Ruthenium Bar

Ruthenium Bar offers high corrosion resistance, exceptional hardness, and outstanding catalytic activity, making it indispensable in advanced industrial and scientific applications. Its inertness to most acids and durability at elevated temperatures are critical for aerospace, chemical processing, and high-vacuum systems. In catalysis, ruthenium bars are integral for hydrogenation, ammonia synthesis, and fuel cell technologies, where stability and surface reactivity are paramount. Precision instruments employ ruthenium bars as wear-resistant electrical contacts, while thin-film deposition setups use them as feedstock for sputtering targets. In research, they provide a reliable form for high-purity sample preparation, alloy development, and electrochemical testing. The bar form’s machinability and long-term performance under aggressive operational conditions ensure its continued value in pushing the limits of materials engineering and applied science.

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Tolerance

Properties

Reference & Citations

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Tolerances

Bar

Side Length	=<10mm	±10%
Side Length	>10mm	±1mm
Side Length (Of Longer Side)	>10mm	±1mm
Side Length (Of Longer Side)	=<10mm	±10%
Length	<100mm	±1mm
Length	>=100mm	+5% / -1%

Material Properties for Precious Metals

Atomic Properties

Element	Value
Atomic number	44
Crystal structure	Hexagonal close packed
Electronic structure	Kr 4d⁷ 5s¹
Valences shown	0,1,2,3,4,5,6,7,8
Atomic weight( amu )	101.07
Thermal neutron absorption cross-section( Barns )	3
Photo-electric work function( eV )	4.71
Natural isotope distribution( Mass No./% )	99/ 12.7
Natural isotope distribution( Mass No./% )	96/ 5.5
Natural isotope distribution( Mass No./% )	104/ 18.6
Natural isotope distribution( Mass No./% )	98/ 1.9
Natural isotope distribution( Mass No./% )	101/ 17.1
Natural isotope distribution( Mass No./% )	100/ 12.6
Natural isotope distribution( Mass No./% )	102/ 31.6
Atomic radius - Goldschmidt( nm )	0.134
Ionisation potential( No./eV )	2/ 16.8
Ionisation potential( No./eV )	3/ 28.5
Ionisation potential( No./eV )	1/ 7.36

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.25
Poisson's ratio	0.25
Bulk modulus( GPa )	286
Bulk modulus( GPa )	286
Tensile modulus( GPa )	432
Tensile modulus( GPa )	432
Hardness - Vickers( kgf mm⁻² )	750
Hardness - Vickers( kgf mm⁻² )	350
Tensile strength( MPa )	495
Yield strength( MPa )	372

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	7.7@20@20°C
Superconductivity critical temperature( K )	0.49
Temperature coefficient( K⁻¹ )	0.0041@0-100

Physical Properties

Element	Value
Boiling point( C )	3900
Density( gcm⁻³ )	12.2@20

Thermal Properties

Element	Value
Melting point( C )	2310
Latent heat of evaporation( J g⁻¹ )	5610
Latent heat of fusion( J g⁻¹ )	252
Specific heat( J K⁻¹ kg⁻¹ )	238@20°C
Thermal conductivity( W m⁻¹ K⁻¹ )	117@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	9.6@0-100°C