DIN EN 10210-2 Hot Finished Round Structural Steel Pipe, Structural Steel Square Tubing.
Material: 10#-45#, Q195-Q345, S235JRH, S355J2H, etc.
Standard: DIN EN 10210-2.
OD: 50-2500mm.
WT: 5-120mm.
Length: Customer's Requirement.
Application: For Machinery Use, Structural Purposes.
Production Method: Seamless Cold Drawing Or Cold Rolling, Electric Resistance Welded.
Test and Inspection: Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness Test, Hydrostatic or Nondestructive Electric Test, etc.
QUALITY CONTROL:
Incoming Raw Material Inspection.
Raw Material Segregation to avoid steel grade mix-up.
Heating and Hammering End for Cold Drawing.
Cold Drawing and Cold Rolling, on line inspection.
Heat Treatment, +A, +SRA, +LC, +N, Q+T.
Straightening-Cutting to specified length-Finished Measuring Inspection.
Mechanical testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Microstruture, etc.
Packing and Stocking.
Structural hollow section manufacturing process:
Structural hollow sections are manufactured by seamless or by welding.
Welded sections manufactured by continuous process.
Electric welded hollow sections are supplied without trimming the internal weld bead.
Surface condition:
The hollow sections have a smooth surface corresponding to the manufacturing method used; bumps, cavities or shallow longitudinal grooves resulting from the manufacturing process are permissible, provided the thickness is within tolerance.
| limit of the inner and outer weld reinforcement at submerged arc welded hollow sections |
| Wall thickness (mm) |
Weld reinforcement (mm) |
| ≤14.2 |
3.5 |
| >14.2 |
4.8 |