U.S. Highway transportation of liquid chemicals has depended upon austenitic stainless steels (316 & 304) since the 1940's. This paper will compare these austenitics to the duplex stainless steels (UNS S31803 and S32205 both commonly known as 2205 and UNS S32304 commonly known as 2304) from various aspects such as: composition, mechanical and physical properties; corrosion resistance; design, manufacturing and welding of vessel; heating panel application on the bottom of the vessel; surface finish; DOT Regulations; and cost. Some actual experience with 2205 will be explained.

Subject
Surface finishing, Costs, Materials, Manufacturing, Industries, Regulations, Welding, Liquids, Metals, Duplex stainless steel, Stainless steel, Pitting resistance equivalent number, Yield strength
Keywords:
austenitic, duplex, pitting, SCC (stress corrosion cracking), chlorides, corrosion, DOT (Department of Transportation), CFR (Code of Federal Regulations)
© 1998 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).
1998
Association for Materials Protection and Performance (AMPP)
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