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Features and Application Notes
NISIL is used as negative leg of the thermocouple type N.
In the version for extension leads NISIL is used for type NN X.
The standardized temperature range of the different application possibilities of NISIL is available in the tables on pages 10 and 11 as well as 14 and 15 in our brochure.
Form of Delivery
NISIL (NN und NN X) is supplied in the form of bare wire with dimensions from 0.10 to 6 mm Ø. We supply coated wires from 0.10 to 1.5 mm Ø. Nisil can also be supplied in the form of stranded wire, ribbon, flat wire and rods. Please contact us for the range of dimensions.
Notes on Treatment
NISIL can be brazed without difficulty. All known welding methods are applicable.
However, the alloy is difficult to soft-solder. See also “Special Remarks on the Alloy”.
Special Remarks on the Alloy
NISIL has been developed as a counterleg to Nicrosil. By increasing the silicon and reducing the aluminium concentration versus the negative leg of thermocouple type K (KN), a higher oxidation stability has been achieved. Consequently, compared to KN the corrosive reaction to sulphur will be lower at higher working temperatures.