Fabricated Tungsten Alloys Sinker Bars CNC Machining Components

• After-sales Service: a Full Two-Year Warranty
• Warranty: a Full Two-Year Warranty
• Manufacturing Process: CNC Milling
• Surface Treatment: Machining
• Operation Pressure: Vacuum
• Material: Tungsten Alloy
• Model NO.: TS003
• Density: 16.85~17.30/17.15~17.85/17.75~18.35 18.25~18g/Cc
• Tungsten Content %: 90 92.5 95 97
• Ultimate Tensile Strength Ksi(MPa): 110 (758), 110(758), 105(724), 100(689
• Elongation %: 5,5, 3, 2
• Yield Strength Ksi (MPa): 517 (75)
• Hardness (HRC): 32 33 34 35
• ASTM B777: Class 1, 2, 3, 4
• Transport Package: Export Wooden Case with Foam Inside
• Specification: Cutomized sizes or according to drawings
• Trademark: Kefeng
• Origin: China
• HS Code: 81019990
• Production Capacity: 3000kgs Per Month

Product Description

Xi'an Kefeng Powder Metallury Co., as one of the Chinese leading producers of refractory metals of tungsten and molybdenum, our tungsten alloys machining products has played a key material role in a wide variety of applications including balance weights, radiation protection, vibration absorbers, heat transfer and drilling bars. It has the highest melting point of any metal and its high density is equaled by gold, platinum and a few other rare expensive metals.


Our 90W, 93W, 95W and 97W with a percentage of 10%, 7%, 5% and 3% amounts of nickel and iron or nickel and copper offer a solution in a various range of applications requiring concentrated weight or density in a limited space.  Our lead-free components meet legal requirements and recommendations to protect the environment.

Characteristics

Kefeng heavy tungsten alloy material possess the highest melting point of all metals and suitable for extremely high-temperature environment. It is also characterized by a uniquely low coefficient of thermal expansion and a very high level of dimensional stability. Kefeng's high-density balance weights are compact products ideal for applications where space is at a premium. Based on tungsten heavy alloys (WHA) with densities over 60% higher than lead, our balance weights empower manufacturers with small-form ballast for maximum weight in the smallest space.

- High thermal conductivity
- Low coefficient of thermal expansion
- Stability in dimension under extremely high temperature environments
- High density, more than twice the steel
- The hardest, most stable and most heat-resistant metals
- Outstandingly high melting temperature
- Fine machinability, whne it is alloyed with copper, nickel, iron to form tungsten-heavy alloys

Application

Fabricated Tungsten Alloys Enhance Oil and Gas Drilling

The high density of tungsten alloys materils is critical to the radiation shielding and are extremely beneficial for sinker bar applications. These high density weights are attached to the down hole logging tool assemblies in order to add the extra weight to help the tool properly descend through the heavy borehole fluids. Sinker Bars Mechanical properties of tensile strength, ductility and hardness plus other elemental metals, create a combination of tungsten alloy materials that have found wide acceptance where a concentrated mass is required in a limited space. Tungsten alloys WHA guarantee the strength and stability needed for the tough oil and gas drilling process.



Technical Parameter
 

Tungsten Heavy Alloys- WHA	WNiFe (ASTM B777, AMS-T-21014)				WNiCu (ASTM B777, AMS-T-21014)
Tungsten Content %	90W	93W	95W	97W	90W	93W	95W
Density g/cm3)	16.85~17.30	17.15~17.85	17.75~18.35	18.25~18.85	16.85~17.30	17.15~17.85	17.75~18.35
Tensile Strength (MPa)	758Min	758Min	724Min	689Min	648Min	648Min	648Min
Elongation (%)	5Min	5Min	3Min	2Min	2Min	2Min	1Min
Hardness (HRC)	32Max	33Max	34Max	35Max	32Max	33Max	34Max
Yield strength(MPa)	517Min	517Min	517Min	517Min	517Min	517Min	517Min