Tungsten

Falcon distributes all mill forms of Tungsten Alloys.

We can supply saw cutting, plasma cutting, shearing and slitting. The forms that are available for each grade of material is listed on our Tungsten Alloys stock list.

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Tungsten Alloys (High Density) Typical Properties and Characteristics

Tungsten Alloys (High Density) Typical Properties and Characteristics

 

90%W

*6% NI

4%Cu

90%W

7% NI

3.% Fe

92.5%W

5.25% Ni

2.25 Fe

93%W

Balance

NI Fe Mo

95%W

3.5% Ni

1.5%Cu

95%W

3.5% Ni

1.5%Fe

97%W

2.1% Ni

.9%Fe

MIL-T 21014D

Class 1

Class 1   

Class 2

*Chip
Resistant

Class 3

Class 3

Class 4

SAE AMS

7725B5

7725B

 

 

 

 

 

ASTM-B-777-87

Class 1

Class 1   

Class 2

 

Class 3

Class 3

Class 4

Density Gms/cc

17

17

17.5

17.7

18

18

18.5

Density Lbs/Cu. In

0.614

0.614

0.632

0.639

0.65

0.65

0.688

Hardness Rc

24

25

26

32

27

27

28

UTS (Psi)

110,000 

120,000

114,000

125,000

110,000

120,000 

123,000

Yield .2% Offset (Psi)

80,000

88,000

84,000

95,000

85,000

90,000

85,000 

Elongation-% in 1”

6

10

7

4

7

7

5

Proportional Elastic Limit (psi)

45,000

52,000

46,000

60,000

45,000

44,000

45,000

Modulus/Elasticity (Psi)

40×106

45×106

47×106

53×106

45×106

50×106

53×106

Coefficient of Thermal Expansion x 10-6/C (20400C)

5.4

4.61

4.62

4.5

4.43

4.6

4.5

Thermal Cond (CGS)

0.23

0.18

.2

0.27

0.33

0.26

0.3

Elec Conductivity
(%IACS)

14

10

13

14

16

13

17

Magnetic Properties

Nil

Slightly

Slightly

Slightly

Nil

Slightly

Slightly

These alloys are used where high density, strength and machinability are required.

All Falcons’ Tungsten products are produced to ISO 9002 and AS 9000.
*Typical composition. Composition can be changed as required.

Properties may vary according to size and shape.

If non-magnetic material is required, it must be specified at time of order.

Specifications

Specifications

TYPE

BAR/WIRE

SHEET/STRIP

PLATE

TUNGSTEN

AMS-7897

AMS-7898

AMS-7898

New Alloy

New Alloy

Chip Resistant Tungsten: 93% W Bal. Ni, Fe & Mo.

This alloy replaces Tungsten Carbide in most boring & grinding operations.

Available forms in stock: – Round Bar, Flat Bar, Square Bar, Sheet & Wire

Also available: Commercially Pure Tungsten, Copper Tungsten & Silver Tungsten

Machining & Finishing

Machining & finishing high-density tungsten based metal

Machining is similar to machining gray cast iron. Coolants are optional, but carbide tools are recommended in most cases.

TURNING & BORING:

Roughing-use C-2 Carbide with cutting depth of .030” to .125 and .008” – .015 feed, at 200 to 300 SFM. Finishing – .010 to .015 cutting depth and .004-.010 feed at 250-400 SFM.

DRILLNG:

Use high speed steel surface treated drills with plain points. Increased clearance angles and automatic feeds are often used to avoid binding and seizing. Carbide drills will give better tool life. Chlorinated oil is sometimes used as a coolant.

TAPPING:

Use High-speed or carbide, two flute plug spiral point taps. Use chlorinated oil or taping compound is recommended.

GRINDING:

Use aluminum oxide or silicon carbide wheels of medium hardness. 

SAWING:

When sawing, use a bi-metal coarse blade at high speeds, or a high-speed coarse blade at low speed. Coolant can be used. Material can be cut using high-speed cutoff wheels.

MILLING:

Use M-2 high-speed steel for light cuts and M-42 high-speed steel for deep cuts. Carbide cutter inserts will extend tool life. We recommend when using carbide, feeds of .007-.01 5 per tooth at speeds of 200-400 SFM for roughing, and when finished, feeds of .003-.01 0” per tooth 300-700 SFM. Our high-density tungsten alloys are not heat treatable; however, stress relieving is sometimes done on machined parts. We suggest heating 600F in air for 2 hours and air cool in air or heating in a protective atmosphere at 900F for 30 minutes. 

The material’s characteristics and its low thermal expansion allow very close tolerances and fine finishes.

Machining Available for Tungsten Alloys:

“State of the art” machine shop can produce to near net/net, and finished parts as per your drawings.


Grades Available

Class 1

Class 1

Class 1 is a commercially pure tungsten. It has excellent corrosion resistance and good mechanical properties.

 

CHEMICAL COMPOSITION %

MN

S

SI

NI

FE

CU

.015
MAX

.15 MAX

.010
MAX

.35
MAX

99 MIN

.40 MAX

.25 MAX

 

REPRESENTATIVE MECHANICAL PROPERTIES, ANNEALED CONDITION, PSI

TENSILE

YIELD

ELONGATION

HARDNESS

 

55,000

15,000

40

90-120 BHN

 

SPECIFICATIONS

BAR:
ASTM B160

PLATE:
ASTM B162

SHEET/STRIP:
ASTM B 162



FORGING:
ASTM B160

TUBE/PIPE:
ASTM B161
ASTM B163

Class 2

Class 2

This data sheet is under construction. Contact us for more info.

Class 3

Class 3

This data sheet is under construction. Contact us for more info.

Class 4

Class 4

This data sheet is under construction. Contact us for more info.

Contact Falcon Metals and Forgings

 1-800-631-0728
NJ: 201-670-8300
CANADA: 800-544-5501
 Fax: 201-670-0033

 query@falcon-metals.com

39 Hewson Ave.
Waldwick, NJ 07463 USA