GMNA GMN10037 PDF

1 Scope This specification covers types of porthole extruded, precision drawn aluminum tubing suitable for automotive use. There are requirements for the base metal, the coating material, and the coated tubing. These requirements are applicable to the product coming out of the tube mills and the coating application lines, which are sometimes separate facilities. This tubing is used in the production of customized parts and assemblies. It is recommended that those parts and assemblies be validated for corrosion performance, conductivity and continuity, strength, appearance, and other critical properties unique to the particular application.