What is & other; 405/426' Alloy, they differ with other C compensation extension cord?
“ 405/426' Is many years ago by Hoskins Manufacturing Company in the name of the alloy distribution. The original 405/426 is nickel-based alloy material, its production is closely follow ( In & plusmn; 0. 110 millivolt range) The nominal emf curve (C type thermocouple 26% 5% rhenium tungsten and tungsten rhenium) 。 As a result, they considered compensation extension cord.
alloy design of 405/426 of the advantage is that they conform to the specified bounds of C type curve, up to 1600 & deg; F。 Competition is the copper base alloy. In addition to more easily oxidation at high temperatures, they are usually only follow the nominal curve until about 400 & deg; F。
it should be noted that there are copper alloy is called & other; 405/426' , just because they are used as a C extension cord. Shanghai automation instrument three factory don't sell the inferior copper base material.
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