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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

83 lbs/ft123.517612 kg/m

Depth of Section - A

21.43 inches544.322 mm

Flange Width - B

8.355 inches212.217 mm

Average Flange Thickness - C

0.835 inches21.209 mm

Web Thickness - D

0.515 inches13.081 mm

Weight per 40 ft. Length

3320 lbs1503.96 kg

Weight per 50 ft. Length

4150 lbs1879.95 kg

Weight per 60 ft. Length

4980 lbs2255.94 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