Product specification — 6063 extrusion
6063 composition: 0.20–0.60% Si, 0.45–0.90% Mg, balance aluminum. Our extrusion offcuts come from fabricator drops, window/facade end-cuts and reject profiles. Two ISRI-style grades: Tata (clean bare 6063, free of paint/thermal break/screws) and Tutu (painted/anodised 6063, free of plastic thermal break and steel reinforcements).