Welding

A collective term for mining, iron industry and steel industry

NAICS industry sector 31-33 - establishments engaged in the mechanical, physical, or chemical transformation of materials, substances, or components into new products.

Dye penetrant inspection (PT) is one of the nondestructive testing (NDT) methods, allowing to determine minor defects that come to the surface, which cannot be detected just by visual inspection (VT). The method is based on capillary penetration of indicator liquids (penetrants) into the materials’ surface defects.

A welder is a specialist in welding. His responsibilities include connecting metal components into a single structure by using one or more types of welding.

Alloy made by combining iron and other elements