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BA (Bright annealed), is a specific surface finish that is produced by the mills for cold-rolled stainless steels, mainly for the grades AISI 304 and AISI 316 and in thicknesses up to a maximum of 3.0 mm.
During its production, the stainless steel is annealed in an inert gas atmosphere after cold rolling. This produces a reflective, shiny, smooth surface structure which, depending on the manufacturer and batch, can be close to mirror-polished stainless steel of lower quality grades.
However, stainless steel mills do not give any guarantees, standards, or tolerances on the finish of the BA and the quality of the surface or its gloss and reflection can vary greatly from production batch to production batch.
One field where stainless steel BA surfaces are often used is where an attractive appearance is highly crucial, i. e. all decorative applications for architecture, shopfitting, yacht, and shipbuilding, machinery construction, sanitary industry, gastronomy, catering industry, swimming pool and spa building, and medical appliances.
Shandong Ruitong New Materials Co., Ltd. is a leading supplier of steel and other metal products in China. As an ISO9001:2015 certified company, our products comply with ASTM, AISI, BS, DIN, JIS and other standards.
