U Shape Steel Tube

Brief Description: U-Shape Steel Tube, Outside Diameter: 5/8 to 1-1/2 Inches, Wall Thickness: 1.65mm to 2.77mm, Min Radius: 29mm; Max Radius: 675.84mm, Type of End-Finish: PE, Material: Carbon & Alloy Steel or Stainless Steel Product Details: Size Range: OD 5/8 to 1-1/2 Inches, WT 1.65mm~2.77mm, Min Radius: 29mm; Max Radius:675.84mm Type of End-Finish: PE Technical Conditions: Heat Treatment: Stress Relief Annealing of U-Tubes after Bending Surface Condition: Finished U-tubes shall be free of scale, without scratches after bending Dimensional Tolerances: U-tubes acc. to TEMA R.C.B.

Length of straight part -0/+5 mm Flattening (also called Ovality) at the bend shall not exceed 10% of the nominal tube outside diameter.

Wall thickness in bending part acc. to TEMA RCB 2.31 Minimum tube wall thickness in the bend part (Tmin): T(min) >= (SW x (2xR + D))/( 2x (R+D) where: SW is smallest wall thickness, D for Nominal outside diameter, R for radius Radius tolerance 1) For R < 100 mm +/- 3 mm 2) For R >= 100 mm +/- 5 mm Straightness tolerance max.

1.5 mm per 1 m U-Tube ends: Plain, vertically cut to the tube axis Repairs by welding: Prohibited Mandatory tests for U-tubes 100% Dimensional and visual control. 100% Ball passed test 100% Hydrostatic test min 10Mpa/ min 10sec. Coating: Passivation and Oiled, Black Paint or Varnish Packing: Plastic Plugs in both ends, Bundles of max.

3,000kg with several Steel Strips, Two Tags on each bundle, Wrapped in Waterproof Paper, Packed in Wooden case.

Mill Test Certificate: EN 10204/3.1B Addition: Clean Steel Grade covered with NACE MR-0175 USAGE: Heat-Exchanger; Steam Boiler; Hot-Water Boiler; Medium Temperature Boiler service; Oil and Gas Transportation, Low-Temperature Service; Ship-Building etc.