Changzhou Hongtai Precision Steel Pipes Co. specializes in steel pipes manufacturing and trading for many years, enjoys a great reputation in China. Our products are famous for their high quality and wide size range.Product NameS235JRH steel pipeS275 J0H steel pipeS275J2H steel pipeS355JOH steel piprS355J2H steel pipechemical analysisOD 40mm,C: 0.17;40 OD 65mm,C 0.20; Mn: 1.40;P: 0.045; S: 0.045;N: 0.009OD 40mm,C: 0.20;40 OD 65mm,C 0.22; Mn: 1.50;P: 0.040; S: 0.040;N: 0.009OD 40mm,C: 0.20;40 OD 65mm,C 0.22; Mn: 1.50;P: 0.035; S: 0.035OD 40mm,C: 0.22;40 OD 65mm,C 0.22; Si: 0.55;Mn: 1.60;P: 0.040; S: 0.040;N: 0.009OD 40mm,C: 0.22;40 OD 65mm,C 0.22; Si: 0.55;Mn: 1.60;P: 0.035; S: 0.035Tensile StrengthOD 3mm,360-510mm;3 OD 65mm, 340-470mmOD 3mm,430-580mm;3 OD 65mm, 410-560mmOD 3mm,430-580mm;3 OD 65mm, 410-560mmOD 3mm,510-680mm;3 OD 65mm, 490-630mm-Yield strengthOD 16mm,  235MPa; 16 OD 40mm, 225MPa;40 OD 65mm, 215MPaOD 16mm,  275MPa; 16 OD 40mm, 265MPa;40 OD 65mm, 255MPaOD 16mm,  275MPa; 16 OD 40mm, 265MPa;40 OD 65mm, 255MPaOD 16mm,  355MPa; 16 OD 40mm, 345MPa;40 OD 65mm, 335MPa-StandardEN10210LengthAs customer s requestPackagingStandard export packing, packed in woven bags, with two nylon slings, or can be customized as requestHeat Treatment/      Delivery ConditionCold finished (hard)   BK(+C)Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformationCold finished (soft)    BKW(+LC)The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding)Cold finished and stress-relieved annealing BKS(+SR)Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.Annealed    GBK(+A)The last Cold forming process is followed by annealing in a controlled atmosphere.Normalized   NBK(+N)The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.Delivery TimeWithin 35-50 days from receiving depositPayment Term100% L/C at sight or 30% deposit, 70% balance against copy of B/LUsage/ApplicationPipes for automobile and motorcycleMain MarketAsia, Middle East, Europe, etc.