molybdenum-rod has the advantages of corrosion resistance, high melting point, small deformation at high temperature, easy installation and maintenance, and good chemical stability. Therefore,molybdenum rods are widely used in all aspects of production and life.

Types of Molybdenum Rod

Pure Molybdenum Rod

Pure molybdenum rods refer to molybdenum rods with a molybdenum content greater than 99.95%

High-temperature Molybdenum Rod

High-temperature molybdenum rods usually refer to molybdenum-lanthanum alloy rods, which contain 0.4-1.2% of lanthanum, and the molybdenum content is the balance except for impurities.

Specifiaction Of Molybdenum Rod

We carry a full line of standard rods and bars. Apart from this, our moly bars and moly rods are available in various dimensions upon your request.

Dia. (inch)

Len. (inch)

Dia Tlrnc. (inch)

Len Tlrnc. (inch)

0.08 - 0.40

<315

±0.005

+0.08, -0

0.40 - 0.80

<118

±0.010

+0.08, -0

0.80 - 4.00

<78

±0.015

+0.08", -0

>4.00

<40

±0.025

+0.08, -0

Properties of Molybdenum Rod

Molecular Weight

95.94

Appearance

Silvery

Melting Point

2623 °C

Boiling Point

4639 °C

Density

10280 kg/m3

Solubility in H2O

N/A

Electrical Resistivity

5.2 microhm-cm @ 0 °C

Electronegativity

1.9 Paulings

Heat of Fusion

6.6 Cal/gm mole

Heat of Vaporization

128 K-Cal/gm atom at 4612 °C

Poisson’s Ratio

0.31

Specific Heat

0.0599 Cal/g/K @ 25 °C

Tensile Strength

N/A

Thermal Conductivity

1.38 W/cm/K @ 298.2 K

Thermal Expansion

(25 °C) 4.8 µm·m-1·K-1

Vickers Hardness

1530 MPa

Young’s Modulus

329 GPa

Equivalent Specifications of Molybdenum Rod

CZ121

CW614N

CuZn39PB3

BS2874

CW614N

-

Standard Molybdenum Rod

MO007900
 Diameter:6.0mm, Purity:99.9%, Condition:Centreless ground
MO007901
 Diameter:3.0mm, Purity:99.9%, Condition:Centreless ground
MO007902
 Diameter:1.5mm, Purity:99.9%, Condition:Centreless ground
MO007903
 Diameter:2.0mm, Purity:99.9%, Condition:Centreless ground
 
MO007904
 Diameter:4.0mm, Purity:99.9%, Condition:Centreless ground
MO007905
 Diameter:5.0mm, Purity:99.9%, Condition:Centreless ground
MO007906
 Diameter:5.0mm, Purity:99.98%
MO007907
 Diameter:3.5mm, Purity:99.9%, Condition:Centreless ground
MO007908
 Diameter:1.25mm, Purity:99.9%, Condition:Centreless ground
 
MO007910
 Diameter:8.0mm, Purity:99.9%, Condition:Centreless ground
MO007920
 Diameter:10.0mm, Purity:99.9%, Condition:Centreless ground
MO007922
 Diameter:12mm, Purity:99.9%, Condition:Centreless ground
MO007926
 Diameter:15.0mm, Purity:99.9%, Condition:Centreless ground
MO007931
 Diameter:20.0mm, Purity:99.9%, Condition:Centreless ground
MO007945
 Diameter:25mm, Purity:99.9%, Condition:Centreless ground
MO007950
 Diameter:30mm, Purity:99.9%, Condition:Centreless ground
MO007960
 Diameter:50mm, Purity:99.9%, Condition:Centreless ground
MO007975
 Diameter:75mm, Purity:99.9%, Condition:Centreless ground
MO007995
 Diameter:100mm, Purity:99.9%, Condition:Centreless ground

Chemical Composition of Molybdenum Rod

Grade

The impurity content is not more than %

Fe

Ni

Al

Si

Mg

C

N

O

Mo-1

0.01

0.005

0.002

0.01

0.005

0.01

0.003

0.008

Mo-2

0.01

0.005

0.005

0.01

0.005

0.01

0.003

0.02

Mechanical Properties of Molybdenum Rod

Properties

Metric

Imperial

Tensile strength (annealed

324 MPa

47000 psi

Shear strength (torsional strain rate 0.25/s)

500 MPa

72500 psi

Compressive yield strength (0.01% yield)

400 MPa

58000 psi

Modulus of elasticity

330 GPa

47900 ksi

Modulus of elasticity at elevated temperature (@2000°C/3630°F)

160 GPa

23200 ksi

Poissons ratio (calculated)

0.38

0.38

Hardness, Brinell (converted from Vickers for 3000 kg load/10 mm ball Brinell test. annealed)

225

225

Hardness, Rockwell A (converted from Vickers. annealed)

60

60

Hardness, Rockwell B (converted from Vickers. annealed)

98

98

Hardness, Rockwell C (converted from Vickers. annealed)

19

19

Hardness, Vickers (annealed)

230

230

Physical Properties of Molybdenum Rod

Properties

Metric

Imperial

Density

10.3 g/cm³

0.369 lb/in³

Melting point

2625°C

4760°F

Molybdenum Rod Thermal Properties

Properties

Metric

Imperial

Thermal expansion coefficient (@20°C/68°F)

