Abstract
The authors state that an analysis of the mechanical properties and wear resistance of the experimental steels makes it possible to recommend them for use in various branches of machine building. In petroleum machine building this steel may be recommended for the production of parts of the drive chains of drilling units in place of 30KhN3A, 12KhN3A, and 50KhFA steels. This is also a basis for expecting a definite effect from the use of such steels in the mining industry and in construction. The paper reports on studies of experimental steels based on the premise that an analysis of the designs and operating conditions of rapidly wearing parts of well-drilling equipment has shown that the primary reason for their unsatisfactory life span is the low mechanical properties of the steels used.
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