Seamless steel pipe with hollow section, a large number of pipes used for conveying fluid, such as the transmission of oil, natural gas, gas, water and some solid materials such as pipeline. Steel pipe and round steel and other solid steel compared to the same bending strength, the weight is light, Seamless Steel Pipes is an economic section of steel, widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, car drive shaft, bicycle Racks and steel scaffolds used in construction, etc., can improve the utilization of materials, simplify the manufacturing process, save materials and processing time, Seamless Steel Pipes has been widely used to manufacture steel.
Seamless steel pipe in terms of what is higher than the general steel pipe, and the use of seamless steel pipe will be seamless treatment, so the pressure can also be very strong. Seamless steel pipe does not like the general steel pipe in the use of a period of time after the show a lot of rust marks, and seamless steel pipe to use, will not produce a variety of damage to the human body.
Seamless steel pipe is now widely used in the field, such as in the construction, transportation, etc., the reason why the seamless steel pipe can be a lot of time, there must be a steel pipe's strengths and advantages. Seamless Steel Pipes Than the use of the kind of general steel pipe, seamless steel pipe with a series of messy high-tech manufacturing technology, and then have a seamless steel pipe has a very good quality.
Seamless steel pipe basic parameters of the characterization: steel, specifications (diameter and wall thickness), quality (surface conditions, dimensional tolerances and mechanical properties) and packaging, marking, hot rolling and cold drawing (rolling) ordinary carbon steel , High-quality carbon steel structure, ordinary low-alloy structural steel and alloy structural steel for the delivery of fluid piping or the production of various structures, parts of the general use of seamless steel pipe.
Seamless steel pipe material introduction:
GB / T8162-1999 (structural seamless steel pipe). Mainly used for general structure and mechanical structure. Its representative material (grade): carbon steel 20,45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo and so on. In the case of
GB / T8163-1999 (Seamless steel pipe for conveying fluid). Mainly used for engineering and large equipment on the delivery of fluid pipelines. On behalf of the material (grade) for the 20, Q345 and so on. In the case of
GB3087-1999 (low pressure boiler seamless steel pipe). Mainly used for industrial boilers and live boilers transport low and medium pressure fluid pipeline. Seamless Steel Pipes Representative material for the 10,20 steel. In the case of
GB5310-1995 (Seamless Steel Tube for High Pressure Boiler). Mainly used for power plants and nuclear power plant boilers on the high temperature, high pressure conveying fluid sets and pipes. Representative material for the 20G, 12Cr1MoVG, 15CrMoG and so on.
GB5312-1999 (marine carbon steel and carbon manganese steel seamless steel pipe). Mainly used for ship boilers and superheater with I, II-level pressure tube. On behalf of the material for the 360,410,460 steel grade. GB1479-2000 (Seamless Steel Tube for High Pressure Fertilizer Equipment). Seamless Steel Pipes Mainly used for high temperature and high pressure fluid transport equipment pipeline. Representative material for the 20,16Mn, 12CrMo, 12Cr2Mo and so on. GB9948-1988 (Seamless Steel Pipe for Petroleum Cracking). Mainly used in oil smelter boilers, heat exchangers and their delivery fluid pipelines. Its representative material for the 20,12CrMo, 1Cr5Mo, 1Cr19Ni11Nb and so on. In the case of
GB18248-2000 (seamless steel pipe for gas cylinders). Mainly used for the production of various gas, hydraulic cylinders. Its representative material is 37Mn, 34Mn2V, 35CrMo and so on. In the case of
GB / T17396-1998 (hot rolled seamless steel pipe for hydraulic support). Mainly used for the production of coal hydraulic support and cylinder, column, and other hydraulic cylinders, columns. Seamless Steel Pipes Its representative material for the 20,45,27SiMn and so on. GB3093-1986 (High Pressure Seamless Steel Tube for Diesel Engines). Mainly used for diesel engine injection system high pressure tubing. The steel pipe is generally cold drawn tube, its representative material for the 20A.