyanide KCN relatively severe attack 100 hydrochloric acid/chlorine 20% / saturared relatively severe attack 100 selenic acid H2SeO4 relatively severe attack 100 hydrogen peroxide H2O2 total corrosion 100 aqua regia HNO3+HCl total corrosion 100 hydro-iodic acid HI 57% total corrosion 100 hydrobromic acid HBr 60% total corrosion 150 aqua regia HNO3+HCl total corrosion 300 sulphuric acid H2SO4 96% light corrosive attack 440 potassium bisulphate KHSO4 air access no measurable corrosion 500 sodium hydroxide NaOH air access light corrosive attack 500 potassium hydroxide KOH air accesss relatively severe attack 550 molten NaCN/KCN (2:1) air access relatively severe attack 700 molten NaCN air access relatively severe attack ZrO2 1000 hydrogen H2 light corrosive attack BN 1000 CO light corrosive attack BN 1000 air no measurable corrosion BN 1000 hydrogen H2 no measurable corrosion ZrO2 1000 CO no measurable corrosion SiO2 1000 CO no measurable corrosion Al2O3 1000 CO no measurable corrosion MgO 1000 CO no measurable corrosion ZrO2 1000 forming gas N2H2 95/5 no measurable corrosion SiO2 1000 forming gas N2H2 95/5 no measurable corrosion Al2O3 1000 forming gas N2H2 95/5 no measurable corrosion MgO 1000 forming gas N2H2 95/5 no measurable corrosion BN 1000 forming gas N2H2 95/5 no measurable corrosion ZrO2 1000 air no measurable corrosion SiO2 1000 air no measurable corrosion Al2O3 1000 hydrogen H2 no measurable corrosion Al2O3 1000 air no measurable corrosion MgO 1000 air no measurable corrosion PbO 1000 air no measurable corrosion P2O5 1000 air no measurable corrosion SiO2 1000 hydrogen H2 no measurable corrosion MgO 1000 hydrogen H2 no measurable corrosion P2O5 1000 hydrogen H2 relatively severe attack P2O5 1000 forming gas N2H2 95/5 relatively severe attack P2O5 1000 CO relatively severe attack PbO 1000 hydrogen H2 total corrosion PbO2 1000 forming gas N2H2 95/5 total corrosion PbO 1000 forming gas N2H2 95/5 total corrosion PbO2 1000 CO total corrosion PbO 1000 CO total corrosion PbO2 1000 hydrogen H2 total corrosion - Sources Chemical
- ¹ Edelmetall-Taschenbuch, ISBN 3-7785-2448-8
- IACS Min. (%) [100% IACS ≙ 58 S*m/mm²]
- 15.78
- IACS Max. (%) [100% IACS ≙ 58 S*m/mm²]
- 16.07
- Thermo-emf. vs. copper Hard (mV)
- -0.77
- Temperature coefficient of electric resistivity
-
From Temperature (°C)To Temperature (°C)Hard (x10-4/K)Annealed (x10-4/K)
0 100 39.2 0 200 38.7 0 300 38.1 0 400 37.6 0 500 37.1 0 600 36.5 0 700 36 0 800 35.3 0 900 34.7 0 1000 34 0 1100 33.4 0 1200 32.5 0 1300 31.7 0 1400 30.9 0 1500 30 0 1600 29.2
- Young's Modulus (GPa)
- 170
- Young's Modulus - HT¹
-
- Modulus of Rigidity (GPa)
- 66
- Poission's ratio
- 0.39
- Yield Strength RP0,2 - HT²
-
- Ult. Tensile Strength Rm - HT³
-
- Tensile Fracture Elongation A - HT⁴
-
- Annealed
-
Hardness (HV)Tensile strength (MPa)Yield strength (MPa)Elongation (%)
42 150 70 40 - Work hardened
-
Hardness (HV)Tensile Strength (MPa)Yield Strength (MPa)Elongation (%)
98 330 290 3 - Property Range
-
Hardness (HV)Tensile Strength (MPa)Yield Strength (MPa)Elongation (%)
42 - 98 150 - 330 70 - 290 3 - 40 - Sources Mechanical
- ¹Platinum Metals Review, 2001, 45(2), pp. 74-82 | ²measured | ³measured | ⁴measured
- Melting Range
-
From Temperature (°C)To Temperature (°C)
1769 - Thermal conductivity (W /(m*K)) [RT]
- 74
- Thermal conductivity - HT¹
-
- Specific Heat (J/(g*K)
- 0.133
- Specific Heat - HT²
-
- Linear Coefficient of Expansion³
-
From Temperature (°C)To Temperature (°C)Coefficient (x10-6/K)
20 100 8.8 20 200 9.1 20 300 9.4 20 400 9.5 20 500 9.6 20 600 9.6 20 700 9.9 20 800 10 20 900 10.1 20 1000 10.3 20 1100 10.5 20 1200 10.6 20 1300 10.8 20 1400 11 20 1500 11.2 20 1600 11.4 - Sources Thermal
- ¹Edelmetalltaschenbuch ISBN 3-7785-2448-8 | ²Edelmetalltaschenbuch ISBN 3-7785-2448-8 | ³Edelmetalltaschenbuch ISBN 3-7785-2448-8
Disclaimer
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 www.heraeus.com/gtc. This data sheet may be subject to changes at any time.
Discuss your solution
Get in contact with experts to discuss further steps to find the optimal solution for your process.