Low Expansion Ferro Nickel Alloy Invar 36 Bar Round Rods FeNi36 /4J36

Product Details:

Place of Origin:	Jiangsu,China
Brand Name:	BLM
Certification:	ISO
Model Number:	BLM-S

Payment & Shipping Terms:

Minimum Order Quantity:	100kgs
Price:	Negtation
Packaging Details:	Packing with wooden box
Delivery Time:	25days
Payment Terms:	T/T
Supply Ability:	5 tons per month

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Detailed Product Description

Place Of Origin:	Jiangsu,China	Type:	Invar 36
Application:	Electric Industry	Material:	4J36
Size:	Standard Or According To Customers' Drawings	Surface:	Bright
High Light:	Low Expansion Invar 36 Bar , Ferro Nickel Alloy Invar 36 Bar , Round Rods Invar 36 Material

High Quality Low Expansion Ferro Nickel Alloy FeNi36 /4J36 Round Rods Invar 36 Bar

1 . Description

4J36 (Invar), also known generically as FeNi36 (64FeNi in the US), is a nickel–iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α).

4J36 (Invar) is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and antimagnetic watches. In land surveying, when first-order (high-precision) elevation leveling is to be performed, the Level staff (leveling rod) used is made of Invar, instead of wood, fiberglass, or other metals. Invar struts were used in some pistons to limit their thermal expansion inside their cylinders.

2 . Normal composition%

Ni	35~37.0	Fe	Bal.	Co	-	Si	≤0.3
Mo	-	Cu	-	Cr	-	Mn	0.2~0.6
C	≤0.05	P	≤0.02	S	≤0.02

3 . Typical Physical properties

Density (g/cm3)	8.1
Electrical resistivity at 20℃(Ωmm2/m)	0.78
Temperature factor of resistivity(20℃~200℃)X10-6/℃	3.7~3.9
Thermal conductivity, λ/ W/(m*℃)	11
Curie point Tc/ ℃	230
Elastic Modulus, E/ Gpa	144