HR narrow width coil (one side trimmed, OST) is a hot rolled side-slit coil with one trimmed edge and one as-slit edge, offered in stock condition as a cost-effective narrow strip option where full double-edge trimming is not required.

Key Specifications

• hot rolled pickled or unpickled narrow width coil with one side trimmed (OST) edge and the opposite edge left mill/slit as produced.
• Thickness range typically 1.60–4.60 mm, providing versatile gauge coverage for bending, forming and fabrication.
• Width range around 51–599 mm, giving economical narrow strip for applications that can tolerate one non-trimmed edge.
• Standard coil IDs of about 610, 710 or 730 mm, suitable for common decoilers, slitters and rewinding lines.
• Coil weight may vary from roughly 100–5000 kg, supplied with bare box strapping through the eye and/or circumference.
• Material can show surface, shape and width variation but remains fully workable for cutting, slitting and downstream processing.

Usage Applications

• Manufacture of profiles, flats and channels where only one reference edge is critical for guiding or alignment.
• Feedstock for tube and pipe mills, guards, strips and bands where edge condition on the non-critical side is less stringent.
• General fabrication work including clamps, supports, brackets and reinforcement strips in construction and engineering.
• Conversion into cut-to-length strips, small blanks and components in workshops focused on cost-effective raw material sourcing.
• Re-rolling or melting charge where OST coils provide high-quality narrow-width scrap with reliable metallurgical properties.