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This paper will be restricted, so far as possible, to the application of metals to the metallurgical processes referred to in the title. The subject will be dealt with generally without regard to individual designs or source of heat, except, of course, where these may affect the general conclusions reached. We will confine our discussions to the practical applications in the commercial practice, giving the shortcomings found and our recommendations for improvement. While the author is affiliated with a manufacturing concern using a considerable amount of heat-resisting materials, he is anxious to avoid building the paper around an individual product or individual experiences. He has, therefore, collected reports from a number of alloy manufacturers, furnace builders and consulting engineers totaling twenty-two in all. Most of these responded, giving essential information. Others appeared to have nothing to contribute; and still others were reluctant to reply as they apparently felt that such a discussion would reveal design and manufacturing data of private nature and which they did not feel justified in broadcasting. While none of us desires to divulge trade secrets or to publish data held to be confidential, it is feared that this attitude has retarded, and is greatly retarding progress in the manufacture and application of heat-resisting alloys. Until we can all bring our common problems out in the open and frankly discuss them, there will not be much advancement of the art generally. This symposium should therefore assist in starting such frank discussion.
Woodson, J. C.
Manager, Industrial Heating Engineering Department, Westinghouse Electric and Manufacturing Co., Mansfield, Ohio.