ASTM A554 A312 A270 A249 Stainless Steel half round Pipe 1. Excellent quality, low ... Specifications: ASTM A554 A312 A270 A249 Stainless Steel half round Pipe NameStainless Steel pipeStandardASTM A554, A249, A269 ... 5mmSurface180G, 320G, 400G Satin / Hairline400G, 500G, 600G or 800G Mirror finishApplicationDecoration construction, upholstery, industry instrumentTestSquash test, extended test, water ...