BS3059 steel pipe is British standard for steel boiler and superheater tubes.Product Name243 steel pipe360 steel pipe440 steel pipeType0.3Mo steelCarbon steelCarbon steelchemical analysisC:0.12-0.2;Si:0.1-0.35;Mn:0.4-0.8;P:  0.035; S: 0.035;Mo: 0.25-0.35C: 0.17; Si:0.1-0.35;Mn:0.4-0.8;P:  0.035; S: 0.035C:0.12-0.18; Si:0.1-0.35;Mn:0.9-1.2; P:  0.035; S: 0.035Tensile Strength480-630360-500440-580Yield strength275235245StandardBS3059LengthAs customer s requestPackagingStandard export packing, packed in woven bags, with two nylon slings, or can be customized as requestHeat Treatment/      Delivery ConditionCold 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 boiler and superheaterMain MarketAsia, Middle East, Europe, etc.