Fe-Ni-Co is ternary alloy three-partalloy, curie point up to 300℃. Low coefficient of expansion between -20~300℃, under the -60℃ austenite and martensite maintain the same. In the atmosphere, water and seawater has good corrosion resistance.
Forms: Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube

Description

Fe-Ni-Co is ternary alloy three-partalloy, curie point up to 300℃. Low coefficient of expansion between -20~300℃, under the -60℃ austenite and martensite maintain the same. In the atmosphere, water and seawater has good corrosion resistance.

Application

Mainly used in the manufacture of requirements between -50 ~ 300℃, applied in high precision instrument parts and electronic device.

parameter

Typical chemistry:

C	Si	P	S	Mn	Ni	Co	Fe
≤
0.05	0.15	0.020	0.020	0.25	32.4-33.4	7.00-8.00	Balance

Physical property:

Heat Treatment of the Samples	Mean Coefficient of Linear Expansion
	20～l00℃	20～300°C
To heat the semi-finished products samples to 840±10°C, hold for 1hour, and quench in the water. Machine the samples to finished samples. And heat at 315±10℃ for 1h, furnace or air cool.		≤2.0

Typical Coefficient of linear expansion(/10^-6K^-1):

20~50℃	20~100℃	20~200℃	20~300℃	20~400℃
1.4	1.3	1.2	1.7	4.5

Size Range

Sheet	Thickness:0.10mm~3.50mm, width: ≤300mm
Plate	Thickness:3.5mm~4.0mm, width: ≤300mm
Round wire	Thickness:0.10mm~5.0mm
Flat Wire	Dia 0.5mm~Dia 5.0mm, length≤1000
Rod	Dia 5.0mm~Dia 8.0mm, length≤2000
	Dia 8.0mm~Dia 32.0mm, length≤2500
	Dia 32.0mm~Dia180.0mm, length≤1000
Capillary	OD 8.0mm~1.0mm,ID 0.1~8.0 length≤2500
Pipe	OD 120mm~8.0mm,ID 8.0~129 length≤4000

Condition: (With max tolerance) cold rolled, cold drawn, hot rolled , hot forging ,peeled turned ,bright ,bright annealed