NACE TM0498-98

Standard Test Method for Measuring the Carburization of Alloys Used for Ethylene Cracking Furnace Tubes

National Association of Corrosion Engineers , 06/26/1998

Publisher: NACE

File Format: PDF

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Description

Standard By:National Association of Corrosion Engineers , 06/26/1998

Published:06/26/1998

Pages:10

File Size:1 file , 620 KB

Language:English

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This standard test method establishes two recommended methods for measuring the relative carburization resistance of alloys for tubes intended for service in ethylene cracking furnaces, or for assessing the performance of these tubes after service. Application procedures for the two methods are defined in detail. The combustion analysis method is preferred because it is quantitative. The chemical etching method is simpler and less expensive, but is only semi-quantitative. Other methods considered and the reasons they are not recommended are discussed in Appendix A.