Shanghai Tankii Alloy Material Co.,Ltd
| Payment Terms | Western Union, T/T, L/C |
| Supply Ability | 20,000kg/Week |
| Packaging Details | Strip/Wire/Ribbon diameter 0.005mm-1.0mm packing in spool, big than 1.50mm packing in coil |
| State | Soft annealled or Hard |
| Sample supply | small sample supply is available |
| Conductor Material | Solid bare copper |
| Chemical Composition | Cu, Mn, Ni |
| constantan resistivity | 0.48±0.03 |
| constantan Max. working temp | ≤500 |
| Brand Name | TANKII |
| Model Number | Constantan |
| Certification | ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | Western Union, T/T, L/C | Supply Ability | 20,000kg/Week |
| Packaging Details | Strip/Wire/Ribbon diameter 0.005mm-1.0mm packing in spool, big than 1.50mm packing in coil | State | Soft annealled or Hard |
| Sample supply | small sample supply is available | Conductor Material | Solid bare copper |
| Chemical Composition | Cu, Mn, Ni | constantan resistivity | 0.48±0.03 |
| constantan Max. working temp | ≤500 | Brand Name | TANKII |
| Model Number | Constantan | Certification | ISO |
| Place of Origin | China | ||
| High Light | soft magnetic alloy ，precision tubing ，kovar alloy | ||
Copper nickel alloy includes : Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19,
CuNi23CuNi30, CuNi34, CuNi44.
1. Constantan
Product Details:
Grade: 6J40 also known as cuni40
Nature: With 40% nickel, 1.5% copper manganese alloy
Constantan is a type of resistance alloy, which is made up of copper and nickel as the main components.
It has a low temperature coefficient of resistance (TCR), and a wide operating temperature range (below 500°C). It
has good properities on mechanical working, high resistance of corrosion. It is used for variable and strain resistance
of corrosion. It is used for variable and strain resisitance elements in alternative instruments.
Our products have the following features: Stable performance, high resistivity, high working temperature, allowable high surface load, small specific gravity and reasonable price.
2. constantan dimension available
Wire: 0.018-10mm Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.005*5.0-5.0*250mm
Bars: OD 4-100mm
3. Chemical composition and main properties of constantan
| Name | Code | Main Composition (%) | Density (g/mm2) | |||
| Cu | Mn | Ni | Cr | |||
| Constantan | 6J40 | Bal. | 1-2 | 39-41 | - | 8.9 |
| Type | (20º C ) Resistivity (μ Ω. M) | (20º C ) Temp. Coff. of Resistance (α×10-6/°C) | (0-100º C ) Thermal EMF vs. Copper (μV/º C )
| Max. Working Temp.(º C )
| Elongation (%) | Tensile Strength (Mpa) | |
| Constantan | 6J40 | 0.48 ±0.03 | +40 | 45 | ≤500 | ≥15 | ≥390 |
| Charact eristic | Resistivity ( 200C μΩ.m) | Max.working Temperature ( 0C) | Tensile Strength (Mpa) | Melting point (0C) | Density ( g/cm3) | TCR x10-6/ 0C (20~600 0C) | EMF vs Cu (μV/ 0C) (0~100 0C) |
| Alloy Nomenc lature | |||||||
| NC003 (CuNi1) | 0.03 | 200 | 210 | 1085 | 8.9 | <100 | -8 |
| NC005 (CuNi2) | 0.05 | 200 | 220 | 1090 | 8.9 | <120 | -12 |
| NC010 (CuNi6) | 0.1 | 220 | 250 | 1095 | 8.9 | <60 | -18 |
| NC012 (CuNi8) | 0.12 | 250 | 270 | 1097 | 8.9 | <57 | -22 |
| NC015 (CuNi10) | 0.15 | 250 | 290 | 1100 | 8.9 | <50 | -25 |
| NC020 (CuNi14) | 0.2 | 300 | 310 | 1115 | 8.9 | <30 | -28 |
| NC025 (CuNi19) | 0.25 | 300 | 340 | 1135 | 8.9 | <25 | -32 |
| NC030 (CuNi23) | 0.3 | 300 | 350 | 1150 | 8.9 | <16 | -34 |
| NC035 (CuNi30) | 0.35 | 350 | 400 | 1170 | 8.9 | <10 | -37 |
| NC040 (CuNi34) | 0.4 | 350 | 400 | 1180 | 8.9 | 0 | -39 |
| NC050 (CuNi44) | 0.5 | 400 | 420 | 1200 | 8.9 | <-6 | -43 |
4. cuni resistance alloy application
CuNi alloy wires and strip typically used in heating cables, fuses, resistors and various types of controllers, electric car controller, the
instruments and meters, the integrated circuit, the sample electric current, the resistor. And low pressure resistance and so on.
Resistance Alloy- Constantan Sizes / Temper Capabilities
1; Condition: Bright, Annealed, Soft
2; Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm packing in coil
3; Rod, Bar diameter 1mm-30mm
4; Strip: Thickness 0.05mm-7mm, Width 1mm-280mm
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1981
Total Annual:
8000000-100000000
Employee Number:
90~100
Ecer Certification：
Verified Supplier
Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb... Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb...
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