Product Details

High quality tungsten bucking bar for metal rivet

Advantages

1.High density: 16.5 -18.75 g/cm3 commonly

2.High strength of extension :700-1000MPa

3.Ability to absorb radiation: 30-40% higher than lead

4.High thermal conductivity: five times than die steel
5.Low thermal expansion coefficient: only 1/2 - 1/3 of iron or steel

6.Good conductivity; Because of its good conductivity and is widely used in lighting and electric welding industry

7.Good weldability and workability.

Due to the high proportion alloy has the excellent function, it is widely used in aerospace, aviation, military, oil drilling, electrical instrumentation, medical and other industries.

Applications

Petroleum drilling weight rod

Aerospace gyroscope

The car counter weight

Mechanical balance hammer

Balance weight ball

Golf counter weight

Darts rod
Fly hammer,ect
Standard: AMS-T-21014 & ASTM-B-777

AMS-T-21014	Class 1	Class 1	Class 2	Class 2
Composition	90W7Ni3Fe	91W6Ni3Fe	92W5Ni3Fe	93W4Ni3Fe
Density (g/cm3)	17.1±0.15	17.25±0.15	17.50±0.15	17.60±0.15
Heat Treatment	Sintering	Sintering	Sintering	Sintering
Tensile Strength (MPa)	900-1000	900-1000	900-1100	900-1100
Elongation (%)	18-29	17-27	16-26	16-24
Hardness(HRC)	24-28	25-29	25-29	26-30
AMS-T-21014	Class 3	Class 3	Class 4
Composition	95W3Ni2Fe	96W3Ni1Fe	97W2Ni1Fe
Density (g/cm3)	18.10±0.15	18.30±0.15	18.50±0.15
Heat Treatment	Sintering	Sintering	Sintering
Tensile Strength (MPa)	920-1100	920-1100	920-1100
Elongation (%)	42665	42602	42534
Hardness(HRC)	27-32	28-34	28-36

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