API TR 21TR1
Materials Selection for Bolting
|Publication Date:||1 August 2019|
This document provides guidance for the selection of materials and manufacturing processes for low-alloy steel bolting manufactured in accordance with API Specification 20E and nickel-based and stainless alloys manufactured in accordance with API Specification 20F. Table 2 and Table 3 are provided as guidance for the material selection of fasteners.