ASME SA106GrB steel pipe is a seamless carbon steel nominal pipe for high temperature use. The material has good mechanical properties. A106B steel pipe is equivalent to my country’s 20# steel seamless steel pipe, and implements ASTM A106/A106M high temperature service carbon steel seamless steel pipe standard, grade B. From the ASME B31.3 chemical plant and oil refinery pipeline standard, it can be seen that the use temperature range of A106 material is: -28.9~565℃.
SA-106Gr.B seamless steel pipe is a widely used low-carbon steel, which is widely used in the petroleum, chemical and boiler industries.
General purpose seamless steel pipe ASTM A53/ASME SA53 GR.B is suitable for pressure piping systems, pipeline pipes and general purpose pipes with temperatures below 350°C.
Seamless steel pipe for high temperature operation ASTM/ASME SA106 A106 GR.B, steel grade: SA106B
Line pipe API SPEC 5L GR.B, steel grade: B, X42, X46, X52
Comparison of chemical composition between GB/T8163 20# seamless steel pipe and A106Gr.B seamless steel pipe:
Steel grade CMnPSSiA106Gr.B＜0.30.29~1.06＜0.025＜0.025＞0.1GB/T8163 20#0.17~0.240.35~0.65＜0.035＜0.0350.17~0.37
According to ASTM The A106 standard requires that the mechanical properties of Grade B hot-rolled seamless steel pipes should meet the following requirements:
Mechanical properties: (tensile strength Rm ≥ 415MPa, yield strength ReL ≥ 240MPa, elongation ≥ 12%)
SA-106Gr.B seamless steel pipes have good welding performance. Due to the low C content, severe hardening of the structure will not usually occur due to welding. The plasticity and toughness of the welded joints are good. No special process measures are required during the entire welding process to obtain satisfactory welded joints.
Main characteristics of A106B steel pipes
High temperature resistance: Able to maintain stable physical and chemical properties under high temperature conditions to ensure the safe operation of the equipment.
High strength: With good mechanical strength, it can withstand stress under high pressure and high temperature.
Corrosion resistance: It has good corrosion resistance to a variety of media, which prolongs the service life of the equipment.
Easy to process: It can be cut, bent, welded and other processing as needed to meet different engineering needs.
SA-106GrB steel pipe application areas
Boiler manufacturing: used for heating surface pipes of low and medium pressure boilers (working pressure is generally not more than 5.88Mpa, working temperature is below 450℃) and high pressure boilers (working pressure is generally above 9.8Mpa, working temperature is between 450℃ and 650℃).
Petrochemical industry: as a pipeline for conveying high temperature and high pressure fluids, it is widely used in oil refining, chemical industry and other fields.
Other fields: such as power, metallurgy, shipbuilding and other industries that require high temperature working environment.