5.35 µm/m°C

2.97 µin/in°F

Thermal conductivity

138 W/mK

958 BTU in/hr.ft².°F

Rods made of pure molybdenum Dimensions

Diameter[mm]
Length[mm]
Quality
Weight[kg]
2.000
500 – 3.000
ground
0.032
3.00
500 – 3.000
ground
0.072
3.175
500 – 3.000
ground
0.081
4.000
500 – 3.000
ground
0.128
4.750
500 – 3.000
ground
0.181
5.000
500 – 3.000
ground
0.200
6.000
500 – 3.000
ground
0.288
6.350
500 – 3.000
ground
0.323
7.000
500 – 3.000
ground
0.392
7.925
500 – 3.000
ground
0.503
8.000
500 – 3.000
ground
0.512
9.000
500 – 3.000
ground
0.649
9.525
500 – 3.000
forged
0.726
9.525
500 – 3.000
ground
0.726
10.000
500 – 3.000
ground
0.801
12.000
500 – 2.000
ground
1.153
12.000
500 – 2.500
ground
1.153
12.700
500 – 2.000
ground
1.291
12.700
500 – 2.000
forged
1.291
13.000
500 – 2.000
ground
1.353
41.000
500 – 2.000
ground
1.569
15.000
500 – 2.000
forged
1.802
15.000
500 – 2.000
ground
1.802
15.875
500 – 2.000
ground
2.018
16.000
500 – 2.000
forged
2.05
18.000
500 – 2.000
forged
2.594
19.050
500 – 1.700
forged
2.906
19.050
500 – 1.700
forged
2.906
19.050
500 – 1.700
ground
3.203
20.000
500 – 1.700
forged
3.203
22.000
500 – 1.700
ground
3.875
22.225
500 – 1.800
forged
3.955
25.000
500 – 2.000
ground
5.004
25.000
500 – 2.000
forged
5.004
25.400
500 – 2.000
ground
5.166
25.400
500 – 2.400
forged
5.166
30.000
500 – 2.000
ground
7.206
30.000
500 – 2.000
ground
7.206
33.000
500 – 2.400
forged
8.72
35.000
500 – 2.000
forged
9.809
38.100
500 – 2.000
forged
11.623
40.000
500 – 2.600
ground
12.811
45.000
500 – 2.200
forged
16.576
50.800
500 – 2.800
forged
20.663
55.000
500 – 2.300
forged
24.221
60.000
500 – 1.800
forged
28.825
63.500
500 – 3.000
forged
32.286
70.000
500 – 1.800
forged
39.234
80.000
500 – 3.000
forged
51.245
90.000
500 – 2.700
forged
64.857
100.000
500 – 2.200
smooth forged
80.07
120.000
500 – 2.000
smooth forged
115.301
120.000
500 – 2.000
smooth forged
115.301
140.000
300 – 500
smooth forged
156.937
165.000
300 – 500
extruded
217.991

Rods made of titanium-zirconium-molybdenum (TZM)

Diameter[mm]
Length[mm]
Quality
Weight[kg]
4.750
500 – 3.000
ground
0.181
6.000
500 – 3.000
ground
0.288
6.350
500 – 3.000
ground
0.323
8.000
500 – 3.000
ground
0.512
10.000
500 – 3.000
ground
0.801
12.700
500 – 2.000
forged
1.291
15.875
500 – 2.000
ground
2.018
16.000
500 – 1.600
forged
2.05
18.000
500 – 2.000
forged
2.594
19.050
500 – 1.500
ground
2.906
20.000
500 – 2.000
forged
3.203
22.225
500 – 2.000
forged
3.955
25.000
500 – 2.000
forged
5.004
25.400
500 – 1.900
forged
5.166
26.670
500 – 1.800
forged
5.695
30.000
500 – 1.600
forged
7.206
31.750
500 – 1.400
forged
8.072
33.000
500 – 1.400
forged
8.72
35.000
500 – 2.000
forged
9.809
40.000
500 – 3.000
forged
12.811
45.000
500 – 2.000
forged
16.214
49.500
500 – 1.600
forged
19.619
55.000
500 – 1.800
forged
24.221
63.500
500 – 2.800
forged
2.05
70.000
500 – 1.800
forged
2.594
80.000
500 – 2.500
forged
2.906
90.000
500 – 2.300
forged
2.906
100.000
500 – 3.000
forged
3.203
140.000
300 – 500
forged
3.203
165.000
300 – 500
forged
3.875

molybdenum rod Standard Diameter Tolerances (inches)

Properties

Metric

Imperial

Thermal expansion coefficient (@20°C/68°F)

5.35 µm/m°C

2.97 µin/in°F

Thermal conductivity

138 W/mK

958 BTU in/hr.ft².°F

molybdenum rod Standard Diameter Tolerances (inches)

Diameter

Black/Clean

Ground

.020 to .025

± .001

± .001

.025 to .070

± .0015

± .001

.070 to .200

± .002

± .001

.200 to .250

± .007

± .001

.250 to .437

± .007

± .0015

.437 to .750

± .010

± .003

.750 to 1.000

± .015

± .005

1.000 to 1.250

± .015

± .005

1.250 to 1.750

± .025

± .005

Application Of Molybdenum Rods

Electric vacuum parts

Steel-making additives

Gas pipes

Sidebar

lead-wire

Optical glass

Daily-use glass

Glass fiber

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