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Code of Federal Regulations Title 49. Transportation § 49.179.100–10 Postweld heat treatment

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) After welding is complete, steel tanks and all attachments welded thereto must be postweld heat treated as a unit in compliance with the requirements of AAR Specifications for Tank Cars, appendix W (IBR, see § 171.7 of this subchapter).

(b) For aluminum tanks, postweld heat treatment is prohibited.

(c) Tank and welded attachments, fabricated from ASTM A 240/A 240M (IBR, see § 171.7 of this subchapter), Type 304L or Type 316L materials do not require postweld heat treatment, but these materials do require a corrosion resistance test as specified in § 179.100–7(c)(2).

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Cite this article: FindLaw.com - Code of Federal Regulations Title 49. Transportation § 49.179.100–10 Postweld heat treatment - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-49-transportation/cfr-sect-49-179-100-10/

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