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

68.000 lbs/ft101.195152 kg/m

Depth of Section - A

21.13 inches536.702 mm

Flange Width - B

8.270 inches210.058 mm

Average Flange Thickness - C

0.685 inches17.399 mm

Web Thickness - D

0.430 inches10.922 mm

Weight per 40 ft. Length

2720 lbs1232.16 kg

Weight per 50 ft. Length

3400 lbs1540.2 kg

Weight per 60 ft. Length

4080 lbs1848.24 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