Fracture Mechanics considerations are useful in establishing manufacturing, service and inspection criteria for OCTG products. This paper discusses the relationships between steel strength, flaw size, nominal stress and material toughness, which control fracture. Characteristic material toughness is contrasted against fracture mechanics design requirements. Fruitful design, manufacturing and use avenues for OCTG service improvement are discussed.

Subject
Sulfur, Tubular goods, Materials, Fracture toughness, Walls, Stress cracking, Flaws, Wall thickness, Steel, Toughness, Yield strength, Fracture mechanics, Inclusions
© 1986 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).
1986
Association for Materials Protection and Performance (AMPP)
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