MESCO maintains a standing inventory of 3,000+ metric tons of aluminized silicon steel, covering AS40 to AS300 coating weights across DC01, DC03, HSLA, and 409L substrates in thicknesses from 0.3mm to 4.0mm. With in-house slitting, cut-to-length, and pipe/tube forming lines operating at full capacity, we deliver processed coil, sheet, and welded tube within 3–7 business days from stock — no mill lead times, no minimum production runs. Every batch ships with EN 10204 3.1 mill test reports as standard.