Fe Ni50 ®Standard Specification for Glass and ceramic Sealing alloy (UNS K95050)
Sheet Thickness:0.1mm~3.5mm
Plate Thickness:3.5mm~40.0mm
Bar Dia 5.0mm~Dia180.0mm
Pipe OD 120mm~8.0mm,ID 8.0~129mm
Wire Dia 0.1mm-Dia5.0mm
Products Application
Glass to metal seals for a wide variety of electronic tubes, hermetic packages, and automotive and industrial lamps.
Description
42 Alloy, a low expansion alloy, is very similar to Invar 36 with a slightly different Coefficient of Thermal Expansion. This nickel-iron alloy is ideal for lid, lead frames, stencil/etching, telecommunications and aircraft industry, offering a more affordable alternative to Kovar when a tight seal is not required. 42 Alloy has a virtually constant low rate of thermal expansion at temperatures up to approximately 650°F (343°C). Easily machined and formed hot or cold,
Parameter
TABLE 1 Cross Reference
Contury Name
Russia 50H
USA FeNi50
France N50
Germany Vacovit500
Japan NS-1
TABLE 2 Chemical Requirement
Element Composition,%
C≤ 0.05
Si≤ 0.30
P≤ 0.020
S≤ 0.020
Mn≤ 0.80
Al≤ 0.10
Ni 49.0-50.5
FE remainder
Notes:
1.Under the condition that the average coefficient of the linar expansion meets the requirements of the standard,the content of nickel and cobalt are allowed to deviate from the stated range.
TABLE 3 Tensile Strength of Strip
Symbol Status Tensile Strength hõþ/MPa
R annealed <590
L unannealed >820
TABLE 4 Hardness of Deep Drawn Strips
Deep-Stamping Thickness Hardness HV
Fe-Ni-Cr ≤190
Fe-Ni >2.5 ≤190
≤2.5 ≤165
TABLE 5 Coefficient of Linear Expansion
Heat Treatment of the Samples 20-300 °C 20-450 °C
To be heat treated at a temperature of 900±20
the hydrogen, hold for 1h, cool at a rate less than
5℃/min to 200℃
9.2-10.0 9.2-9.9
TABLE 6 Coefficient of Linear Expansion
20-100℃ 20-200℃ 20-300℃ 20-400℃ 20-450℃ 20-500℃ 20-600℃
9.8 9.8 9.5 5.4 9.7 10.6
Product Detail
Why Us ?
1.Specialized in manufacturing high-precision alloy for 23+ years
2.We can tailoring your unique requirements with ASTM, UNS ,GOST, standards.
3. We can produce more people cannot produce products
4. Short Lead-time
5. Leading Edge Technology
6. Good quality control in production process, ISO9001:2008, SGS, CQC, approved.
7. Excellent quality and High cost of performance
8. Available in an extensive range of stock or custom size.
9. The whole process from raw material to finished products can be traced.
10. 40000 square meters workshop, advanced facilities and test equipment .
Our Serivce
1. Free Sampe with test report
2.Small Quantity accepted , if we have stocks, we can delivery as small as few kilogram to your specification.
3.Testing services available .
4.Inspection before delivery
5.Response within 24hours
6.Good after service
