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

18 x 7 1/2 inches

Working Decimal Equivalent

18.000 x 7.500 inches457.2 x 190.5 mm

Weight lbs/ft

55 lbs/ft81.84902 kg/m

Depth of Section - A

18.12 inches460.248 mm

Flange Width - B

7.532 inches191.3128 mm

Average Flange Thickness - C

0.630 inches16.002 mm

Web Thickness - D

0.390 inches9.906 mm

Weight per 40 ft. Length

2200 lbs996.6 kg

Weight per 50 ft. Length

2750 lbs1245.75 kg

Weight per 60 ft. Length

3300 lbs1494.9 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