Steel Square Bar 1.Easy to Weld, 2.Easy to Cut, 3.Easy to Form, 4.Easy to Machine Steel Square BarHot Rolled Steel Square, is widely used for all general fabrication and repairs in industrial maintenance, agricultural implements, transportation equipment, ornamental work, etc. HR Steel Squares have a slightly grainy finish with radius corners.Specifications: ASTM A36 ,stainless steel ,etc Dimensions:Hot rolled: S10-S40mmCold drawn: S5-S60mmStraightness variation: Hot-rolled≤4.0mm/m Cold-rolled≤1.0mm/m Name: HR square, square barApplications: frame work, braces, supports,  shafts, axels, etc.Workability: Easy to Weld, Cut, Form, and Machine Mechanical Properties: Brinell = 112, Tensile = 58-80,000 +/-,  Yield = 36,000 +/-Available Stock Sizes: 2ft, 4ft, 6ft, 8ft, 10ft, 20ft or Cut to Size