Methods for the Identification of Aircraft Tubing of Plain Carbon Steel and Chromium-Molybdenum Steel
Description:
The survey of the possibilities for distinguishing between plain carbon and chromium-molybdenum steel tubing included the Herbert pendulum hardness, magnetic, sparks, and chemical tests. The Herbert pendulum test has the disadvantages of all hardness tests in being limited to factory use and being applicable only to scale-free, normalized material. The small difference in the range of hardness values between plain carbon and chromium-molybdenum steels is likewise a disadvantage.
Date:
October 1930
Creator:
Mutchler, W. H. & Buzzard, R. W.
Item Type:
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Partner:
UNT Libraries Government Documents Department