4j50 Iron Nickel Constant Expansion Alloy Wire Feni50

• Classification: Low Expansion Alloy
• Density: 8.21
• Resisivity: 0.44
• Curie Point: 500
• State: Soft
• Brand: 4j50
• Model NO.: 4j50
• Chemical Composition: Feni50
• Transport Package: Export Packing
• Specification: Can discuss
• Trademark: huona
• Origin: Shanghai
• HS Code: 72269990
• Production Capacity: 200 Ton/Month

Product Description

4j50 Iron nickel constant expansion alloy wire FeNi50

Iron nickel alloy is obtained at a given temperature range by adjusting the content of nickel internal energy and the expansion coefficient of different soft glass and ceramic matching a series of expansion alloy, its expansion coefficient and the Curie temperature increases with the increase of nickel content.The assembly is widely used in electric vacuum industry the sealing structure of the material

Chemical Composition in %, Invar

brand	Chemical composition
	Ni	Fe	C	P	Si	Co	Mn	Al	S
			≤
4j42	41.5~42.5	Bal	0.05	0.02	0.3	-	0.80	0.10	0.02
4j45	44.5~45.5	Bal	0.05	0.02	0.3	-	0.80	0.10	0.02
4j50	49.5~50.5	Bal	0.05	0.02	0.3	1.0	0.80	0.10	0.02
4j52	51.5~52.5	Bal	0.05	0.02	0.3	-	0.60	-	0.02
4j54	53.5~54.5	Bal	0.05	0.02	0.3	-	0.60	-	0.02

 
Basic physical constants and mechanical properties of the alloy:

brand	Thermal conductivity	Specific heat capacity	Density	Electric resistivity	Curie point
4j50	16.7	502J	8.21	0.44	500

 

Typical expansion character(10 -6 / ºC )
Temperature range	20~100	20~200	20~300	20~350	20~400	20~450	20~500	20~600
Expansion coefficient	9.8	9.8	9.5	9.4	9.4	9.4	9.7	10.6

4 j50 alloy is used mainly for precision impedance diaphragm, wet spring, reed relays, precision length measurement, and the corresponding soft sealing glass.



All offered "Huona(Shanghai) New Material Co., Ltd" of rolled metal products Invar differs guaranteed high quality. Customers can buy Invar alloy for the production of different types of products and rely on the high-speed supply of rolled metal.