Standard Heater Tubes are made to fully satisfy essential requirements of ASTM Standard Test Method D3241, the Jet Fuel Thermal Oxidation Stability Test. We assure all customers that our product is equivalent in all ways, and even superior in some ways, to competing products.
Our tubes provide a more consistent finish. This unique tube feature comes from our exclusive rolling process. A rolled tube removes coarse tool markings from the tube surface; markings that other suppliers can only try to hide by imputing even more millions of abrasive scratch marks onto the tube surface. Once the troubling tool markings and microscopic scratches provided by other suppliers are gone, the result is a pristine finish with greater surface regularity and an unmatched finish periodicity.
During fuel testing, deposits that form on the tube surface are forced down onto and into the pattern of grooves and inconsistent surface features present on a tube. The result can be a highly irregular deposit. Our improved finish provides a more consistent and regular deposit, resulting in more accurate measurement of critically important fuel-related deposit features such as the true nanometer deposit thickness and resulting volume and mass of deposits. This benefit is in addition to a finish that diminishes light scatter, resulting in an easier-to-read deposit coloration if the simpler pass/fail testing criteria are being employed.
All of this is the product of a rolled tube possessing a highly regular, more periodic surface and a more consistent finer finish.