This document specifies the ordering content, classification, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificates for iron-nickel-based and nickel-based alloy seamless round tube blanks. This document applies to forged round tube blanks for iron-nickel-based and nickel-based alloy seamless tubes and hot-rolled round tube blanks with a diameter not greater than 250mm.
T/SSEA 0151-2021 history
2021T/SSEA 0151-2021 Iron nickel base and nickel base alloy seamless tube round tube billet