## THEORETICAL WEIGHT OF STEEL

Weight (Kg) = Thickness (mm) x Width (mm) x Length (mm) x Density Value.

For steel grades 201, 202, 301, 302, 304, 304L, 305, and 321, the density value is 7.93.

For steel grades 405, 410, and 420, the density value is 7.75.

For steel grades 309S, 310, 316S, 316L, and 347, the density value is 7.98.

Stainless steel round bars, steel wire, theoretical calculation formula:

Diameter x Diameter x 0.00609 = Kg/m (Applicable to 410, 420, 420j2, 430, 431)

For example: 50 x 50 x 0.00609 = 15.23 Kg/m

Diameter x Diameter x 0.00623 = Kg/m (Applicable to 301, 303, 304, 316, 316L, 321)

For example: 50 x 50 x 0.00623 = 15.575 Kg/m

Stainless steel profiles, theoretical calculation formula:

Hexagonal bar: Across-the-flats x Across-the-flats x 0.00686 = Kg/m

Square bar: Side width x Side width x 0.00793 = Kg/m

Stainless steel tubes, theoretical calculation formula:

(Outer diameter – Wall thickness) x Wall thickness x 0.02491 = Kg/m

For example: 57 x 3.5 (57-35) x 3.5 x 0.02491 = 4.66 Kg/m

Stainless steel tube weight calculation formula:

For pipes: (Outer diameter – Wall thickness) x Wall thickness x 0.02491 = Weight per meter.

For round bars: Outer diameter x Outer diameter x 0.00623 = Weight per meter.

The calculation formula for square tubes is:

0.0246615 x (Side length x 4 ÷ 3.14 – thickness) x thickness.

The calculation formula for rectangular tubes is:

0.0246615 x {(Length + Width) x2÷ 3.14 – thickness) x thickness.