SHENGTIAN GLOBAL

　　Hebei Shengtian Manufacturing Product  Seamless Steel Pipe 　　Standard:API, ASTM, DIN, GB 　　Grade Group:10#-45#, 16Mn, API J55-API P110, Q195-Q345, 　　Thickness:12 - 100 mm 　　Section Shape:Round 　　Outer Diameter(Round):3 - 20 inch 　　Place of Origin:hebei, China 　　Application:Fluid Pipe 　　Technique:Hot Rolled 　　Certification:API 　　Surface Treatment:black painting 　　Special Pipe:API Pipe 　　Alloy Or Not:Non-alloy 　　Product name:Seamless Steel Pipe 　　Port:Tian jin 　　Usage:Construction Structure

　　 Round Section Carbon Steel Galvanized Seamless Steel Pipe 　　Standard:API, BS, JIS, DIN, ASTM, GB 　　Grade Group:10#-45#, Q195-Q345, 16Mn, STBA20-STBA26 　　Grade:10#, 20#, 45#, Q235, Q345, Q195, Q215, 16Mn 　　Thickness:2 - 40 mm, 1.0 - 28mm 　　Section Shape:Round 　　Outer Diameter(Round):21.3 - 609 mm 　　Place of Origin:Hebei, China (Mainland) 　　Application:Structure Pipe, Structure Pipe 　　Technique:ERW 　　Certification:BSI, CE, ISO-9001, CE, AIF, TUV 　　Surface Treatment:Galvanized 　　Special Pipe:Thick Wall Pipe 　　Port:Tianjin

　　New Design 18 Inch Seamless Steel Pipe With Great Price 　　Standard:API, ASTM, DIN, GB, JIS 　　Grade Group:10#-45#, A53-A369, ST35-ST52 　　Grade:10#, A53(A,B), A312, A335 P11, A335 P5, A335 P9 　　Thickness:1 - 60 mm 　　Section Shape:Round 　　Outer Diameter(Round):6 - 1219 mm 　　Place of Origin:China 　　IndustryTechnique:Hot Rolled 　　Surface Treatment:mill,painted,oiled,galvanized 　　Shape:Round 　　Port:Tianjin

　　 ASTM A53 GR.B Seamless Steel Pipe 　　Standard:ASTM, API 　　Grade Group:A53-A369 　　Grade:A106(B,C), ASTM A106 Grade B 　　Thickness:1.24 - 59.54 mm 　　Section Shape:Round 　　Outer Diameter(Round):25.0 - 356.0 mm 　　Place of Origin:China 　　Application:For oil and water pipes 　　Technique:Cold Drawn 　　Certification:API 　　Length:6meter or 12meter 　　Keyword:seamless steel pipe 　　Usage:Transportation oil and water 　　Port:Tianjin

　　 ASTM A106 Seamless Steel Pipe for Oil and Gas Line 　　Standard:API, ASTM, BS, DIN, GB, JIS 　　Grade Group:10#-45#, 16Mn, A53-A369, API J55-API 　　Thickness:1.4 - 14 mm 　　Section Shape:Round 　　Outer Diameter(Round):21 - 609.6 mm 　　Place of Origin:China 　　Technique:Hot Rolled 　　Certification:API 　　Special Pipe:API Pipe 　　Size:21-609.6mm 　　Wall Thickness:1.4-14mm 　　Length:1-12m 　　Port:Tianjin

　 ASME B36.10 13 Inch Sch40 Seamless steel pipe 　　Outer Diameter：10.3-762mm 　　Length：4-12meters 　　Shape：Round 　　Material：A53(A,B), A106(B-C), API 10#, 20#, 45#, 16Mn 　　Standard：API 5L, ASTM A106 GRB，ASTM A53-2007 　　Surface：Seamless 　　Certification： ISO9001, SGS 　　Origin：China 　　Transport Package： Hexagonal Shape Bundles Wrapped 　　Trademark： Shengtian 　　Port:Tianjin

