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FeNi Nickel Iron Alloy Precision 0.5mm Invar 36 Wire For Sealing Precision Instrument

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FeNi Nickel Iron Alloy Precision 0.5mm Invar 36 Wire For Sealing Precision Instrument

Brand Name : TANKII

Model Number : Invar 36

Certification : ISO9001 SGS

Place of Origin : Shanghai, China

MOQ : 20KG

Price : negotiable

Payment Terms : L/C, T/T, Western Union

Supply Ability : 100 Tons per month

Delivery Time : 7-20 days

Packaging Details : Spool + Carton + Wooned Case

Model NO. : invar 36 wire

Material : Fe- Ni Alloy

Surface : Smooth and Bright

Condition : Soft, 1/2h. Hard

Diameter : 0.02- 5.0mm

Sample : Free

HS Code : 75125000

Density (g/cm3) : 8.1

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FeNi Nickel Iron alloy precision 0.5mm Invar 36 Wire for Sealing Precision Instrument

INVAR 36 is a nickel-iron, low expansion alloy containing 36% nickel. It maintains nearly constant Dimensions Over the range of normal atmospheric temperatures, and has a low coefficient of expansion from cryogenic temperatures to about 500° F. The alloy also retains good strength and toughness at cryogenic temperatures.

INVAR 36 can be hot and cold formed and machined using processes similar to

austenitic stainless steels. INVAR 36 is weldable using Filler Metal CF36 which is

available in bare wire for both the GTAW and GMAW process.

Chemical composition

composition % Fe Ni Mn C P S SI
content min Bal 35.0 0.2
max 37.0 0.6 0.05 0.02 0.02 0.3

physical properties

Density (g/cm3) 8.1
Electrical resistivity at 20ºC(mm2/m) 0.78
Temperature factor of resistivity(20ºC~200ºC)X10-6/ºC 3.7~3.9
Thermal conductivity, λ/ W/(m*ºC) 11
Curie point Tc/ ºC 230
Elastic Modulus, E/ Gpa 144
Melting point ºC 1430

Coefficient of expansion

θ/ºC α1/10-6ºC-1 θ/ºC α1/10-6ºC-1
20~-60 1.8 20~250 3.6
20~-40 1.8 20~300 5.2
20~-20 1.6 20~350 6.5
20~-0 1.6 20~400 7.8
20~50 1.1 20~450 8.9
20~100 1.4 20~500 9.7
20~150 1.9 20~550 10.4
20~200 2.5 20~600 11.0


Typical Mechanical properties

Tensile Strength Elongation
Mpa %
641 14
689 9
731 8


Temperature factor of Resistivity

Temperature range, ºC 20~50 20~100 20~200 20~300 20~400
aR/ 103 *ºC 1.8 1.7 1.4 1.2 1.0

The heat treatment process
Annealing for stress relief Heated to 530~550ºC and hold 1~2 h. Cold down
annealing In order to eliminate hardening, which be bring out in cold-rolled, cold drawing process. Annealing needs heated to 830~880ºC in vacuum,hold 30 min.
The stabilization process
In protective media and heated to 830 ºC, hold 20min. ~ 1h, quench
Due to the stress generated by quenching, heated to 315ºC,hold 1~4h.

Precautions
Can not be hardened by heat treatment
Surface treatment can be sandblasting, polishing or pickling.
Alloy can be used 25% hydrochloric acid pickling solution at 70 ºC to clear oxidized surface

FeNi Nickel Iron Alloy Precision 0.5mm Invar 36 Wire For Sealing Precision Instrument


Product Tags:

Precision FeNi Nickel Iron Alloy Wire

      

Sealing Precision Instrument Invar 36 Wire

      

0.5mm Nickel Iron Alloy Wire

      
China FeNi Nickel Iron Alloy Precision 0.5mm Invar 36 Wire For Sealing Precision Instrument wholesale

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