Excellent quality Tophet D - Moleculoy Wire/Evanohm/800 Moleculoy – TANKII
Excellent quality Tophet D - Moleculoy Wire/Evanohm/800 Moleculoy – TANKII Detail:
1. Karma alloy
Karma alloy is made up of copper, nickel, Aluminum and Iron as the main components. The resistivity is 2~3 times higher than MENTONG. It has lower temperature coefficient of resistance(TCR), lower thermal EMF versus copper, good permanence of resistance for a long period of time and strong anti oxidation. Its working temperature
range is wider than MENTONG (-60~300ºC). It is suitable for making fine precision resistance elements and strain.
2. Karma size
Wire: 0.018mm-10mm
Ribbon: 0.05*0.2mm-2.0*6.0mm
Strip: 0.5*5.0mm-5.0*250mm
Bar: 10-100mm
3.Karma Property
| name | code | Main Composition (%) | Standard
|
|||
| Cr | Al | Fe | Ni | |||
| Karma | 6J22 |
19~21 |
2.5~3.2 |
2.0~3.0 |
bal. |
JB/T 5328 |
| Name | Code | (20ºC) Resistivity (μΩ.m) |
(20ºC) Temp. Coeff.Of Resistance (αX10-6/ºC) |
(0~100ºC) ThermalEMF vs. Copper |
Max.working Temp.(ºC) |
(%) Elongation |
(N/mm2) Tensile Strength |
Standard |
| Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
4. Distinctive features of Karma resistance wire
1) Starting with Nickel Chromium electric heat wire Class 1, we replaced some of the Ni with
Al and other elements, and thus achieved a precision resistance material with improved
resistance temperature coefficient and heat electromotive force against copper.
With the addition of Al, we have succeeded in making volume resistivity 1.2 times greater
than Nickel Chromium electric heat wire Class 1 and the tensile strength 1.3 times greater.
2) The secondary temperature coefficient β of Karmalloy wire KMW is very small, - 0.03 × 10-6/ K2,and the resistance temperature curve turns out to be almost a straight line within a wide
temperature range.
Therefore, the temperature coefficient is set to be the average temperature coefficient between
23 ~ 53 °C, but 1 × 10-6/K, the average temperature coefficient between 0 ~ 100 °C, also may
be adopted for the temperature coefficient.
3) Electromotive force against copper between 1 ~ 100 °C is also small, below + 2 μV/K, and
exhibits excellent stability over a period of many years.
4) If this is to be used as a precision resistance material, low temperature heat treatment is
required to eliminate processing distortions just as in the case of Manganin wire CMW.
Product detail pictures:
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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for Excellent quality Tophet D - Moleculoy Wire/Evanohm/800 Moleculoy – TANKII , The product will supply to all over the world, such as: Malta, Qatar, Sri Lanka, Furthermore, all of our items are manufactured with advanced equipment and strict QC procedures in order to ensure high quality. If you are interested in any of our goods, please don't hesitate to contact us. We will do our best to meet your needs.
By Martin Tesch from Swiss - 2018.07.26 16:51
The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
By Karl from Washington - 2017.09.26 12:12