　　 ASTM A53 12 Inch St37 Carbon Seamless Steel Pipe 　　Standard:API, ASTM, BS, GB, JIS 　　Grade Group:A53-A369, Q195-Q345, ST35-ST52 　　Thickness:2.5 - 15 mm 　　Section Shape:Round 　　Outer Diameter(Round):21.3 - 406 mm 　　Place of Origin:China 　　Application:Fluid Pipe 　　Technique:ERW 　　Certification:API 　　Surface Treatment:Black Pipe / Primer painted / 3LPE / Galvanized / As requirement 　　Special Pipe:Thick Wall Pipe 　　Brand Name:Shengtian

　　 DIN2391 St52.3 Cold Rolled Seamless Steel Pipe 　　Standard:ASTM, DIN, GB 　　Standard2:ASTM A106-2006, ASTM A789-2001, DIN 2391, GB/T 8713, GB/T3639 　　Grade Group:10#-45#, 16Mn, Q195-Q345, ST35-ST52 　　Thickness:2 - 30 mm 　　Section Shape:Round 　　Outer Diameter(Round):30 - 250 mm 　　Place of Origin:China 　　Application:Hydraulic Pipe 　　Technique:Cold Rolled 　　Certification:iso9001:2008 　　Type:honed pipe 　　Surface:Customers Requirement 　　Material:Carbon steel

　　 ASTM A106 Gr.B High Quality Carbon Seamless Steel Pipe 　　Standard:ASTM, DIN, GB, JIS 　　Grade Group:A53-A369, Cr-Mo alloy 　　Thickness:1 - 120 mm 　　Section Shape:Round 　　Outer Diameter(Round):6 - 2500 mm 　　Place of Origin:China 　　Application:Industry,chemical industry 　　Technique:Hot Rolled 　　Certification:BV,TUV 　　Surface Treatment:Painted,Zinc 　　Secondary Or Not:Non-secondary 　　Surface:Black painted,PE coated 　　Length:6m,5.8m,11.8m,12m, or as required 　　Packaging Details:Standard export seaworthy package or as required. 　　Port:Tianjin port

PIC-(API 5L Seamless Steel Pipe) 　　 API 5L Seamless Steel Pipe 　　Standard:API, ASTM 　　Grade Group:A53-A369, API J55-API P110 　　Thickness:1.24 - 59.54 mm 　　Section Shape:Round 　　Outer Diameter(Round):1 - 48 inch 　　Place of Origin:China 　　Trademark:Shengtian 　　Application:For oil and water pipes 　　Technique:Cold Drawn 　　Certification:API 　　Surface Treatment:Spray high quality black anti-rust paint 　　Special Pipe:API Pipe 　　Length:6meter or 12meter 　　Surface:Black Painted 　　Material:Gr.B 　　Port:Tianjin Port

　　 API 5CT 1.5Inch Seamless Steel Pipe 　　Standard:API 　　Grade Group:API J55-API P110 　　Thickness:38 - 38.1 mm 　　Section Shape:Round 　　Outer Diameter(Round):228.5 - 228.6 mm 　　Place of Origin:China 　　Application:Oil Pipe 　　Technique:Hot Rolled 　　Certification:API 　　Surface Treatment:Galvanized 　　Length:6m,5.8m,11.8m,12m, or as required 　　Packaging Details:Standard export seaworthy package or as required. 　　Wallthickness:1.5inch 　　Port:Tianjin

　　 API 5L PSL1 Seamless Steel Pipe 　　Standard:API, ASTM 　　Grade Group:10#-45# 　　Thickness:2.77 - 59.54 mm 　　Section Shape:Round 　　Outer Diameter(Round):21.3 - 914.4 mm 　　Place of Origin:Hebei 　　Brand Name:HEBEI SHENGTIAN PIPE FITTING 　　Application:Oil Pipe 　　Technique:Hot Rolled 　　Material:Carbon steel seamless steel pipe 　　Connection:Welding 　　Model Number:1/2"-48" 　　Head Code:round steel pipe 　　Secondary Or Not:Non-secondary

