Low alloy steels show increasing resistance to HSC with increasing yield strength at hardness values below 250 HV10. At these hardness levels, HSC can occur if H2S partial pressure is in excess of 0.5 kPa (0.005 bar) and the mechanical stress is sufficiently high. In specimens containing welds, the fracture location coincides with the location of maximum hardness only if the hardness is above 350 HV10.

Subject
Test methods, Materials, Yield stress, Hydrogen concentration, Aqueous solutions, Acidity, Permeation, Sodium chloride solution, Maximum hardness, Steel, Hardness, Yield strength, Low alloy steel
Keywords:
Low alloy steels, HSC, H2S pressure, maximum hardness in welds
© 1994 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1994
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.