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oil drilling pipe (YB528-65) is used to thicken the oil drilling within or outside the thick ends of

更新日期:2013-10-10  浏览:1585

 

 
Two, finishing light pipe series
1, DIN precision finishing bright precision seamless carbon steel seamless pipe
Process Description: high quality carbon steel, finishing, no oxidation bright heat treatment (NBK status), nondestructive testing, carbon steel seamless pipe wall with special equipment scrub and after high pressure washing, carbon steel seamless pipe rust on oil as anti-rust treatment, two end closure for dust treatment.
Main features: carbon steel seamless pipe outer wall high-precision, high-quality finish, heat-treated carbon steel seamless pipe no oxide layer, the inner wall high cleanliness, carbon steel seamless pipe to withstand high pressure, cold deformation, flaring, flattening no cracks, can be used for a variety of complex deformation and mechanical processing. carbon steel seamless pipe Color: white with bright, with high metallic luster.
Main use: automotive carbon steel seamless pipe, carbon steel seamless pipe for the accuracy, finish with high requirements of the users.
2, DIN precision finishing precision galvanized carbon steel seamless pipe
Process Description: DIN precision finishing with precision bright seamless carbon steel seamless pipe with the finished tube as galvanized carbon steel seamless pipe, carbon steel seamless pipe wall for as cold galvanized cover for dust treatment ends.
Main features: carbon steel seamless pipe color: white zinc, color zinc (yellow zinc), galvanized carbon steel seamless pipe surface finish, carbon steel seamless pipe wall rust, good corrosion resistance.
Main use: automotive carbon steel seamless pipe, carbon steel seamless pipe for the accuracy, finish, corrosion resistance with high requirements of the user.
3, DIN precision finishing and outside galvanized carbon steel seamless pipe Precision
Process Description: DIN precision finishing with light precision seamless carbon steel seamless pipe with the finished tube as galvanized carbon steel seamless pipe, carbon steel seamless pipe for the inner and outer walls for cold galvanized or galvanized before making OD passivation treatment ends cover for dust handling.
Main features: carbon steel seamless pipe color: white zinc, color zinc (zinc yellow), dark green passivation. Galvanized carbon steel seamless pipe internal and external surface finish, carbon steel seamless pipe, the outer wall rust, good corrosion resistance.
Passivation tube OD Main features: anti-corrosion prominent, neutral salt spray according to GB/T10125 do experiment time up to 240 hours, no red corrosion.
Main use: automotive carbon steel seamless pipe, carbon steel seamless pipe against the outer wall precision, finish, corrosion protection requirements of the users have a high
Seamless carbon steel seamless pipe plant high-pressure boiler seamless carbon steel seamless pipe Material Code:
High pressure boiler tube boiler tube is a kind of seamless carbon steel seamless pipe belonging to another species. Manufacturing methods and the same seamless carbon steel seamless pipe, but the manufacture of carbon steel seamless pipe used in steel, there are strict requirements.High-pressure boiler tubes often used in high temperature high pressure along the premise of high temperature gas and water vapor in the tube under the effect of oxidation and erosion will occur. Requires a high carbon steel seamless pipe rupture strength, high resistance to oxidation corrosion performance, and good organization is not chaos. High-pressure boiler tube is mainly used to manufacture high pressure and high pressure boiler superheater tubes, reheater tubes, windpipe, the main steam pipe.
Low and medium pressure boiler pipe GB3087-1999, high-pressure boiler pipe GB5310-1999 is used in the manufacture of various structural low pressure boiler superheated steam pipes, boiling water pipes and superheated steam locomotive boiler tubes, opium pipe, small pipe and arch bricks high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless carbon steel seamless pipe. Structural seamless carbon steel seamless pipe (GB/T8162-1999) is used for general structure and mechanical structure of seamless carbon steel seamless pipe.
Specifications and appearance quality: GB5310-95 "high-pressure boiler seamless carbon steel seamless pipe" hot-rolled carbon steel seamless pipe outer diameter 22 ~ 530mm, wall thickness 20 ~ 70mm range. Cold drawn (rolled) pipe diameter 10 ~ 108mm, wall thickness 2.0 ~ 13.0mm range.
Shaped seamless carbon steel seamless pipe is in addition to other than the cross-sectional shape pipe seamless carbon steel seamless pipe in general. By carbon steel seamless pipe section can be divided into different dimensions such as thickness profiled seamless carbon steel seamless pipe (code D), ranging shaped wall seamless carbon steel seamless pipe (code-named BD), variable diameter shaped Seamless carbon steel seamless pipe (code-named BJ). Shaped seamless carbon steel seamless pipe widely used in various structural parts, tools and mechanical parts. And tube analogy, Pipes generally have a greater moment of inertia and section modulus, a greater torsional bending capability can greatly reduce the structural weight, saving steel.
