China 4j6 Fenicr Glass Sealed Alloy Wire Vacovit426 Manufacture and Factory

4j6 Fenicr Glass Sealed Alloy Wire Vacovit426

Short Description:

4 j6, 4 j47, 4 j49 at 20 ~ 400 degrees Celsius temperature range, with the expansion coefficient of similar soft glass, used for matching with corresponding soft glass sealing.This kind of alloy containing chromium, after oxidation treatment, the alloy surface generated very dense oxide film, combined with matrix and firm, and soft glass and invasive good.Therefore, to get the sealing side of high strength.Is an important sealing structure in electric vacuum industry material.

Model NO.: NiCr426

Chemical Composition: Feni42cr6

State: soft

HS Code: 75052200

Origin: Shanghai

Dia.: 0.02-5.0mm

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Chemical Composition in %, Invar

brand	Chemical composition
	Ni	Cr	Fe	C	P	Mn	B	Al	Si	S
	Ni	Cr	Fe	≤
4j6	41.5~42.5	5.4~6.3	Bal	0.05	0.02	0.25	-	0.2	0.3	0.02
4j47	46.8~47.8	0.8~1.4	Bal	0.05	0.02	0.40	-	-	0.3	0.02
4j49	46.0~48.0	5.0~6.0	Bal	0.05	0.02	0.40	0.02	-	0.3	0.02

Basic physical constants and mechanical properties of the alloy:

brand	Density g / cm3	resistivity	Curie point
4j6	8.15	0.92	270
4j47	8.19	0.55	400
4j49	8.18	0.90	340

Typical expansion character(10 -6 / ºC )
Temperature range	20~100	20~200	20~300	20~400	20~500	20~400	20~550	20~600
Expansion coefficient	6.8	7.0	7.7	9.7	11.7	3.2	11.7	12.2

Varieties		Steel type Specifications mm	Precision alloy	Resistance Alloys for electrical heating	Super alloy	Welding wire	Corrosion resistant alloy
Rods	hot rolling rods	Φ8~38mm	available		available		available
	Cold-drawn rods	≤50mm	available		available		available
	Forged rods	Φ38~350mm	available		available		available
Wires	Round wires	Φ0.3~8mm	available	available	available	available	available
Wires	Non-circle wires	Negotiation	available		available		available
Strips	Cold rolling	0.15~4×200mm	available	available	available		available
Strips	Hot rolling	4~22×200mm	available	available	available		available