Title: Some dynamic characteristics of steel for gas pipelines

Authors: Kiril Minchev

Addresses: Institute of Metal Science and Technology, 53 Chapaev St, Sofia 1574, Bulgaria

Abstract: In the production of gas pipelines steels of a very high specification are required. Efforts are directed towards combining high strengths and high plastic properties. The well-known properties of materials under dynamic load are of help in the overall estimation of the behaviour of a particular steel. This article presents soyle experimental data concerning the behaviour of low alloy 10G2SAF steel at a load rate K = 2.5 × l0⁵ MPa m^1/2 s⁻¹. Temperature relationships of impact toughness, dynamic yield stress and fracture toughness are considered and the critical temperatures are determined in accordance with some technological requirements.

Keywords: low alloy steel; dynamic fracture; impact toughness; critical temperature; gas pipelines; dynamic yield stress.

DOI: 10.1504/IJMPT.1991.036628

International Journal of Materials and Product Technology, 1991 Vol.6 No.2, pp.99 - 108

Published online: 05 Nov 2010 *

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