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Tungsten Alloy Specifications

Mil-T-21014

Grade

Mil-T-21014

Class1

Class 1

Class 2

Class 3

Class 3

Class 4

Composition

90%W,

6%Ni4%Cu

90%W,

7%Ni3%Fe

92.5%W,

5.25%Ni

2.25%Fe

95%W,

3.5%Ni

1.5% Cu

95%W,

3.5%Ni

1.5%Fe

97%W,

2.1%Ni

0.9%Fe

Density (gm/cc;lbs/in3)

17;0.614

17;0.614

17.5;0.632

18;0.65

18;0.65

18.5;0.668

Hardness (RC)

24

25

26

27

27

28

Ultimate Tensile Strength (PSI)

110,000

120,000

114,000

110,000

120,000

123,000

Yield Strength, .2% Offset (PSI)

80,000

88,000

84,000

85,000

90,000

85,000

Elongation (% in 1″)

6

10

7

7

7

5

Proportional Elastic Limit (PSI)

45,000

52,000

46,000

45,000

44,000

45,000

Magnetic Properties

Nil

Slightly

Magnetic

Slightly

Magnetic

Nil

Slightly

Magnetic

Slightly

Magnetic

ASTM-B-459-67

Grade1

Type Ⅱ && Ⅲ

Grade1

Type Ⅱ && Ⅲ

Grade2

Type Ⅱ && Ⅲ

Grade3

Type Ⅱ && Ⅲ

Grade3

Type Ⅱ && Ⅲ

Grade4

Type Ⅱ && Ⅲ

 

NAVY MIL-T-21014: tungsten base parts, high density metal (sintered or hot pressed), coated, electrodeposited chromium.

ASTM B 777-99

Class

1

2

3

4

Tungsten Nominal %

90

92.5

95

97

Density (g/cc)

16.85-17.25

17.15-17.85

17.75-18.35

18.25-18.85

Hardness (HRC) Max

32

33

34

35

Ultimate Tensile Strength

ksi

110

110

105

100

Mpa

758

758

724

689

Yield Strength at 0.2% off-set

ksi

75

75

75

75

Mpa

517

517

517

517

Elongation, %

5

5

3

2

ASTM B777-99 Standard Tungsten Alloy Specifications for tungsten base, high-density metal

1.tungsten alloy specifications cover the requirements for four classes of machinable,high-density tungsten base metal produced by consolidation of metal powder mixtures of which the composition is mainly tungsten alloy specifications. Different tungsten alloy specifications have different uses, we can provide all kinds of tungsten alloy specifications according to your requirements.This material specification may be used for bare parts or be used for parts that may be coated with other materials for protection against corrosion and abrasion.

2. Intended Use -Parts made from this material are intended for uses such as weights or counter-balances in static or dynamic balancing high-speed rotating inertia members, radiation shielding, hypervelocity impact, and vibration-damping applications. We could make products of tungsten alloy grades as your special properties of tungsten heavy alloy.

3.Special Applications -different products of tungsten alloy specifications have different applications, properties or requirements may be important. These alloys may contain elements that make them magnetic. Class 4 is not available in a non-magnetic grade. For purposes of this specification, non-magnetic characteristics of tungsten alloy specifications are defined as material having a maximum magnetic permeability of 1.05. Also for special applications involving large sections, methods for determining internal quality, such as mechanical tests on specimens from these larger sections or suitable nondestructive tests may be applied. If required, these additional tests shall be specified in the purchase order. We can offer many tungsten alloy specifications with the standard size as well as design mould especially for you.

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