Description

This Standard specifies requirements for hot-rolled steel plate, floorplate, sheet and strip rolled on a continuous mill, in thicknesses up to 8 mm for formability and extra formability grades, and up to 16 mm for other grades. It also specifies requirements for analysis, structural, weather-resistant and floorplate grades, and for widths up to 2000 mm. It includes slit material, provided that the parent metal has an as-rolled width of not less than 600 mm.

Scope

The Standard specifies the following grade requirements:

• (a) For analysis grades chemical composition only;
• (b) For formability grades, extra formability grades, and structural grades including weather-resistant grades both chemical composition and mechanical properties;
• (c) For floorplate both chemical composition and mechanical properties

The Standard permits the addition of boron and micro-alloying elements for the achievement of special properties.