700-1000 Mpa Tensile Strength WNiFe Alloy Plates Applied as Medical
Linear Accelerator
Tungsten Nickel Iron Alloy Description
Tungsten nickel iron alloy is an alloy composed of tungsten as the
matrix and a small amount of nickel, iron and other alloy elements.
It has the characteristics of high density (18.8g / cm3) and
adjustable, strong ability to absorb high-energy rays (1 / 3 higher
than the ray absorption coefficient of lead), low coefficient of
thermal expansion, good plasticity, high strength and elastic
modulus, good machinability and weldability. So WNiFe alloy is
widely used in radiation protection and guidance, industrial
counterweight parts, safety and defense parts, etc
Tungsten Nickel Iron Alloy Properties
1. High strength: tensile strength is 700-1000mpa;
2. Strong ray shielding ability: under the condition of the same
thickness, the ray shielding ability of tungsten alloy is more than
1.7 times that of lead. When the ray is stronger, the difference
between the two is more obvious;
3. High thermal conductivity: the thermal conductivity of tungsten
alloy is 5 times that of die steel;
4. Small coefficient of thermal expansion
5. Good shaping, processability and weldability;
6. Compared with the toxicity of lead, tungsten alloy material has
environmental protection characteristics, and the manufacturing of
radiation detector with tungsten alloy shield is not harmful to
human safety;
7. Compared with W-Ni-Cu alloy, W-Ni-Fe alloy has certain
ferromagnetism, and its mechanical properties and processing
properties are better than that of W-Ni-Cu alloy.
|
| Composition | 90%W | 93%W | 95%W | 97%W |
| State | Sinter | Vacuum | Forge | Sinter | Vacuum | Forge | Sinter | Vacuum | Sinter/Vacuum |
| Density(g/cc) | 16.85~17.25 | 17.15~17.85 | 17.75~18.35 | 18.25~18.25 |
| Hardness(HRC) | 32Max | 30Max | 40Min | 33Max | 31Max | 40Min | 34Max | 32Max | 700Min/850Min |
| Tensile Strength (Mpa) | 770Min | 900Min | 1400Max | 770Min | 910Min | 1440Max | 735Min | 920Min | 35Max/33Max |
| Yield Strength | 620Min | 620Min | 1280Max | 650Min | 650Min | 1340Max | 650Min | 650Min | ~ |
| Elongation(%) | 5Min | 15Min | 5Min | 12Min | 3Min | 3Min | 3Min | 12Min | 2Min / 6 Min |
Introduction:
The density of tungsten heavy alloy is very high. Its density is
twice of steel. Tungsten heavy alloy has low thermal coefficient
but it has high absorption ability and high-energy rays. The
tungsten heavy alloy we make conforms to ASTM B777-99 standard.
It is massively applied to balancing weight mould and high
temperature moulds. Also they can be made into protective shield
and high-energy rays. The tungsten heavy alloy conforms to ASTM B
777-99 standard.
