Welding & NDT Standards

Covers piping typically found in electric power generating stations, industrial and institutional plants.

Covers piping typically found in petroleum refineries, chemical plants, pharmaceutical plants, textile plants, and cryogenic plants.

Establishes rules for qualification of welders, welding operators, brazers, and brazing operators, and the procedures they use.

Contains requirements and methods for nondestructive examination referenced by other ASME code sections.

Covers welding requirements for any type of welded structure made from commonly used carbon and low-alloy constructional steels.

Covers welding requirements for aluminum alloy structures excluding pressure vessels and fluid-carrying pipelines.

Covers welding requirements for stainless steel structures including austenitic, ferritic, martensitic, and duplex.

Uses electromagnetic induction to detect surface and near-surface discontinuities in conductive materials.

Defines how to qualify a welding procedure specification for arc and gas welding of steels and arc welding of nickel and nickel alloys.

Defines quality requirements for fusion welding. Three levels: comprehensive (Part 2), standard (Part 3), and elementary (Part 4).

Defines requirements for qualification testing of welders for fusion welding of steels.

Detects surface and near-surface discontinuities in ferromagnetic materials by applying a magnetic field and ferromagnetic particles.

Detects surface-breaking discontinuities by applying a liquid penetrant that seeps into surface openings. Works on any non-porous material.

Uses X-rays or gamma rays to produce an image of the internal structure of a weld or component. Provides a permanent record.

Uses high-frequency sound waves to detect internal and surface discontinuities. Can measure material thickness and detect subsurface flaws.

The most basic and widely used NDT method. Direct or remote visual examination of welds and materials for surface discontinuities.