Overview
ISO 9444-2:2009 - Continuously hot-rolled stainless steel - Tolerances on dimensions and form - Part 2: Wide strip and sheet/plate specifies dimensional and form tolerances for continuously hot‑rolled stainless steel wide strip (actual widths from 600 mm to 2 500 mm) and sheet/plate cut from such strip. The standard defines required information for orders, delivery conditions, specific tolerance tables, measurement methods and permissible coil form.
Keywords: ISO 9444-2:2009, continuously hot-rolled stainless steel, wide strip tolerances, sheet/plate tolerances, thickness tolerance, flatness, edge camber, squareness.
Key topics and technical requirements
- Scope and delivery: Applies to hot‑rolled wide strip and sheet/plate cut from it; delivery condition normally as‑rolled (U) unless annealed/descaled agreed. Purchaser must specify thickness, width, edge condition (mill or trimmed), ends, length and any special conditions.
- Tolerances on thickness: Tabulated tolerances depend on specified thickness and nominal width (different bands for widths ≤1 400 mm and >1 400 mm up to 2 500 mm). Tolerances include crown; tighter coil thickness uniformity values are provided when material is intended for cold rolling.
- Tolerances on width and length: Width tolerances differ for mill (as‑rolled) and trimmed (slit) edges. Length tolerances are given by specified length bands (for example, typical tolerance +10 / 0 mm for lengths