　　 Hot-rolled Carbon Seamless  Steel   Pipes 　　Standard:JIS, DIN, ASTM, API, BS, GB, JIS BS GB AISI ASTM 　　Grade Group:A53-A369, API J55-API P110, 16Mn 　　Thickness:2.77 - 12.7 mm 　　Section Shape:Round 　　Outer Diameter(Round):21.3 - 219.1 mm 　　Place of Origin:China (Mainland) 　　Application:Gas pipe 　　Technique:Hot Rolled 　　Certification:ISO, API 　　Surface Treatment:Galvanized 　　Special Pipe:Thick Wall Pipe 　　Port:Tianjin

　　 30 Inch Schedule40 Black Seamless Steel Pipe 　　Standard:API, ASTM, BS, DIN, GB, JIS 　　Grade Group:16Mn, A53-A369, API J55-API P110, Q195-Q345, ST35-ST52 　　Thickness:2 - 120 mm 　　Section Shape:Round 　　Outer Diameter(Round):13.7 - 914 mm 　　Place of Origin:China 　　Application:Structure pipe,Boiler pipe,Fluid pipe,etc 　　Technique:Hot Rolled 　　Surface Treatment:Oiled,Painted,Valvanazed,etc 　　Special Pipe:Thick Wall Pipe 　　Length:3m-12m 　　Technology:Cold drawn/Hot rolled 　　Certificate:ISO/CE/API5L/API5CT 　　Material type:Carbon 　　Port:Tianjin

　　 Low price 30 Inch API 5L Seamless Steel Pipe 　　Standard:GB, ASTM, API, JIS 　　Grade Group:Q195-Q345, A53-A369, 10#-45#, ST35-ST52 　　Thickness:1.6 - 28 mm 　　Place of Origin:China 　　Application:Oil Pipe 　　Technique:Hot Rolled 　　Certification:API 　　Surface Treatment:Black coating 　　Special Pipe:API Pipe 　　Product name:Seamless Steel Pipe 　　OD:1/2" -24" 　　Wall Thickness:1.6mm-28mm 　　Packing:in bundles with steel strip 　　Ends:plain, beveled 　　Usage:Oil Gas Sewage Transport 　　Length:5.8M Length, 6M Length or 12M Length or as requested 　　End protector:Plastic

　　In the process of seamless steel pipe processing, there is often a problem that can not be ignored, that is, the weld. In order to ensure the service performance of seamless steel tube, we need to take some measures to control the distance between seams. 　　1. Seamless steel pipe manufacturer logo should be eye-catching, firm, clear handwriting, standardized, not easy to fade. 　　2. The logo shall include at least the following contents: the name and trademark of the seamless steel pipe manufacturer, product standard number, steel pipe number, product specification and traceability identification number or telephone number. For the precise seamless steel pipe, the main performance index and dimension precision level can be increased. 　　 Low price 30 Inch API 5L Seamless Steel Pipe  spray mark 　　3. Seamless steel pipe standard Section adopts such methods as spray printing, stamping, roll-off printing, printing, sticking stamps or hanging labels or hanging tags. The supplier ...

　　When stainless steel flange pipe fittings are welded, carbon compounds are precipitated by repeated heating, which decreases corrosion resistance and mechanical properties. Stainless steel flange is an important part of the pipeline, which plays an important role in connection. There are many kinds of stainless steel flange, and the standard is complicated. Because it mainly plays a connecting role, because of this, the main characteristics of stainless steel flange are the connecting mode and the tight sealing mode. The main influencing parameter is the pipe pressure. So what should we pay attention to? 　　1. In order to prevent interocular corrosion caused by stainless steel flange cover heating, the welding current should not be too uncomfortable, about 20% less than carbon steel electrode, the arc should not be too long, the interlayer cooling should be fast, and the narrow bead should be suitable. 　　2. When  ANSI 2500 10inch Forged RF Stainless Steel Flange  is welde...

