Wholesale Price China Iron Tungsten Alloy - Tungsten Heavy Alloy Rod – Fotma

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Wholesale Price China Iron Tungsten Alloy - Tungsten Heavy Alloy Rod – Fotma Detail:

Specifications

Tungsten Heavy Alloy Grade:
W90NiFe/W92.5NiFe/W93NiFe/W95NiFe/W97NiFe (Slightly Magnetic).
W90NiCu/W92.5NiCu/W93NiCu/W95NiCu/W97NiCu (Nonmagnetic).

Density: 16.8-18.8g/cm3.
Surface: Machined & Ground.
Standard: ASTM B777.

Diameter: 5.0mm – 80mm.
Length: 50mm – 350mm.

Tungsten Alloy Rod (2)

Tungsten High Density Alloy Advantages

High density (up to 65% denser than Lead).

Denser materials exist (pure Tungsten, Gold, platinum group metals) but their use is restricted by availability, workability and cost.

Providing mass where volume space is limited.

Concentrated weight essential where accuracy is required in placement of mass.

Placement of weight in situations where airflow has a significant impact.

Thermal Properties of Tungsten Heavy Alloys

High softening temperature.

Low thermal conductivity and low coefficient of expansion gives the material a high resistance to thermal fatigue.

Excellent soldering erosion resistance to molten aluminum. Strong at high temperatures with high thermal stability.

Tungsten Alloy Rod (1)

Tungsten High Density Alloy Mechanical Properties

● High Young’s modulus of elasticity. Does not creep when experiencing significant forces, unlike Lead.

● Despite their strength, they remain ductile and resistant to cracking.

● The hardness range of the alloys is typically 20-35 Hardness HRC.

High-Density Tungsten Based Alloy

Alloy Type(%)	HD17 90W 6Ni 4Cu	HD17D 90W 7Ni 3Fe	HD17.5 92.5W 5.25Ni 2.25Fe	HD17.6 92.5W Balance Ni, Fe, Mo	HD17.7 93W Balance Ni, Fe, Mo	HD18 95W 3.5Ni 1.5Cu	HD18D 95W 3.5Ni 1.5Fe	HD18.5 97W 2.1Ni .9Fe
MIL-T-21014	Class 1	Class 1	Class 1	-	-	Class 3	Class 3	Class 4
SAE-AMS-T-21014	Class 1	Class 1	Class 2	-	-	Class 3	Class 3	Class 4
AMS 7725 C	7725 C	7725 C	–	–	–	–	–	–
ASTM B777-87	Class 1	Class 1	Class 2	-	-	Class 3	Class 3	Class 4
Typical Density (g/cc)	17.1	17.1	17.5	17.6	17.7	18	18	18.5
Typical Density (lbs/in3)	0.614	0.614	0.632	0.636	0.639	0.65	0.65	0.668
Typical Hardness RC	24	25	26	30	32	27	27	28
Ultimate Tensile Strength Min (ksi)	110,000	120,000	114,000	120,000	125,000	110,000	120,000	123,000
0.2% Offset Yield Strength Min (ksi)	80,000	88,000	84,000	90,000	95,000	85,000	90,000	85,000
Minimum % Elongation (1″ gage length)	6	10	7	4	4	7	7	5
Proportional Elastic Limit (PSI)	45,000	52,000	46,000	55,000	60,000	45,000	44,000	45,000
Modulus of Elasticity (x106psi)	40 x 106	45 x 106	47 x 106	52 x 106	53 x 106	45 x 106	50 x 106	53 x 106
Coefficient of Thermal Expansion x10-6/0C (20-400C)	5.4	4.61	4.62	4.5	4.5	4.43	4.6	4.5
Thermal Conductivity (CGS Units)	0.23	0.18	0.2	0.27	0.27	0.33	0.26	0.3
Electrical Conductivity (% IACS)	14	10	13	14	14	16	13	17
Magnetic	No	Slightly	Slightly	Slightly	Slightly	No	Slightly	Slightly

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