Conforms to A615-40, A615-60 and A706-60.
The bar numbers are based on the number of 1/8 inches included in the nominal diameter of the bar.
Unit of Measure

Specifications

Material

Steel

Shapeform

Bar

Size

1/2 inches

Size

0.5 inches12.7 mm

Bar Size No.

4

Weight

0.668 lbs/ft0.994093552 kg/m

Nominal Diameter

1/2 inches12.70 mm

Nominal Area

0.20 in²129.032 mm²

Nominal Perimeter

1.571 inches39.9034 mm

ASTM Specification

ASTM A-615-40 ASTM A-615-60

Max. Stock Length

20 ft30 ft40 ft60 ft