Molybdenum, Mo, Annealed

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Molybdenum, Mo, Annealed
Categories:	Metal; Nonferrous Metal; Molybdenum Alloy; Pure Element
Material Notes:	Physical Form: Gray-Black Metal; Cubic. Annealed applies only to tensile and hardness values; other property values are typical of the element.
Key Words:	Moly
Vendors:	Eagle Alloys Corporation is a leading supplier of quality metals and alloys. Our staff prides itself on working fast, efficiently and courteously to get you the information you need. Call (800) 237-9012 or visit www.EagleAlloys.com. Elmet Technologies is a 100% US owned and operated, fully integrated manufacturer of Molybdenum, Tungsten and related alloys such as TZM, WHA & MoLa. At our 220,000 sqr/ft plant in Lewiston, Maine, Elmet manufactures W & Mo pure powders plus rod, wire, plate, sheet & foil in additional to offering fabrication and machining services. ITAR, ISO and AS9100 registered. www.elmettechnologies.com PLANSEE SE: Whether it's high temperatures, aggressive chemicals or extreme mechanical loading: PLANSEE supplies a suitable product solution in refractory metals or composite materials. As the world market leader in powder metallurgically produced high performance materials we combine outstanding materials knowledge with profound applications and technology know-how. Visit us at www.plansee.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	10.22 g/cc
a Lattice Constant	3.147 Å @Temperature 25.0 °C	Body Centered Cubic
Vapor Pressure	1.00 torr @Temperature 3102 °C
	10.0 torr @Temperature 3555 °C
	100 torr @Temperature 4109 °C
	200 torr @Temperature 4322 °C
	400 torr @Temperature 4553 °C
	760 torr @Temperature 4804 °C

Chemical Properties	Original Value	Comments
Atomic Mass	95.94
Atomic Number	42
Atomic Volume	1.53e-029	m^3
Thermal Neutron Cross Section	2.5 barns/atom
X-ray Absorption Edge	0.61977 Å	K
	4.32066 Å	L_I
	4.7133 Å	L_II
	4.9093 Å	L_III
Electrode Potential	-0.200 V
Electronegativity	2.16	Pauling
Ionic Radius	0.620 Å	Crystal Ionic Radius for Valence +6
	0.700 Å	Crystal Ionic Radius for Valence +4
	0.930 Å	Crystal Ionic Radius for Valence +1
Electrochemical Equivalent	1.79 g/A/h

Mechanical Properties	Original Value	Comments
Hardness, Brinell	225	Converted from Vickers for 3000 kg load/10 mm ball Brinell test. Annealed
Hardness, Rockwell A	60	Converted from Vickers. Annealed
Hardness, Rockwell B	98	Converted from Vickers. Annealed
Hardness, Rockwell C	19	Converted from Vickers. Annealed
Hardness, Vickers	230	Annealed
Tensile Strength, Ultimate	324 MPa	Annealed
	350 MPa	Single crystal
Modulus of Elasticity	330 GPa
	160 GPa @Temperature 2000 °C
	200 GPa @Temperature 1800 °C
	250 GPa @Temperature 1400 °C
	275 GPa @Temperature 1000 °C
Compressive Yield Strength	400 MPa	0.01% Yield
Bulk Modulus	272 GPa
Poissons Ratio	0.38	calculated
Shear Modulus	120 GPa
Shear Strength	500 MPa	torsional strain rate 0.25/sec

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000570 ohm-cm
	0.00000520 ohm-cm @Temperature 0.000 °C
	0.00000570 ohm-cm @Temperature 27.0 °C
	0.0000239 ohm-cm @Temperature 727 °C
	0.0000292 ohm-cm @Temperature 927 °C
	0.0000352 ohm-cm @Temperature 1127 °C
	0.0000412 ohm-cm @Temperature 1327 °C
	0.0000472 ohm-cm @Temperature 1527 °C
	0.0000535 ohm-cm @Temperature 1727 °C
	0.0000595 ohm-cm @Temperature 1927 °C
	0.0000660 ohm-cm @Temperature 2127 °C
	0.0000692 ohm-cm @Temperature 2227 °C
	0.0000718 ohm-cm @Temperature 2327 °C
	0.0000782 ohm-cm @Temperature 2527 °C
	0.0000814 ohm-cm @Temperature 2622 °C
Magnetic Susceptibility	9.3e-7	cgs/g
Critical Magnetic Field Strength, Oersted	93 - 99
Critical Superconducting Temperature	0.910 - 0.920 K

Thermal Properties	Original Value	Comments
Heat of Fusion	293 J/g
Heat of Vaporization	5610 J/g
CTE, linear	5.35 µm/m-°C @Temperature 20.0 °C
	6.00 µm/m-°C @Temperature 0.000 - 250 °C
	6.00 µm/m-°C @Temperature 0.000 - 500 °C
	6.50 µm/m-°C @Temperature 0.000 - 1000 °C
Specific Heat Capacity	0.217 J/g-°C	Gas
	0.255 J/g-°C
Thermal Conductivity	138 W/m-K
	100 W/m-K @Temperature 1127 °C
	105 W/m-K @Temperature 927 °C
	112 W/m-K @Temperature 727 °C
	118 W/m-K @Temperature 527 °C
	126 W/m-K @Temperature 327 °C
	130 W/m-K @Temperature 227 °C
	134 W/m-K @Temperature 127 °C
	138 W/m-K @Temperature 27.0 °C
	143 W/m-K @Temperature -73.0 °C
	150 W/m-K @Temperature -263 °C
	179 W/m-K @Temperature -173 °C
	210 W/m-K @Temperature -193 °C
	250 W/m-K @Temperature -213 °C
	280 W/m-K @Temperature -253 °C
	350 W/m-K @Temperature -233 °C
Melting Point	2617 °C
Boiling Point	4639 °C
Heat of Formation	0.000 kJ/mol	Crystal
	658.1 kJ/mol	Gas

Optical Properties	Original Value	Comments
Emissivity (0-1)	0.17 @Temperature 100 °C	total spectrum
Reflection Coefficient, Visible (0-1)	0.46	500 nm

Component Elements Properties	Original Value	Comments
Molybdenum, Mo	100 %

Descriptive Properties
CAS Number	7439-98-7
Solubility	Insoluble in H₂O, diluted Acid and Alkaline

References for this datasheet.

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