What kind of precision steel tubing is
•: What kind of precision seamless tubes is - bright precision seamless precision finishing
•: precision steel Process Description: high quality carbon steel; finishing; no oxidation of bright heat treatment (NBK state), non-destructive testing, pipe wall with special equipment to scrub and after high pressure washing, anti-rust oil for rust on steel processing, both ends of the seal Cover for dust treatment.
•: precision steel Main features: Pipe Wall precision, high-quality finish, steel after heat treatment no oxide layer, the inner wall of high cleanliness steel to withstand high pressure, cold deformation, flaring, flattening without cracks, can make a variety of complex deformation and mechanical processing of steel color: white with bright, with high metallic luster.
•: precision steel main purposes: automotive precision steel, bearings, sleeve etc. of the steel pipe, finish high demands of users.
•: precision steel Material: 10 #; 20 #; 35 #; 45 #; GCr1515CrMo; 12CrMoV; 16Mn; 27SiMn; etc.
Seamless steel pipe - Classification and Uses
Seamless steel pipe manufacturing process because of its different, is divided into hot-rolled (extrusion) seamless steel pipe two kinds of seamless and cold drawn (rolled). Cold drawn (rolled) pipe is divided into two kinds of circular pipe and shaped pipe .
a. Process Overview
Hot-rolled (extruded seamless pipe): round tube → heating → perforation → three-roll rolling, rolling or extrusion → → set off the pipe diameter (or reducing) → cooling → billet tube → straightening → hydrostatic test (or testing) → mark → storage.
Cold drawn (rolled) seamless steel pipe: round tube → heating → perforation → Heading → annealing → pickling → oiled (copper) → multi-pass cold drawn (cold) → billet tube → heat treatment → straightening → hydrostatic testing (testing) → mark → storage.
. b seamless steel tubes, because of their different purposes and divided into the following varieties:
GB / T8162-1999 (structure seamless steel pipes) is mainly used for general structural and mechanical structure representative of material (grade): Carbon Steel No. 2045 steel; steel Q34520Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc. .
GB / T8163-1999 (transmission fluid with seamless steel pipe). Mainly used for conveying fluid pipeline projects and large-scale equipment. Representative material (grade) for 20, Q345 and so on.
GB3087-1999 (low and medium pressure boiler seamless steel tubes) is mainly used in industrial boilers and domestic boilers low pressure fluid transportation pipeline. Representative material for 1020 steel.
GB5310-1995 (high-pressure boiler seamless steel tubes) are mainly used on power plants and nuclear power plant boiler high temperature, high pressure fluid collection tank and pipeline transportation. Representative material for 20G, 12Cr1MoVG, 15CrMoG like.
GB5312-1999 (ships with carbon and carbon manganese steel seamless pipe), mainly used in ship boilers and Superheater I, II grade pressure pipe. Representative material for 360,410,460 steel grade and so on.
GB1479-2000 (high pressure chemical fertilizer equipment, seamless steel pipe) is mainly used in high temperature and high pressure fluid delivery pipe Fertilizer equipment. Representative material for 2016Mn, 12CrMo, 12Cr2Mo like.
GB9948-1988 (petroleum cracking seamless steel pipe) is mainly used in oil refinery's boilers, heat exchangers and pipes conveying fluid. The representative material for 2012CrMo, 1Cr5Mo, 1Cr19Ni11Nb like.
GB18248-2000 (seamless steel gas cylinders) is mainly used for the production of gas, hydraulic cylinders. The representative material for 37Mn, 34Mn2V, 35CrMo and so on.
GB / T17396-1998 (hot-rolled seamless steel hydraulic prop) is mainly used for the production of coal mine hydraulic support and cylinders, columns, and other hydraulic cylinders, columns. The representative material for 204527SiMn like.
GB3093-1986 (diesel engine with high-pressure seamless steel pipe) is mainly used for high-pressure diesel injection system tubing. Its generally cold drawn steel tube, which represents the material is 20A.
GB / T3639-1983 (cold drawn or cold rolled precision seamless steel tubes), mainly used for mechanical structure, carbon pressure equipment, requiring high dimensional accuracy, surface finish good pipe. The representative material 2045 steel.
GB / T3094-1986 (cold drawn seamless steel pipe shaped) is mainly used for the production of structural parts and components, the material is high-quality carbon structural steel and low alloy steel.
GB / T8713-1988 (hydraulic and pneumatic cylinder with precision internal diameter seamless steel pipe) is mainly used for the production of hydraulic and pneumatic cylinder with drawn or cold-rolled seamless steel pipe diameter size with precision. The representative material for steel, 2045 .
GB13296-1991 (boiler, heat exchanger with stainless steel seamless pipe), mainly used in chemical boiler, superheater, heat exchangers, condensers, catalytic tubes, etc. used in high temperature, high pressure, corrosion-resistant steel. Its Representative material for 0Cr18Ni91Cr18Ni9Ti, 0Cr18Ni12Mo2Ti like.
GB / T14975-1994 (structure stainless steel seamless pipe). Mainly used for general structures (hotels, restaurants decoration) Atmospheric corrosion and mechanical structure of the chemical industry, acid corrosion and has a certain strength of the pipe. The representative material for 0- 3Cr130Cr18Ni91Cr18Ni9Ti, 0Cr18Ni12Mo2Ti like.
GB / T14976-1994 (fluid transport stainless steel seamless pipe). Mainly used for pipeline transportation of corrosive media. Representative material for 0Cr130Cr18Ni91Cr18Ni9Ti, 0Cr17Ni12Mo20Cr18Ni12Mo2Ti like.
YB / T5035-1993 (automobile axle casing seamless steel pipe) is mainly used for the production of automobile axle casing and drive shaft tubes Bridge shell quality carbon structural steel and alloy steel hot-rolled seamless steel tubes. Its representatives Made of 4545Mn240Cr, 20CrNi3A like.
Source: Shandong Precision Steel Plant http: //www.sdlggg.com Tags: precision steel precision seamless precision seamless precision steel plant
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