Mild Steel Angle 4" x 4" 4-ft 1/4" thickness 48" Inch Long,thickness 48" Inch Long Mild Steel Angle 4" x 4" 4-ft 1/4", Lengths may vary +/- 1/8" (Cutting saw blade thickness), 1/4" Thickness, Elongation = 23% in 2" ; Elasticity = 29 ksi, Hot Rolled Steel, 4" x 4" (Width x Height),4" Steel Angle - 1/4" Thickness - Mild Steel (48" Long), 1/4" thickness 48" Inch Long Mild Steel Angle 4" x 4" 4-ft.