API TR 21D PDF

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A Study of the Effect of Thread Forming on the Susceptibility of Precipitation Hardened Ni-Based Alloy Fasteners to Hydrogen Embrittlement, First Edition

American Petroleum Institute , 08/01/2024

File Format: PDF

Category: API

Description

Description

Standard By:American Petroleum Institute , 08/01/2024

Published:08/01/2024

Pages:42

File Size:1 file , 2.4 MB

Language:English

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API TR 21D PDF

This report quantifies the hardness profile of both machined and rolled threads in precipitation hardened nickel-based alloys (PHNAs); studies the effects of both machined and rolled threads on hydrogen induced stress cracking (HISC) susceptibility in relevant PHNAs; tests these PHNA grades used for bolting per the requirements of API standards; and provides guidance for the use of the selected testing methodology and resultant test data in the petroleum and natural gas industry.