This standard specifies the welding consumables, welding procedure qualification, welding, weld seam inspection, post-weld heat treatment and mechanical performance test of welded test plates for pressure components of marine auxiliary boilers and pressure vessels (hereinafter referred to as boilers and pressure vessels). This standard applies to boilers whose design pressure is not greater than 2.5 MPa and whose medium is water and saturated steam; pressure vessels whose design pressure is not greater than 6.4 MPa and whose medium is water or air.
GB/T 11038-2009 Referenced Document
GB/T 226-1991 Etch test for macrostructure and defect of steels
GB/T 228-2002 Metallic materials--Tensile testing at ambient temperature
GB/T 229-2007 Metallic materials- Charpy pendulum impact test method