The Materials You Need When You Need Them

Refractory Metals and Alloys: Physical & Mechanical Properties, and Specifications

 

Physical Properties

Type

Unit

Mo

Moly TZM

Ta

Nb

W

Rh

Zr

Typical Commercial Purity

 

99.95%

Mo-99.4%
Ti-.5%
Zr-.08%

99.9%

99.9%

99.95%

99.0%

99.0%

Density

cm/cc

10.22

10.22

16.6

8.57

19.3

21.03

6.53

 

lbs/in2

0.369

0.369

0.60

0.310

0.697

0.760

0.236

Melting Point

Celcius

2623

2623

3017

2477

3422

3180

1852

 

°F

4753.4

4753.4

5463

5463

6191.6

5756

3370

Boiling Point

Celcius

4612

4612

5425

4744

5644

5627

4377

 

°F

8355

8355

9797

8571

10,211

10,160.6

7911

Typical Hardness

DPH (vickers)

230

280

200

130

310

--

150

Thermal Conductivity
(@ 20 °C)

cal/cm2/cm°C/sec

--

--

0.13

0.126

0.397

0.17

--

Coefficient of Thermal Expansion

°C x 10 -6

4.9

--

6.5

7.1

4.3

6.6

--

Electrical Resistivity

Micro-ohm-cm

5.7

--

13.5

14.1

5.5

19.1

40

Electrical Conductivity

%IACS

34

--

13.9

13.2

31

9.3

--

Tensile Strength (KSI)

Ambient

120-200

--

35-70

30-50

100-500

200

--

 

500°C

35-85

--

25-45

20-40

100-300

134

--

 

1000°C

20-30

--

13-17

5-15

50-75

68

--

Minimum Elongation
(1 inch gauge
)

Ambient

45

--

27

15

59

67

--

Modulus of Elasticity

500°C

41

--

25

13

55

55

 
 

1000°C

39

--

22

11.5

50

--

--

 

 

Specifications

Type

Mo

Moly TZM

Ta

Nb

W

Rh

Zr

ASTM

B-386
B-387

B-386
B-387

B-364
B-365
B-521

B-391
B-392
B-393
B-394

B-760
(inactive)
F-288

--

B-349
B-350
B-351
B-352
B-353


Tungsten Heavy Alloy Physical Properties

ED FAGAN INC. supplies the highest quality special purpose metals and alloys for Aerospace/Aviation, Defense, Electronics, Magnetic, Medical, Lighting, Optical, Telecommunications, Ceramics, Heat Treating, and other high-technology industries.

Refractory Metals and Alloys

Ed Fagan Inc. stocks a variety of refractory metals and alloys for a wide range of applications. EFI carries:
Molybdenum
Vacuum Furnace Molybdenum
TZM Molybdenum
Tungsten
Tungsten Alloy
Tantalum
Niobium
Rhenium

And we also have a large selection of other types of specialty metals and alloys for high technology applications, including:
Controlled Expansion Alloys
Electrical/Electronic Nickel
Soft Magnetic Alloys
Hard to Find Materials