　　 GOST 12820-80 Welding Stainless Steel Flange 　　Size: 1/2"-48" 　　Structure: Flanges 　　Sealing Surface: RF 　　Application: Industry 　　Pressure: Sch5c-Sch160 　　Transport Package: Ply Wooden Cases or Pallet 　　Origin: China 　　Standard: ANSI, DIN, GB, JIS, GOST 　　Material: Stainless Steel 　　Connection: Flanged 　　Manufacturing Way: Forging 　　Certificate: TUV ,Ce, ISO9001:2008 　　Shipment Term: by Sea or by Air 　　Trademark: Shengtian

　　 ASME B16.5 A182 F304 Stainless Steel Flange 　　Type:Plate Flange 　　Structure: Flanges 　　Sealing Surface: RF 　　Size: 1/2"--24" 　　Transport Package: Pallet/Wooden Case 　　Standard: ANSI, DIN, GB, JIS, GOST, BS 　　Material: Stainless Steel 　　Connection: Flanged 　　Manufacturing Way: Forging 　　Size : 1/2"--48" 　　Trademark: Shengtian 　　Origin: China

　　 Forging DIN 86030 Pn16 Stainless Steel Slip-on Flange 　　Structure: Flanges 　　Sealing Surface: RF 　　Size: 15mm-6000mm 　　Trademark: Shengtian 　　Specification: With Waterline 　　Standard: ANSI, DIN, GB, JIS, GOST 　　Material: Stainless Steel 　　Connection: Welding 　　Manufacturing Way: Forging 　　Face: RF Rtj 　　Pressure: CL150-CL2500 　　Transport Package: Plywooden Case or Pallet 　　Origin: China

　　 ANSI SS304 SS316L Stainless Steel Flange 　　Place of Origin:China 　　Brand Name:Shengtian 　　Model Number:Slip on 　　Size:1/2"-120" 　　Material:Stainless Steel 　　Standard:ANSI  　　Pressure:Class150-2500/ PN6-PN100 　　Technics:Froged 　　Surface:Clear 　　Certificate:ISO9001 　　Port:Tianjin

　　 ANSI Class 600 Stainless Steel Flange 　　Place of Origin:China 　　Brand Name:Shengtian 　　Size:DN15mm to DN5,000mm. 　　Material:Carbon steel, stainless steel 　　Standard:ANSI, MSS, AWWA, DIN, UNI, JIS, BS, SABS 　　Pressure class:150lbs to 3000lbs. 　　Type:Slip on, weld neck, socket weld, threaded and blind 　　Shape:Circle 　　Process:Forged 　　Sales market:South America, Africa, Middle East and other areas 　　Port:Tianjin

　　 ANSI B16.5 PN10 Threaded Stainless Steel Flange 　　Place of Origin:China 　　Brand Name:Shengtian 　　Model Number:stainles steel 　　Size:DN15mm to DN5,000mm. 　　Standard:ANSI, MSS, AWWA, DIN, UNI, JIS, BS 　　Pressure class:150lbs to 3000lbs 　　Flange facing:RF, FF, RTJ. etc. 　　Type:Slip on, weld neck, socket weld, threaded 　　Shape:Circle 　　Process:Forged 　　Port:Tianjin

　　 SS316 PN40 DN50 6 Inch Stainless Steel Flange 　　Place of Origin:China 　　Brand Name:Shengtian 　　Model Number:Blind 　　Standard:DIN 　　color:optional 　　Flange facing:FF/RF/MF/TG/RTJ 　　Type: Welded Neck,Socket,Threaded,Blind,Lap Joint etc 　　Technics:Froged 　　Transport Package: Wooden Case/Pallet 　　Connection: Welded,Sw,So,Threaded 　　Material:Stainless Steel 　　Port:Tianjin

