Chinatungsten Could Offer High Quality Tungsten Alloy Shielding

Chinatungsten could offer shielding for laboratory equipment and associated products. They are mainly of tungsten alloy radiation shield and containment page.

You could find a variety of beta and gamma shielding - particularly suitable for users of high energy beta emitters like P-32, and those using I-125/Cr-51. They also provide a large range of shielded handling boxes and waste containment bins.

Chinatungsten would also advise that you consult with radiation protection adviser if you are not sure about your shielding requirements.

Tungsten Alloy is Suitable for Gamma Radiation Shielding

Gamma radiation and X-rays are absorbed most effectively by high-density materials. Chinatungsten high-density materials are a family of tungsten-based materials with densities 50% greater than that of lead.The high-density, good mechanical strength and excellent machinability of Chinatungsten materials make them ideal for shielding applications. A variety of sizes and shapes are available.

Property:

Tungsten content(wt%): 90-97
High density   16.0~18.5g/cm3
High strength   580~950Mpa                                    
Good corrosion-resistant
Good machining property
High thermal conductivity
Low coefficient of thermal expansion
High mass absorption coefficient

Tungsten Alloy is Superior to Traditional Shielding Material

Compared to traditional radiation shielding materials, tungsten alloys provide excellent value. A high-density alloy can provide the same energy absorption as lead using 1/3 less material! Unlike lead, you’ll also reduce administration costs by eliminating the need to obtain special licensing, it’s not required.

Clients all across the globe are taking advantage of tungsten alloy’s reliable radiation shielding properties. If you need to protect yourself, your patients or your equipment from the harmful effects of excess radiation.

Chinatungsten could offer finished machined parts as rod, bar, sheet, strip, blank and rectangular blocks.

Tungsten Alloy as Radiation Protection Materials

The radiation shielding effects of some tungsten alloy was evaluated usig ¹³³Ba(356 keV) and ¹³⁷Cs(660 keV)γ-ray sources. Tungsten carbide had about the same effect as the commonly used lead, while tungsten copper alloy gave as good a performance as tungsten. The results of transmittance measurements for these materials, as well as of their Monte-Carlo simulation, are reported.

The denser the material, the better able it is to protect from radiation. That is why tungsten alloy material absorb X-rays and gamma radiation particularly well. Lead is still the most frequently used shielding material. Because it is a very soft material, it is mostly used only in combination with support structures made of steel.

Tungsten Alloy Shielding for Plasma Accelerator

Tungsten alloy shielding for plasma accelerator is used to protect staffs from radiation. Depending on heaviest density but small capacity, tungsten alloy material is more and more popular be used for making tungsten alloy shielding to protect body from plasma accelerator radiation. Compared with lead, tungsten alloy is much smaller but with heavier density, which is very helpful for high radiation absorption. It is more than 60% denser than lead, meanwhile, it has excellent machinability, good corrosion resistance. The most important thing is that, tungsten alloy is environment-friendly.

Tungsten Alloy Radiation Focusing Ring

Compared to traditional radiation shielding materials such as lead and boron carbide, tungsten alloy radiation shieldings provide excellent density with small capacity. At the same weights tungsten alloy radiation shielding with high density alloy can provide the same energy absorption as lead using 1/3 less material.
When the tungsten alloy radiation shielding weight is certain, more density, more denser, and the thickness would be thinner. Tungsten alloy radiation shielding material could be made with thinner thickness but high absorption of radiation in high density. That is why tungsten alloy radiation shielding material is suitable for raidation shielding.

Tungsten X-ray Protection Apron

There are wolfram anodes making from tungsten powder in the X-ray machine but the patients also have to wear a tungsten X-ray protection apron made from tungsten powder when they are making panorama X-ray of teeth or other parts on the body, due to the environmental reasons this apron is made of tungsten powder dispersed. Tungsten anodes made from tungsten powder are used in the X-ray machine; modern aprons are filled with tungsten powder, calcium tungsten powder is still used as fluorescent material in X-ray films. Tungsten powder product becomes more and more popular because of its good properties.

