Tantalum materials have been used in the Chemical Processing Industry (CPI) for over 60 years and continue to be important materials of construction. This paper will discuss tantalum and Ta-2.5W alloy applications that have evolved over the past century to current day applications. Traditional upper limits for corrosion and hydrogen embrittlement resistance established for pure tantalum will be compared to new upper limits for the Ta-2.5W alloy in HCl, NaOH and H2SO4 acid media. Also illustrated, will be test data showing the pronounce affect of coupling platinum to tantalum materials, and their contributions on establishing new upper boundaries for tantalum materials for the CPI.

Subject
Acids, Weld attack, Materials, Tantalum, Corrosion resistant alloys, Corrosion rate, Teflon, Platinum, Equipment, Corrosion resistance, Weld metal, Test specimen, Hydrogen
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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