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Build Your Online Product Catalogs?
| Product Name: |
Ohmalloy-4J42 /Nilo42/ Uniseal 42 sealing alloy wire
|
| Supply Ability: |
80000 Kilogram/Kilograms per Week |
| Related proudcts |
|
| Specifications |
0.1~8mm |
| Price Term: |
FOB |
| Port of loading: |
shanghai |
| Minimum Order |
1 Kilogram/Kilograms |
| Unit Price: |
US $30 - 50 / Kilogram |
|
OhmAlloy-4J42 (Expansion alloy)
(Common Name: 42H Glass Sealing 42, Nilo42, N42, FeNi42)
4J42 alloy is mainly composed of iron, nickel elements. It is characterized with a fixed coefficient of expansion. Increase the thermal expansion coefficient and the Curie point with increase of nickel content.
4J42 alloy is widely used the structure of the sealing material in the electric vacuum industry.
Normal composition%
Ni 41.5~42.5 Fe Bal. Co - Si ¡Ü0.3
Mo - Cu - Cr - Mn ¡Ü0.8
C ¡Ü0.05 P ¡Ü0.02 S ¡Ü0.02 Al ¡Ü0.1
Typical Physical properties
Density (g/cm3) 8.12
Electrical resistivity at 20℃(&©|8486;mm2/m) 0.61
Thermal conductivity, ¦Ë/ W/(m*℃) 14.6
Curie point Tc/ ℃ 360
Elastic Modulus, E/ Gpa 147
Coefficient of expansion
¦È/℃ ¦Á1/10-6℃-1 ¦È/℃ ¦Á1/10-6℃-1
20~100 5.6 20~400 5.9
20~200 4.9 20~450 6.9
20~300 4.8 20~500 7.8
20~350 4.95 20~600 9.2
Typical Mechanical properties
Tensile Strength Elongation
*** %
490 35
The heat treatment process
Annealing Heated to 900 ¡À20℃ in a hydrogen atmosphere
Holding time, h 1 hour
cooling With speed not more than 5 ℃ / min. cooling to below 200 ℃
Style of supply
Alloys Name Type Dimension
OhmAlloy-4J42 Wire D= 0.1~8mm
OhmAlloy-4J42 Strip W= 5~250mm T= 0.1mm
OhmAlloy-4J42 Foil W= 10~100mm T= 0.01~0.1
OhmAlloy-4J42 Bar Dia= 8~100mm L= 50~1000
|
| Company: |
ohmalloy material co., ltd
|
| Contact: |
Mr. xiaofeng Qiu |
| Address: |
youyi road, baoshan, shanghai |
| Postcode: |
|
| Tel: |
66796338 |
| Fax: |
66796339 |
| E-mail: |
|
|
|
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