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KANGTONG (Constantan alloy wire)
With copper and nickel as the main component. Has a low resistance temperature (below 500 degrees Celsius), good mechanical processing performance, corrosion resistance and brazing. Variable resistance and strain resistance elements in an alternating current instrument.
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Thermocouple Wire
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With copper and nickel as the main component. Has a low resistance temperature (below 500 degrees Celsius), good mechanical processing performance, corrosion resistance and brazing. Variable resistance and strain resistance elements in an alternating current instrument.
Chemical composition(Standard: GB/T6145-2010)
| Name | Code | Main Composition% | Standard | |||
| Cu | Mn | Ni | Cr | |||
| Constantan | 6J40 | Bal. | 1~2 | 39~41 | - | GB/T6145-2010 |
Properties
| Name | Code | Resistivity（μΩ.m） |
Temp.Coeffi. Of Resistance(℃) |
(0~100℃) Thermal EMF vs. Copper |
Max.working Temp.(℃) |
Elongation(%) | Tensile Strength (N/mm2) |
Standard |
| Constantan | 6J40 | 0.48±0.03 | ≤±40 | 45 | ≤500 | ≥15 | ≥390 | GB/T6145-2010 |
Diameter and Tolerance
| Diameter(mm) | 0.02~0.028 | 0.032~0.10 | 0.112~0.28 | 0.135~0.50 | 0.56~1.0 | 1.06~1.60 | 1.70~2.12 | 2.24~3.00 | 3.15~4.50 | Standard |
| Tolerance(mm) | ±0.002 | ±0.003 | ±0.005 | ±0.010 | ±0.015 | ±0.020 | ±0.025 | ±0.030 | ±0.035 | GB/T6145-2010 |
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