Alloy36®Standard Specification for Iron-Nickel-Cobalt Alloys for Low Thermal Expansion Applications
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
This alloy has been used for applications where dimensional changes due to temperature variation must be minimized such as in radio and electronic devices, aircraft controls, optical and laser system, etc.
Description
Invar (also know as Invar 36, NILO 36, Pernifer 36, and Invar Steel) is a low expansion alloy consisting of 36% Nickel, balance Iron. Invar Alloy exhibits extremely low expansion around ambient temperatures, making Invar Alloy particularly useful in applications where minimum thermal expansion and high dimensional stability is required, such as in precision instruments like optoelectronic devices, optical and laser benches, electronics, and other kinds of scientific instruments.
Parameter
TABLE 1 Cross Reference
Contury Name 1 Name 2 Name 3
Russia 36H 36H-BN
USA Invar Nilvar Unipsan36
Japan Cactus LE
France Invar standard Fe-Ni36
Germany Vacodil36 Nilos36
Uk Invar Nilo36 36Ni
TABLE 2 Chemical Requirement
Element Composition,%
C ≤ 0.05
Si≤ 0.30
P≤ 0.020
S≤ 0.020
Mn≤ 0.2-0.6
Ni≤ 35.0-37.0
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.
2.the shape and dimensions of the alloys are in compliance with GB/T14985
TABLE 3 Physical Requirement
Property Target
Density 8.1 g/cm3
Curie temperature 230°C
Melting Point 1430 °C
Resistance 0.49μΩ.m
TABLE 4 Coefficient of Linear Expansion
Heat Treatment of the Sample 20-100 °C 20-300 °C
To heat the semi-finished products samples to 840±10°C,
hold for1hour, and quench in the water.
Machine the samples to finished samples.
And heat at 315±10℃ for 1h, furnace or air cool. 1.5
TABLE 5 Coefficient of Linear Expansion Sample 1. 25.12mm Sample 2. 24.70mm (ø6-ø10mm bar ±0.1)
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
