Conclusions
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1.
All tested silicon steels with a carbon content of 0.3–0.4% harden to a depth of 10 mm in water quenching without formation of quenching cracks.
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2.
The strongest effect on the strength and spring properties of railroad washers is exerted by the content of carbon and silicon in the composition.
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3.
Washers made of steels 30S1, 30S2, 35S1, and 35S2 with less than 0.38% C do not provide the requisite spring properties. These steels have a low resistance to tempering, and therefore an increase in the tempering temperature for increasing the ductility of the product causes a considerable decrease in their hardness.
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4.
Steel 40S2A is recommended for commercial production of railroad washers.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 20–22, January, 1999.
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Pudov, E.A., Kuvshinov, S.F., Golomazova, N.V. et al. Use of medium-carbon silicon steel for manufacturing railroad spring washers. Met Sci Heat Treat 41, 22–24 (1999). https://doi.org/10.1007/BF02466266
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DOI: https://doi.org/10.1007/BF02466266