A A Coatings See Galvanneal Coatings. Also the scale weight. The theoretical weight is used in estimating, however, it is not to be used for billing. A process of aging that increases hardness and strength and ordinarily decreases ductility.
Age hardening usually follows rapid cooling or cold working.
Takes effect on all cold rolled sheets in storage except fully aluminum killed. See also Non-aging. AISI See American Iron and Steel Institute. Alkyd A type of resin made from a polyhydroxy alcohol combined chemically with the acids of various oils. They are particularly adapted for use where hardness and high gloss are required.