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This article describes results of commercial trials performed as part of the development of new high-strength steels for pump-compressor tubing, casing, and the semifinished products for the associated couplings. Studies were made of the microstructure and mechanical properties of tubes made of steels 37G2S and 48G2BM — steels traditionally used at the Sinarskii Pipe Plant — and new steels of type...
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