Name: Tungsten Bar
Brand: Jmyun
SKU: 167925515

Products Description

The content of metal W in tungsten rod is about 99%, and the surface of the product shows a silver gray metallic luster. Its color changes with the different production stages: the use of powder metallurgy tungsten powder molding, molding after forging its surface has a layer of oxide, showing black; Its surface will brighten after polishing. Note: In the process of transportation, storage should be careful of their own safety, to avoid its weight caused by unavoidable damage.

Name	Tungsten Bar
Shape	Round bar
Size	2-200mm diameter *1000mm length(Or customized according to customer conditions)
Purity	99.95% tungsten
MOQ	1kg
Surface	Bright, pickling surface
Density	19.2g/cm3
Packing	wooden case
Delivery date	The spot size is generally shipped within 3 days after payment, and the customized size is generally shipped within 15-20 days

Diameter & Tolerance：

Tungsten Content	Machining	Diameter (mm)	Dia.Tolerance (mm)	Length (mm)	Length Tolerance (mm)
99.95%	Sintering rod	40-200	±3	500max	±5
	Forging rod	20-80	±2	800max	±5
	Grinding rod	2-60	±0.1	1000max	±1

Propersity of Tungsten alloy

· AMST 21014 class 1

o 90%WNiFe, 90%WNiCu

o Density : 17.0

o Hardness: 32HRC max

o Elongation: 5 - 20%

· AMST 21014 class 2

o 92.5%WNiFe, 92.5%WNiCu

o Density : 17.5

o Hardness: 33HRC max

o Elongation: 5 - 15%

· AMST 21014 class 3

o 95%WNiFe, 95%WNiCu

o Density : 18.0

o Hardness: 34HRC max

o Elongation: 3 - 10%

· AMST 21014 class 4

o 97.5%WNiFe, 97.5%WNiCu

o Density : 18.5

o Hardness: 35HRC max

o Elongation: 1 - 8%

Grade	Density	Hardness	Bending strength	Grain size	Application
SU10UF	14.80±0.05	93.5±0.5	≥3000	0.4	It can process copper, aluminum alloy, glass fiber and carbon fiber.
SU20	14.45±0.05	88.0±0.5	≥3800	0.6	Can make carbide milling cutter, drill
SU20F	14.45±0.05	88.0±0.5	≥4000	0.6	Can make carbide milling cutter, drill
SU25UF	14.45±0.05	88.0±0.5	≥4200	0.4	Make high height milling cutter, high performance drill
YG10X	14.45±0.05	88.0±0.5	≥3300	0.8	This is a universal grade, you can produce all kinds of milling cutter, drill, rotary file

Product display

Applications

1,Protection shields for nuclear radiation.

2,Balancing weights

3,The war industry with the ball core,the ball link.the shrapnel,the armor

piercing shell uses the ball

4,Substitutional material for Uranium

5,Electroheat upsetting anvil block

6,High voltage electrical contact

7,Electrodes for Resistance Welding

Tungsten bar are widely used in various fields. For example: making support lines, leading-in lines, printer needles, various electrodes and quartz furnaces, filaments, high-speed tools, automotive automatic products, sputtering targets, etc. In addition, it is also used in the military field, for example: used to replace the explosive dropped by the previous aircraft, the main principle is to put a certain amount of it into the former explosive department, from the height of tens of kilometers, hundreds of kilometers to lock the target or target area. One tungsten rod is powerful enough to penetrate the protective armor of a destroyer or an aircraft carrier, and it can sink destroyers and aircraft carriers when it reaches a certain number.

Production flow chart

Tungsten rod

Do you know the forging and annealing process of tungsten rod?

Pure tungsten bar is made of 99.95% tungsten powder, its physical properties are: density of 19.3g/cm3, melting point (liquid) is 3422°C, electrical conductivity 30% IACS Min, hardness 69HRA Min, forging and annealing process results can be obtained through the test. It has special properties such as low thermal expansion with good thermal conductivity, adequate resistance to resistance, and high elastic modulus. It is widely used in various fields, such as support lines, import lines, printer needles, various electrodes and quartz furnaces, filaments, high-speed tools, automotive automatic products, sputtering targets, heating devices with special properties, etc. It is generally prepared by powder metallurgy.

The sintered pure tungsten bar was forged and elongated with different average forging ratios and forging methods, and the forged tungsten rod was annealed under different annealing regimes. The microstructure and physical and mechanical properties of the sample were analyzed by metallographic microscope, hardness tester and density tester. The research results showed that:

1. After forging, the density and hardness of the tungsten rod will be greatly increased, and if the forging ratio is too large, the tungsten rod will crack

2.If a smaller average forging ratio is used, the tungsten rod forged at one end with one fire cannot match the tungsten rod forged at both ends with one fire, and a group of tungsten rods forged at both ends have more meticulous workmanship.

3.If the total forging ratio is 80%, you can consider using a smaller forging ratio. The tungsten rod forged at one end of one fire is basically recrystallized after annealing at 1300 ℃ for 30 minutes. However, with a larger forging ratio, the tungsten rod forged at both ends of one fire needs to be annealed at 1350 ℃ for 60 minutes to complete recrystallization. However, after annealing, the hardness of tungsten rod by both methods will become smaller. Before and during annealing, the hardness of tungsten rods forged using the first forging process is lower than that of the second. As recrystallization is completed, this difference is no longer significant.