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Описание и отзывы


 Competitive price good quality Tungsten alloy bucking bars

for Aircraft Riveting Tools

Aerospace tools Tungsten bucking bar

 tungsten bucking bar-20tungsten bucking bar-21tungsten bucking bar-10.jpgtungsten bucking bar-28.jpg

Product Description

1)Tungsten bucking Details: 


Tungsten bucking bar are placed behind work surfaces to provide a backing member in applying impact fasteners and including intermitted tool head and handle parts with a low-recoil impact-absorbing spacer provided there between to take shock loads in compression and shear.


2)Tungsten alloy bucking bar dimensions:


The size and weight of tungsten bucking bars depend on the size and alloy of the rivet to be driven. Under certain circumstances, and for specific rivet installations, specially designed bucking bars can be manufactured.


3)Tungsten alloy bucking bar applications:


Bucking bars are used on the backside of a metal rivet to counter the force of the hammering and to create bucktail. Bucking bar also can be used to absorb the force of rivet, reducing the vibration of bucking.



4) Material Grade & Physical properties:

Tungsten Heavy Metal Grade Chart
MIL-T-21014 Rev DClass 1Class 2Class 3Class 4Class 1Class 2Class 3
SAE-AMS-T-21014Class 1Class 2Class 3Class 4Class 1Class 2Class 3
ASTM B777-07Class 1Class 2Class 3Class 4Class 1Class 2Class 3
AMS 7725 C7725 C   7725 C  
Matrix (wt. %)90.0% W92.5% W95.0% W97.0% W90.0% W92.5% W95.0% W
Binder (wt. %)10.0% Ni-Fe7.5% Ni-Fe5.0% Ni-Fe3.0% Ni-Fe10.0% Ni-Cu7.5% Ni-Fe5.0% Ni-Cu
Nominal Density (g/cm3)16.85-17.2517.15-17.8517.75-18.3518.25-18.8516.85-17.2517.15-17.8517.75-18.35
Nominal Density (lb/in3)0.6140.6320.6500.6680.6140.6320.650
Typical Hardness (Rc)26262830262628
Ultimate Tensile Strength - Min. (psi)110,000110,000105,000100,00094,000110,00094,000
0.2% Offset Yield Strength - Min. (psi)75,00075,00075,00075,00075,00075,00075,000
Magnetic CharacteristicsSlightly magneticSlightly magneticSlightly magneticSlightly magneticNonmagneticNonmagneticNonmagnetic


Product Photos:

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Company Information

Shaanxi Xinheng Rare Metal Co.,Ltd was established in 2001, it has been in rare metal field for more than 10 years and we provide high quality with pretty completive price,our major products including tungsten copper,tungsten nickel iron alloy ball, shot,cylinder,cube,tube,pure tungsten,molybdenum wire, plate, crucible, tube, rod, foil, sputtering target,machined parts,heating elements etc.


Packaging & Shipping



Our Services

Come to Xinheng your best choice




1 Enjoy the source of supply, gain the best price.

2 Certificate ISO9001:2008 is available to assure the quality.

3 Timely delivery upon your requirement.

4 Experienced technician and sales team will assure you quality and good services.

5 As larger order you play, as bigger discount you will get.

Welcome to visit our factory at any time


Positive feedback and views from our customers





1 Are you a factory or trading company?

We are the manufacturer.

2 How long is your delivery time?

3-5 days in stock,if not, 15-30 days

3 Can I have a sample for that?

Yes, we provide sample for free, you just take charge the shipping cost and bank charge.

4 What information should I let you know if I want to get a quotation?

The size and purity of the tungsten shot and the quality

6 What’s the quality control in your company?

We have ISO:9001 certificate, we must inspect our production strictly by our QC before shipping.
7 Can I negociate the order?

Yes, we could offer discount upon your bulk orders.

7.587 s.