LITTLE P.ENG. FOR ENGINEERING CONSULTANCY SERVICES

The weld joint strength reduction factors added in the 2004 edition were based on those provided in ASME BPVC Section IH, Subsection NH. Weld metal, base metal and cross-weld creep rupture data had been used to develop weld joint strength reduction factors in Subsection NH for limited material combinations. The basic weld joint strength reduction factors provided in ASME B31.3 were developed based on evaluating the factors provided in Subsection NH. Factors for 100,000 hour d

The ASME B31.3 Code has certain organizational features that, when understood, make it easier to follow. The Code consists of nine chapters. The first six chapters are what is called the base Code. It provides the basic piping Code requirements for Normal and Category D fluid service metallic piping. Chapter VII contains rules for nonmetallic piping and additional requirements for metallic piping lined with nonmetals. Chapter VIII contains rules for piping in Category M Fluid

This section of ASME B31, Pressure Piping Code, contains requirements for the materials, design, fabrication, assembly, erection, testing, a