Conclusions
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1.
Martensitic stainless steel Kh12NMFB (ÉP609) with good weldability is intended for machine parts and apparatus for prolonged operation at temperatures up to 600°.
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2.
Two heat treatments have been developed for steel Kh12NMFB-hardening from 1000–1050° and tempering at 650° (σb ≥ 90 kgf/mm2) hardening from 1000–1050° and tempering at 550° (σb ≥ 110 kgf/mm2) — for parts not welded.
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3.
The mechanical properties of welded joints made by argon-arc welding are approximately equal to those of the base metal.
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4.
The steel has good technological properties and can be used for deep drawing, has good weldability, and is not susceptible to cracking in welded apparatus of complex configuration.
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All-Union Institute of Aviation Materials. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 51–52, December, 1978.
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alekseenko, M.F., Fedotova, L.S. & Elkin, I.S. Heat-resistant martensitic steel Kh12NMFB. Met Sci Heat Treat 20, 1020–1021 (1978). https://doi.org/10.1007/BF00703282
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DOI: https://doi.org/10.1007/BF00703282