4 Chemical composition overhaul
(1) GB3087-82 "low and medium pressure boiler seamless carbon steel seamless pipe" designation. Chemical composition test methods according to GB222-84 and GB223 "steel and alloy chemical analysis methods" in the department.
(2) GB5310-95 "high-pressure boiler seamless carbon steel seamless pipe" designation. Chemical composition test methods according to GB222-84 and "steel and alloy chemical analysis method", GB223 "steel and alloy chemical analysis methods" in the department.
(3) entrance boiler carbon steel seamless pipe for chemical composition overhaul delineated by the relevant scales of the contract.
5 used steel boiler tubes
(1) high-quality carbon structural steel with steel 20G, 20MnG, 25MnG.
(2) alloy structural steel 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB so on.
(3) there is rust resistant steel used 1Cr18Ni9, 1Cr18Ni11Nb boiler tubes in addition to chemical composition and mechanical properties, the hydraulic pressure test done by the root, to be flaring, flattening test. carbon steel seamless pipe to heat treatment delivery.
In addition, the finished carbon steel seamless pipe microstructure, grain size, there are certain requirements decarburization.
6 Physical Function overhaul
(1) GB3087-82 "low and medium pressure boiler seamless carbon steel seamless pipe" designation. Tensile testing according GB/T228-87, water pressure test according GB/T241-90, flattening test according GB/T246-97, extending the coverage of trials by GB/T242-97, cold bending test according to GB244-97.
(2) GB5310-95 "high-pressure boiler seamless carbon steel seamless pipe" designation. Tension test, pressure test and flattening test with GB3087-82 delineated the same; impact test according to GB229-94, extending the coverage of trials by GB/T242-97, Grain Test by YB/T5148-93; microstructure overhaul according to GB13298-91, decarburization overhaul by GB224-87, an ultrasonic inspection by GB/T5777-96.
(3) physical functioning boiler tube inlet maintenance and targets delineated by the relevant scales of the contract.
7 Main imports and exports
(A) the main entrance of boiler tubes countries are Japan, Germany. Often entrance specifications 15914.2mm; 2734.0mm; 219.110.0mm; 41975mm; 406.460mm so on. Minimum specifications are 31.84.5mm, the length is generally 5 ~ 8m range.
(2) at the entrance claims cases, the German Mannesmann carbon steel seamless pipe plant entrance ST45 seamless boiler tubes, ultrasonic flaw detection survey found that fewer departments carbon steel seamless pipe internal defects beyond delineated and German steel plant Association of scale.
(3) imported from Germany, alloy carbon steel seamless pipe, steel mainly 34CrMo4 and 12CrMoV so on. This carbon steel seamless pipe temperature properties, and commonly used as high temperature boiler carbon steel seamless pipe.
(4) Japan imported alloy tube more specifications 426.012mm5 ~ 8m; 152.48.0mm12m; 89.110.0mm6m; 101.610.0mm12m; 114.38.0mm6m; 127.08.0mm9m so on. Execution Japanese steel industry scale JISG3458 as STPA25. This carbon steel seamless pipe used to make matching with high-temperature alloy pipe.
8 diamond core drilling seamless carbon steel seamless pipe (GB3423-82) is used for diamond core drilling drill, core rods, casing, seamless carbon steel seamless pipe.
9 oil drilling pipe (YB528-65) is used to thicken the oil drilling within or outside the thick ends of seamless carbon steel seamless pipe.carbon steel seamless pipe threading points and not two, Threading Pipe Fittings links, no threading methods and tools useful butt joint connection.
10 ships with carbon steel seamless pipe (GB5213-85) is manufactured Class I pressure vessels piping, Ⅱ grade pressure piping, boilers and Superheater carbon steel seamless carbon steel seamless pipe. Carbon steel seamless carbon steel seamless pipe wall temperature does not exceed 450 ℃, alloy seamless carbon steel seamless pipe wall temperature beyond 450 ℃.
11 automobile axle casing seamless carbon steel seamless pipe (GB3088-82) is manufactured automobile axle tube and axle axle shaft tubes of high-quality carbon structural steel and alloy steel seamless hot-rolled carbon steel seamless pipe .
12 diesel engine with high-pressure pipe (GB3093-2002) is manufactured pressure diesel injection system workable drawn seamless carbon steel seamless pipe.
13 hydraulic and pneumatic cylinder with precision internal diameter seamless carbon steel seamless pipe (GB8713-88) is a manufacturer of hydraulic and pneumatic cylinder with a diameter size with precision cold drawn or cold rolled precision seamless carbon steel seamless pipe.
 
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