EN 10217-2:2019 压力载荷用焊接钢管.交货技术条件.第2部分:具有较高温度下的规定性能的电焊非合金和合金钢管
Welded steel tubes for pressure purposes - Technical delivery conditions - Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties
This document specifies the technical delivery conditions for two test categories of electric welded tubes of circular cross section, with specified elevated temperature properties...