Structural Steel Shapes are usually ordered as specification ASTM-A36.

This Standard of the American Society for Testing and Materials is issued under the designation A-36.

All size available as hot dipped galvanized

Conforms to A-992, A-36 and A-572-GR50.
Standard lengths 40', 50', 60'
Unit of Measure

Specifications

Material

Steel

Shapeform

Flange Beams

Nominal Size

21 x 8 1/4 inches

Working Decimal Equivalent

21.000 x 8.250 inches533.4 x 209.55 mm

Weight lbs/ft

62 lbs/ft92.266168 kg/m

Depth of Section - A

20.99 inches533.146 mm

Flange Width - B

8.240 inches209.296 mm

Average Flange Thickness - C

0.615 inches15.621 mm

Web Thickness - D

0.400 inches10.16 mm

Weight per 40 ft. Length

2480 lbs1123.44 kg

Weight per 50 ft. Length

3100 lbs1404.3 kg

Weight per 60 ft. Length

3720 lbs1685.16 kg

Standard Length

40 ft50 ft60 ft

Typical Mechanical Properties

Tensile Strength

56000 to 80000 psi

Min. Yield Strength

50000 psi

Max. Carbon Content

0.26

ASTM Specification

ASTM A-36 ASTM A-572