Structure and Mechanical Properties of Maraging and Low-Carbon Martensitic Steels

Author： Shvetsov V.   Simonov Yu.   Kleiner L.  

Publisher： Springer Publishing Company

ISSN： 0026-0673

Source： Metal Science and Heat Treatment, Vol.47, Iss.1-2, 2005-01, pp. : 27-29

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Abstract

The structure, mechanical properties, and crack resistance after tempering of maraging steel 03Kh11N10M2T (EP-678) and low-carbon martensitic steel 12Kh2G2NMFT are studied. The range of tempering temperatures ensuring the combination of properties required for massive parts (σr #x2265; 1300 MPa, σ0.2 ≥ 1100 MPa, KCT ≥ 0.2 MJ/m2) is determined. It is shown that steel 12Kh2G2NMFT is better adaptable to manufacture because it is hardened by air-cooling.

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