Ohmalloy Material Co.,Ltd
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Constantan Strip CuNi44 Copper Nickel Strip / Ribbon Thickness:0.03-8.0mm Width: 03-220mm
Constantan( Ohmalloy 049)
(Common Name: CuNi44,.Cuprothal49, Alloy 294, Cuprothal 294, Alloy 49, CuNi 102, Cu-Ni 44, Konstantan, Constantan.)
OhmAlloy049 is a copper-nickel alloy (Cu56Ni44 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C
Typical applications for OhmAlloy49 are temperature-stable potentiometers, industrial rheostats and electric motor starter resistances.
1.Product Details
| Nickel | 44 | Manganese | 1 |
| Copper | Bal. |
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 250 | 420 | 25 |
| Density (g/cm3) | 8.9 |
| Electrical resistivity at 20℃ (Ωmm2/m) | 0.49 |
| Temperature factor of resistivity(20℃~600℃)X10-5/℃ | -6 |
| Conductivity coefficient at 20℃ (WmK) | 23 |
| EMF vs Cu(μV/℃ )(0~100℃ ) | -43 |
Style of supply
| Alloys Name | Type | Dimension | |
| OhmAlloy049W | Wire | D=0.03mm~8mm | |
| OhmAlloy049R | Ribbon | W=0.4~40 | T=0.03~2.9mm |
| OhmAlloy049S | Strip | W=8~200mm | T=0.1~3.0 |
| OhmAlloy049F | Foil | W=6~120mm | T=0.003~0.1 |
| OhmAlloy049B | Bar | Dia=8~100mm | L=50~1000 |
2.Production Procedure
3.Products and Services
1). Pass: ISO9001 certification, and SO14001cetification;
2). Fine after-sale services;
3). Small order accepted;
4). Stable properties in high temperature;
5). Fast delivery;
4.Question and Answer
Q1:How can I contact with your company?
A1:We have multiple communication channels : Tel/Whatsapp/Wechat:+86-15826530281 QQ:3199874404(SPARROW)
Q2:Do you provide free samples?
A2:Yes,we can provide free samples for your testing,but buyer should bear the shipping costs.
Q3:What is your payment terms?
A3:30% in advance,balance after receiving the copy of B/L. T/T,L/C,,Paypal is OK.
Q4:What is your lead time?
A4:On normal condition,the lead time is 7 days after the payment. Special order or quantity is subject to the negotiation.