Customized Tungsten Alloy Machined Parts for Oil Gas Petroleum Drilling Components

• Customization: Available
• Application: Aviation, Electronics, Industrial, Medical, Chemical
• Standard: ASTM
• Model NO.: TC003
• Alloy: Alloy
• Shape: Rectangular
• Type: Customized Sizes or According to Drawings
• Supply State: Sintered, Forged and Vacuum Treatment
• Customized: Sheet/Plate/Foil/Strip According to Drawi
• Material: 90%-97%Wnife or 90%-97%Wnicu
• Grade: ASTM B777-15 AMS 7725ctams T-21014
• Maximum Length: 800X170X1.5mm
• Density: 16.85~17.30g/Cc, 17.15~17.85g/Cc, 18.25~18.85g/Cc
• Ultimate Tensile Strength: 758MPa, 724MPa, 689MPa
• Class: 1, 2, 3, 4
• Yield Strength: 517MPa
• Elongation: 5%, 3%, 2%
• Nonmagnetic Alloys: Ultimate Strength 648MPa, 648MPa, Na
• Nonmagnetic Yield Strength: 517MPa, Na
• Nonmagnetic Elongation: 2%, 1%, Na
• Transport Package: Export Wooden Box with Foam Inside
• Specification: Standard sizes or customized
• Trademark: Kefeng
• Origin: China
• HS Code: 81019910

Product Description

Tungsten heavy alloy (tungsten nickel iron, WNiFe & tungsten nickel copper, WNiCu) contains 90%-97% tungsten in combination with small amounts of the other metals. Beginning in powder form, the desired elements are alloyed in a compacting and sintering process.  Tungsten nikel iron contains 1%~3% of iron and 2%~7% of nickel composited. The 1% to 3% of iron additive is responsible for significant differences in tungsten alloys containing nickel iron exhibit, comparing tungsten alloys containing nickel copper. Firstly tungsten nickel iron is ferromagnetic material because of the iron. Iron imparts other special attributes to tungsten nickel iron, such as its comparatively higher density, melting point, ductility, and strength. By these excellent properties, tungsten nickel iron alloys have better high-temperature strength and higher cold-work deformation rate than tungsten nickel copper.
Tungsten nickel copper is consist of 1% to 7% of Ni and 0.5% to 3% of Cu.  Non-magnetic and high conductivity are two properties of tungsten alloys with nickel copper binders. Tungsten nickel copper alloys are preferable material in applications such as aerospace and electronic devices requiring non-magnetic working conditions and high thermal and electrical conductivities.
Characteristics and features

Different sizes with high density, high melting point, high hardness, excellent wear resistance, high ultimate tensile strength , good extension, low vapor pressure, heat resistant, good thermal stability, easy processing, corrosion resistance, good shock resistance, high radiation absorption capacity, excellent impact resistance and crack resistance, and non-toxic environmental protection Is consistent with international environmental protection standards.



Application

Tungsten alloy sheets and plates with ASTM B777 and AMS-T-21014 are usually used to making the parts of shielding and target to avoid the radiation.  It can be found in areas of steelmaking, mining, aerospace, medical industries, oil and gas and other high technology fields. 

With its distinctive high density of 16.5-19.0 g/cm3 tungsten heavy alloys are the most important industrial property. The density of tungsten is two times higher than steel and 1.5 times higher than lead. Although many other metals such as gold, platinum, and tantalum, have a comparable density to heavy tungsten alloy, they are either over expensive to obtain or exotic to the environment. Combined with the high machinability and high module elasticity, the density property makes the tungsten heavy alloy to be capable of being machined into a variety of density needed components in many industrial fields. Given an example of counterweight. In a very limited space, a counterweight made of tungsten nickel copper and WNiFe is the most preferred material to offset the gravity change caused by off-balance, vibration, and swinging.

As to the Radiation Absorption application, another considerable advantage of tungsten heavy alloy is radiation shielding which is also associated with the high-density property of tungsten alloy.  The radiation shielding effect of one material will go up along with a rising in its density. Due to this property, WNiCu has been widely used in radiation shielding.  The radiation absorption capacity is one time higher than the lead-based material.
Tungsten alloy shield has one time higher radiation absorption capacity than the lead shield. On the other hand, tungsten heavy alloy is non-toxic to the environment. For radiation shielding application, the absorbing capacity to gamma radiation and X-ray radiation is 30% to 40% higher than lead materials. The component is 25% to 50% less weight than lead. Meanwhile, it relieves the concern of cost caused by waste processing and toxic threaten.

Kefeng's Tungsten Alloy products have many valuable properties associated with the high hardness and resistance have been used in a large number of applications which belongs to refractory metal alloys that are extraordinarily resistant to heat and wear. This refractory metal has been primarily used to make components that required high wearing resistance such as machining tools including lathes and dices.  It gets a little reduction in its characteristics even at high temperatures and has excellent wear resistance, so they are used for the machining tools such as lathes, milling machines and manufacturing automobile parts such as engines, transmissions, steering that are applied to the improvement of machining accuracy.

• Low thermal expansion
• High thermal and electrical conductivity
• High arc resistance
• Low consumption

Technical parameters

Tungsten heavy alloy	WNiFe (ASTM B777, AMS-T-21014)				WNiCu (ASTM B777, AMS-T-21014)
Designation	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

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