Iron & Steel

Hot rolled steel is supplied as coil, sheet or plate against a stated grade, dimensional range, surface condition and mechanical-property requirement. Standards references must be tied to the actual mill certificate, heat and ordered delivery condition.

Cold rolled steel provides controlled thickness, surface and forming characteristics for precision applications. The buyer should specify grade, temper, surface finish, dimensional tolerances, oiling and the required mill test evidence.

Hot-dip galvanized steel combines a defined steel substrate with a specified metallic coating system, coating mass and surface treatment. Grade, coating designation, spangle, passivation, oiling and dimensional tolerances must be ordered together.

Steel pipes and tubes are selected by manufacturing route, grade, section, outside dimensions, wall thickness, end finish and test category. Structural, pressure and mechanical tubes require different standards and evidence.

Structural steel sections and profiles are procured by section geometry, grade, length, dimensional tolerances and delivery condition. Design suitability remains with the engineer and must be supported by heat-specific mill certification.

Long steel products include reinforcing bar and wire rod forms that require distinct grades, diameters, rib or surface geometry and mechanical testing. The RFQ should separate construction rebar from drawing-quality rod and other long products.