In part – 1 of this article, we had discussed about the general requirements as mentioned in part QG of ASME BPVC Section IX. To read part – 1 of this article please click here. This article will cover the Part QW of ASME section IX, which is dedicated to the general requirements in the welding. Part QW is further divided into five articles, these are; Article 1. General requirements for….
ASME Boiler and Pressure Vessel Code (BPVC), Section IX contains qualification standard for the following; Welding, Brazing and Fusing procedures Welders and welding operators Brazers and brazing operators Plastic fusing operators Section IX is a reference document for the qualification of material joining (welding, brazing and plastic fusing) processes, used by various construction codes such as Section I, III, IV, VIII, XII, etc. NOTE: The different material joining processes covered….
Magnetic Particle Testing (MT) (also known as magnetic particle inspection – MPI) is a non destructive test (NDT) method, used to detect surface or subsurface (near to surface) discontinuities. This NDT method can be used on metals which can be easily magnetized (ferromagnetic). Metals can be classified as ferromagnetic, paramagnetic, or diamagnetic. Ferromagnetic metals: Ferromagnetic metals are those, which are strongly attracted to a magnet and can be easily magnetized…..
Oxy-fuel welding (OFW) is also known as Gas welding or Oxy-fuel gas welding. The term ‘Oxy-fuel’ is used to denote a combination of Oxygen and a Fuel gas, means it’s a process in which Oxygen and a fuel (combustible gas) both are required. Most commonly used fuel gas is Acetylene and thus the name Oxy-Acetylene welding (OAW) is also used for this process, when Acetylene is used as a fuel….
Thickness range for performance qualification (welder qualification test): ASME BPVC section IX has provided guidelines for the thickness range up to which a welder can weld. This can be found in Table – QW 452.1(b) of ASME BPVC Section IX (2017 edition). A simplified version of that table is given below; According to this table three important points can be drawn: The maximum thickness which a welder can weld is….
ASME Boiler and pressure vessel code (BPVC) has assigned certain numbers to base metals as well as to filler metals (electrodes). For base metals, ASME has assigned two number system, these are; P Numbers Group Numbers For filler metals, the number system which are assigned, are as follows; F Number A Number These numbers can be found in ASME BPVC Section IX (2017 edition), please see Table–1 for details; Table….