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Carbon Steel Pipes
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    Hollow Section

    Main products:seamless steel pipe, round steel, welded pipes, spiral pipes, galvanized pipe, alloy pipes, stainless steel, threaded steel, angle grooves, aluminum plates, U-shaped steel and other dozens of products, hundreds of steel grade materials.

    Product Details(Feature/Advantages)

  • Delong Metal is group company in the steel manufacture & Trading, founded in the 2000s, 800+ staff, 25, 000+ m2 non-dust workshop, 40+ great large mills and cooperation partners in China, 4000, 000+ MT production per year under ISO management, 40, 000+customers in domestic and overseas market, 10 billion USD of annual turnover, 15+ subsidiary companies all over China, ranking the Top 100 private enterprises in China, 1 hour reach Shanghai/Tianjin /Guangzhou Port, we keep high quality, competitive price, thousands tons of stock, most efficient delivery and reliable cooperation for global valued customers.

  • In recent years, our company has always occupied the market with high-quality products. The products are exported to Southeast Asia, Central Asia, North Africa, South America and other regions. We always give the buyer high-quality products, low prices, good service, one-time cooperation for lifelong friends. Welcome domestic and international friends to inquire for a better future together!

  • A hollow structural section (HSS) is a type of metal profile with a hollow cross section. The term is used predominantly in the United States, or other countries which follow US construction or engineering terminology.
  • HSS members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available. HSS is only composed of structural steel per code.
  • HSS is sometimes mistakenly referenced as hollow structural steel. Rectangular and square HSS are also commonly called tube steel or box section. Circular HSS are sometimes mistakenly called steel pipe, although true steel pipe is actually dimension and classed differently from HSS. (HSS dimensions are based on exterior dimensions of the profile; pipes are also manufactured to an exterior tolerance, albeit to a different standard.) The corners of HSS are heavily rounded, having a radius which is approximately twice the wall thickness. The wall thickness is uniform around the section.
  • In the UK, or other countries which follow British construction or engineering terminology, the term HSS is not used. Rather, the three basic shapes are referenced as CHS, SHS, and RHS, being circular, square, and rectangular hollow sections. Typically, these designations will also relate to metric sizes, thus the dimensions and tolerances differ slightly from HSS.

  • Keywords Hollow Section;Square Steel Tube;Rectangular Steel Tube; H Beam;I Beam;C Beam;Angle
    Size OD: Hollow Section/Square Steel Tube/Rectangular Steel Tube:10mm*10mm ~ 500mm*500mmWT: 0.5mm ~ 20mmLENGTH: 0.3mtr ~ 18mtr
    Standard & Grade ASTM A500, ASTM A53, EN 10210, EN 10219, JIS G 3466, BS 1387, BS 6323.
    Ends Square Cut, Burr Removed
    Delivery Within 30 days and Depends on your order quantity
    Payment TT, LC , OA , D/P
    Packing Waterproof Paper Wrapped, Steel Strips Bundled, Two Tags on Each Bundle
    Usage In Industrial Construction, Machinery/Rack/Container manufacturing

  • ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes

    EN 10210 Hot finished structural hollow sections of non-alloy and fine grain structural steels

    EN 10219 Cold formed welded structural hollow sections of non-alloy and fine grain steels

    ASTM A53 used as structural steel or for low-pressure plumbing

  • Grade and Chemical Composition & Mechanical Properties
    Grade Class (Chemical Composition) % Tensile Strength σb Yield Strength Elong ation δ
    C Mn Si S P T.S MPa Re MPa E.L %
    (Not More Than) (Not Less Than)
    Q195 0.06~0.12 0.25~0.50 0.30 0.050 0.045 315 195 22
    Q215 A 0.09~0.15 0.25~0.55 0.30 0.050 0.045 335 215 22
    B 0.045
    Q235 A 0.14~0.22 0.30~0.65 0.30 0.05 0.045 375 235 20
    B 0.12~0.20 0.30~0.70 0.045
    Grade Class (Chemical Composition) % Tensile Strength σb Yield Strength Elong ation δ
    C Mn Si S P T.S MPa Re MPa E.L %
    (Not More Than) (Not Less Than)
    ASTM A53 A 0.25 0.95 0.55 0.045 0.050 330 205
    B 0.30 1.20 0.55 0.045 0.050 415 240
    BS1387-1985 (Chemical Composition) % Tensile Strength σb Yield Strength Elong ation δ
    C Mn Si S P T.S MPa Re MPa E.L %
    (Not More Than) (Not Less Than)
    0.20 1.20 0.045 0.045 320~460 195 20

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