This specification covers cold-formed welded carbon steel hollow structural sections (HSS) for welded or bolted construction. wt. Rectangular Hollow Sections Size Mass (kg/m) Size Mass (kg/m) 50 x 25 x 1.6 1.75 150 x 50 x 5.0 14.20 50 x 25 x 2.0 2.15 150 x 75 x 9.0 27.60 50 x 25 x 2.5 2.62 150 x 100 x 4.0 14.80 50 x 25 x 3.0 3.07 150 x 100 x 5.0 18.20 65 x 35 x 2.0 2.93 150 x 100 x 6.0 21.40 per 20' bar, pounds cross sectional area sq. In bare bundle with steel band,or in bulk. Each of the square and rectangular hollow sections shall be marked with the following information. HSS with a maximum periphery of 64 inches are manufactured by the electric-resistance welding (ERW) process. bar size designa-tion diameter in inches est. The Rectangular Hollow Section is veritably his progeny and it has grown up to be a respectable member of the steel society under his tutelage. Rectangular Hollow Section (RHS) Continued Size Height / Width ( mm ) Thickness T ( mm ) Mass M ( Kg/m) 200 x 100 5.0 22.6 200 x 100 6.3 28.1 200 x 100 8.0 35.1 200 x 100 10.0 43.1 200 x 100 12.5 52.7 200 x 120 5.0 24.1 200 x 120 6.3 30.1 200 x 120 8.0 37.6 200 x 120 10.0 46.3 200 x 150 8.0 41.4 200 x 150 10.0 51.0 250 x 100 10.0 51.0 250 x 100 12.5 62.5 The strip is continuously seam-welded while round in shape and then gradually brought to the desired section in the sizing mill. Tel: 045 876312 / 045 876301 Fax: 045 879819 Email: info@rfl.ie ASTM 1085, table chart HSS Hollow Structural Section Square Structural Tube. Marking. top Packing. Orrcon Steel distributes and manufactures rectangular hollow sections in a wide range of sizes. Square & Rectangular Hollow Sections. Rectangular Structural Tube Per. - Square & Rectangular Hollow Sections - Product Range - Product Applications - Technical Specification - Large Diameter Spiral Welded Pipes . per ft. pounds wt. They are manufactured on the tube mills using a high frequency induction welding technique. This publication presents tables of dimensions and section properties for rectangular, square, and round Hollow Structural Sections (HSS). inches perimeter inches * bar size designation= the number of eighths of an inch in nom. century. HOLLOW SECTIONS IN STRUCTURAL APPLICAT IONS by J. Wardenier PREFACE Professor Jaap Wardenier has had an enormous impact on the design methods for tubular steel structures in the late 20th. dia. Home >> Square & Rectangular Hollow Sections. Rectangular Hollow Sections Rectangular Hollow Sections (RHS) are made to the Kenya Bureau of Standards specification KS02-104. AISC_Manual_Label Rectangular Hollow Structural Section Sizes & Properties Red or * = Not in AISC Page 1 of 6. Our Rectangular Hollow Sections are manufactured to the Australian Standard for structural steel hollow section .0AS/NZS 1163 and cover steel grades C250L0, C350L0 and C450L0. 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