Iron nickel expansion alloy wire, China Suppliers and Manufacturers

Iron nickel expansion alloy wire

Supplier Info

Shenyang Tianzhong Electrical Alloy Co., Ltd.

[China Supplier]

Contact Person : Mr. Duan Daniel

Tel : 86-24-29808168

Fax : 86-24-89489057

Product Detail

Good sealing material Standard coefficient of Linear Expansion High Machinability Easy welding

Product info

Product name: Iron nickel expansion alloy wire

Other names: nickel iron alloy wire; nickel alloy welding wire

ApplicationRange

The products are broadly used as lead and structural materials in electronic tube, transistor and integrated circuit.Within certain range of temperatures, nickel iron expansion alloys approach the coefficient of glass, ceramics, and other similar in-sealing materials, to achieve matched sealing; therefore, nickel iron expansion alloys are also called seal alloys.

The description of products

1) The chemical composition:

Brand	chemical composition											Executive standard
	C	P	S	Mn	SI	AL	B	Co	Ni	Cr	Fe
	Less than								Ni	Cr	Fe
4J42	0.05	0.020	0.020	0.80	0.30	0.10	-	1.0	41.5-42.5	-	remain	YB/T5235-2005
4J45	0.05	0.020	0.020	0.80	0.30	0.10	-	-	44.5-45.5	-	remain
4J50	0.05	0.020	0.020	0.80	0.30	0.10	-	-	49.5-50.5	-	remain
4J6	0.05	0.020	0.020	0.25	0.30	0.20	-	-	41.5-42.5	5.50-6.30	remain
4J47	0.05	0.020	0.020	0.40	0.30	-	-	-	46.8-47.8	0.80-1.40	remain
4J49	0.05	0.020	0.020	0.40	0.30	-	0.02	-	46.0-48.0	5.00-6.00	remain

2) Size and Tolerances

diameter

>0.10-0.20

>0.20-0.30

>0.30-0.50

>0.50-1.50

>1.50-3.00

>3.00-7.00

Executive

standard

tolerance

0.005

0.008

0.010

0.015

0.020

0.030

GB/T14985-2007

3) Properties of Products

Brand	Sample heat treatment system	Coefficient of Linear Expansion			Executive standard
Brand	Sample heat treatment system	20-300	20-400	20-450	Executive standard
4J42	In hydrogen atmosphere the specimens are heated to the temperature of 900±20°C,,hot insulation 1h,cool off to the degree below 200 °C,discharge	4.0-5.0	-	6.5-7.5	YB/T5235-2005
4J45		6.5-7.2	6.5-7.2	-
4J50		9.2-10.0	9.2-9.9	-
4J6	In hydrogen atmosphere the specimens are heated to the temperature of1100±20°C,,hot insulation 15 min cool off to the degree below 200 °C,discharge	7.6-8.3	9.5-10.2	-
4J47		-	8.1-8.7	-
4J49		8.6-9.3	9.4-10.1	-

Product photos

Qualified certificates

Iron nickel expansion alloy wire