CuNi40(6J40)

Constantan is CuNi40,also named 6J40,it is a resistance alloy which is mainly made up of copper and nickel.

It has the low resistance temperature coefficient,wide working temperature scope(500 below),good machining property,anti-corrosive and easy braze welding.

The alloy is non-magnetic. It is used for electrical regenerator's variable resistor and the strain resistor,
potentiometers, heating wires, heating cables and mats. Ribbons are used for heating of bimetals. Another field of application is manufacturing of thermocouples because it develops a high electromotive force (EMF) in association with others metals.

Copper nickel alloy series: Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23,CuNi30, CuNi34, CuNi44.

Size dimension range:

Wire: 0.1-10mm

Ribbons: 0.05*0.2-2.0*6.0mm 

Strip: 0.05*5.0-5.0*250mm 
 

Chemical Composition:

Physical Properties: 

FeCrAl alloy series: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc

NiCr alloy series: Cr20Ni80,Cr30Ni70,Cr20Ni35,Cr20Ni30,Cr15Ni60 and etc.

CuNi series: CuNi1,CuNi2,CuNi6,CuNi10,CuNi23,CuNi30,CuNi44,Monel400,Constantan and etc.

High_temperature alloy series: GH131,GH140,GH36,GH2706,GH2901,GH3625,GH3536,GH4169 and etc.

Welding wire series:HGH2132,HGH1040,HGH3030,HGH4033,ER6040.ERNi-1,ERNiCrMo-3 and etc.

Corrosion resistance alloy series: Incoloy800H,Incoloy825,Inconel600,Inconel690,Inconel625 and etc.

Precision alloy series: 1J33,3J1.3J9.4J28.4J29.4J32.4J33.4J36.4J45.4J50 and etc.

How can I contact with your company?

We are always ready to serve you via Email, Telephone, Fax, Skype, Whatsapp or Mobile telephone.

Tel:+86-511-86476827
Fax:+86-511-86475088

Skype: diana19850329

Whatsapp: +86-18952950953

Mobile: +86-1895-2950-953

What is your working time?
Monday-Saturday : 7:30AM-17:00PM (Beijing time, GMT+08.00)
We have public holiday during May.1-3, Oct.1-7 and Chinese New Year holiday . For detail, please see our update holiday notice. During these period, if you have a demand, Please send me an email.

Do you provide free samples?
Yes, we can provide a free sample for testing,buyer should bear all the shipping costs.

What is your payment terms?
T/T,L/C,D/A,D/P,Western Union,MoneyGram,Paypal 

We are doing the best to match your demand.

What is the lead time?

Usually sample lead time is 7 days after payment has been confirmed.

Normal order is 10-30days,it depends on customers’ quantity.

Anyway,we try to offer good-quality products as soon as possible.