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Ir Material Datasheet

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Material Description

Material Number Material Name Standard Status VDA 231-106 classification
Ir Ir Valid 4.1 1)
1) Remark: The brittle, silver-white precious metal material Iridium (Ir) belongs to the heavy platinum metals (density up to 22 g/cm³). It is the most durable of all platinum metals, non-ductile, resistant to oxidation up to 800°C and is not attacked by aqua regia (in the heat it dissolves in concentrated NaCO3-containing hydrochloric acid). Due to its hardness and brittleness, it is hardly deformable, it can be machined and can be limited separated from the gas phase. Application: Iridium is used primarily as a catalyst in the reaction of gases and as a component of very hard alloys for electrical contacts and Füllfederspitzen used for crucibles and thermocouples.

Chemical Composition

Ir [%]
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Material Compliance

REACh RoHS
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Mechanical Properties

Condition Temperature [°C] Tensile Strength [MPa] Yield Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Hardness HV
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Physical Properties

Temperature [°C] Melting Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Shear Modulus [GPa] Poisson's Ratio Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Specific Electrical Resistance [µΩm]
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Creep Rupture Behaviour

Temperature [°C] Creep Tensile Strength at 1 h [MPa] Creep Tensile Strength at 10 h [MPa] Creep Tensile Strength at 10² h [MPa]
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Cross Reference

Material Name
Iridium

Producer/Supplier/Trade names

Tradename Supplier
Ir Evonik-Degussa GmbH, Essen
Ir Goodfellow GmbH, Hamburg

Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Density

Temperature [°C] Density [g/cm³]
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Electrical resistivity

Temperature [°C] Specific electrical resistance [µΩm]
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Designation

Designation Material number Source
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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