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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

12 x 4 inches

Working Decimal Equivalent

12.000 x 4.000 inches304.8 x 101.6 mm

Weight lbs/ft

19 lbs/ft28.275116 kg/m

Depth of Section - A

12.16 inches308.864 mm

Flange Width - B

4.010 inches101.854 mm

Average Flange Thickness - C

0.349 inches8.8646 mm

Web Thickness - D

0.240 inches6.096 mm

Weight per 40 ft. Length

760 lbs344.28 kg

Weight per 50 ft. Length

950 lbs430.35 kg

Weight per 60 ft. Length

1140 lbs516.42 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