What Are the Different Types of Tungsten Alloy Radiation Shielding?

Tungsten alloy radiation shielding is the use of tungsten alloy to protect against ionizing radiation. Radiation occurs when energy is emitted from one substance and travels out in straight waves, possibly penetrating another substance. When this energy is absorbed, it can have the effect of exciting or destabilizing atoms. If a certain radiation penetrates an animal, it can have harmful impacts on the body, sometimes causing cancer or deformities. Shielding uses specific types of material, such as a leaded glass pane, a lead apron, or packed dirt, to act as a barrier between the body and the source of radiation.

Why Choose ASTM B 777-99 for Tungsten Alloy Radiation Shielding

 Tungsten alloy radiation shielding could be manufactured as per ASTM B777-99 Standard:

1.tungsten alloy specifications cover the requirements for four classes of machinable,high-density tungsten base metal produced by consolidation of metal powder mixtures of which the composition is mainly tungsten alloy specifications. Different tungsten alloy specifications have different uses, we can provide all kinds of tungsten alloy specifications according to your requirements.This material specification may be used for bare parts or be used for parts that may be coated with other materials for protection against corrosion and abrasion.

2. Intended Use -Parts made from this material are intended for uses such as weights or counter-balances in static or dynamic balancing high-speed rotating inertia members, radiation shielding, hypervelocity impact, and vibration-damping applications. We could make products of tungsten alloy grades as your special properties of tungsten heavy alloy.

3.Special Applications -different products of tungsten alloy specifications have different applications, properties or requirements may be important. These alloys may contain elements that make them magnetic. Class 4 is not available in a non-magnetic grade. For purposes of this specification, non-magnetic characteristics of tungsten alloy specifications are defined as material having a maximum magnetic permeability of 1.05. Also for special applications involving large sections, methods for determining internal quality, such as mechanical tests on specimens from these larger sections or suitable nondestructive tests may be applied. If required, these additional tests shall be specified in the purchase order. We can offer many tungsten alloy specifications with the standard size as well as design mould especially for you.

Why Choose AMS-T-21014 for Tungsten Alloy Radiation Shielding

Chinatungsten can offer many tungsten alloy standards within the standard size or we can design and manufacture a mould especially for you. Since different tungsten alloy standards have different applications, we can also make products of tungsten alloy standards as special properties of tungsten heavy alloy, such as AMS-T-21014, which required the tungsten alloy parts having high density, good radiation absorption, well wearing resistance,etc.

Tungsten Alloy Radiation Shielding Grade-2

Here is grade for tungsten alloy radiation shielding:

AMS-T-21014

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 (%)	10-22	8-20	6-13
Hardness(HRC)	27-32	28-34	28-36

Tungsten Alloy Radiation Shielding Grades-1

Here are the grades for tungsten alloy radiation shielding:

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

Tungsten Alloy Magnetic Radiation Shielding

Tungsten magnetic radiation shielding of 70 mm dia. is usually used for radiation protection.

Density: 18-18.5 gms/cc

Composition:95%W~97%W

Sizes: Custom made

Tungsten Alloy Radiation Protection System

Tungsten alloy radiation protection system is a patented totally encapsulated shielding system. It’s unique formulation gives flexible shielding in inaccessible and restricted applications where traditional methods of shielding are difficult to provide, which is available in flat sheets of special sizes and guide tube shields of standard and custom lengths.

Tungsten Alloy Shielding is Better Than Lead

Tungsten alloy shielding is more an more popular for radiation protection. Generally speaking, the absorption rate of X-rays and gamma radiation is directly proportional to the density of the shielding material, as tungsten alloy has a high density but small capacity, tungsten is a suitable for radiation shielding. Since tungsten alloy is denser than lead, these alloy can be up to one and a half times more effective than lead, and provide extremely efficient protection from radiation sources, especially in applications where space is limited.

Tungsten alloy shielding for radiation protection.