mainly used in the mechanical structure, such as mechanical parts, hydraulic prop, hydraulic cylinder, mechanical processing materials or other heavy equipment parts. Tube for special environment such as low temperature steel tube and pipe such as piling pipe and tube in general structure
Outside diameter OD: 350 mm to 1200 mmThe thickness of the WT: 8 mm to 200 mm
Typical kinds of Typical steel grade: S355J2H S460N, E355N, P355N, ST52, ST37, GR. 6, 16 mn, Q345A - E,20、45、20Cr、40Cr、20CrMo、20MnV6、30-35CrMo、42CrMo、27SiMn 38CrMoAl.
OD: max 1200 mm ；WT: max 150 mm
tolerance for hot rolled pipes: OD(±0.8%) ；WT(-10%~+10%)
tolerance for machining pipes: OD(±1mm) ；WT(±1mm)
typical steel: S355J2H、S460N、Gr.6、Q345A-E、45#、S890、27SiMn、42CrMo4、40Cr etc.
