1.范围1。1本标准规定了圆形、方形、矩形和六角形金属制品（通常称为棒、线和棒）的首选尺寸。它不包括通常称为板材、薄板、带材、箔材和丝带的扁平金属产品，这些产品的宽度远远大于厚度。它还确定了具有特殊用途的杆和线的首选尺寸；即钢丝、热轧钢条和电线。

1. Scope1.1This Standard establishes preferred sizes for round, square, rectangular and hexagonal metal products conventionally known as rod, wire, and bar. It does not cover flat metal products conventionally known as plate, sheet, strip, foil, and ribbon, where the width is substantially greater than the thickness. It also establishes preferred sizes for rod and wire having special uses; namely, steel wire, hot-rolled steel wire rod and electrical wire.