　　 ANSI SS304 10 Inch Forged RF Stainless Steel Flange 　　Size: 1/2"- 72" 　　Pressure:Class150/300/600/9001500 　　Material:Stainless Steel 　　Certificate:ISO9001:2008 　　Standard:ANSI 　　Technics:Forged Casting 　　Trademark: Shengtian 　　Origin:China 　　Connection: Flanged 　　Transport Package: Pallet, Wooden Case 　　Sealing Surface: RF 　　Standard: JIS，ASME,DIN,BS, SNBS,EN,GOST 　　Payment:T/T,L/C

　　 ANSI B16.5 Slip-on Stainless Steel Flange 　　Place of Origin:China 　　Brand Name:Shengtian 　　Model Number:FLG 　　Standard:ANSI, ASTM DIN EN BS JIS GOST etc. 　　Type:Slip on Flange 　　Standard or Nonstandard:Standard 　　Size:15mm-6000mm 　　Surface treatment:cnc machined 　　type:weld neck, slip on, blind, threaded, socket weld, so on 　　Pressure:150#-2500# 　　Process:forged 　　Packaging Details:plywood case ,plywood pallet 　　Port:tianjin

　　 ANSI 2500 10inch Forged RF Stainless Steel Flange 　　Place of Origin:China 　　Brand Name:Shengtian 　　Technology:Forged 　　material:Stainless steel 　　Type:Lip-on 　　Sales market:South America, Africa, Middle East and other areas 　　Transport Package: Plywooden Case or Pallet 　　Specification: With Waterline 　　Standard: ANSI, DIN, GB, JIS, GOST 　　Surface:Galvanized 　　Certificate:ISO9001 　　Connection:Butt Weld

　　 ASTM A105 Class 600 Stainless Steel Blind Flange 　　Standard:ANSI, BS, DIN, GB, JIS, JPI, ASME 　　Type:Blind Flange 　　Surface treatment:Galvanized 　　Connection:Weldimg 　　Application:Boiler and Pressure Vessel, Petroleum, Chemicals, Oil and Gas 　　Place of Origin:China 　　Brand Name:Shengtian 　　Certificate:ISO9001 　　Pressure:150bls-2500bls 　　Process:forged 　　Packaging Details:plywood case ,plywood pallet 　　Port:tianjin

　　 DIN 2573  PN16 Stainless Steel Slip-on Flange 　　Place of Origin:China 　　Brand Name:Shengtian 　　Size:1/2"~24" Flange 　　Material:Stainless Steel 　　Pressure:150LB-2500LB 　　Flange Type:SO Flange,WN Flange 　　DIN Standard:2573 　　Experiece:20 years experience 　　Equipment:CNC lathe 　　Shape:Round 　　Certificate:ISO9001:2008 , BV , PED, TUV Certificate 　　Standard or Nonstandard:Standard 　　Packaging Details:Seaworthy plywood case for Flange Stainless Steel 　　Port:Tianjin

　　 En1092-1 Forged Stainless Steel Flanges 　　Size:1/2"-48" 　　Standard:DIN, ASME, EN, DIN, ISO, JIS, GB 　　Facing:RF/RJ/ FF 　　Pressure:150lbs-2500lbs 　　Application:Chemical 　　Certificate:ISO9001:2008,CE,TS 　　Pressure:PN6-PN40 　　Payment Terms: L/C, T/T 　　Trademark:Shengtian 　　Material: Stainless Steel 　　Origin:China 　　Port:Tianjin

　　Forged stainless steel flange is a removable connection. Forged stainless steel flanges are generally less carbon and less rusty than cast flanges. They have good streamlined forgings, compact structures and better mechanical properties than cast flanges. They can withstand higher shear and tensile forces. The internal structure is uniform, and there are no harmful defects such as blowhole and inclusion in the casting, and the price is affordable. 　　High pressure  En1092-1 Forged Stainless Steel Flanges  is used for connecting pipelines or equipment with pressure higher than 10 MPa. At present, high-pressure flange mainly includes traditional high-pressure flange and high-pressure self-tightening flange. The plastic deformation of sealing gasket (elliptical gasket, octagonal gasket, lens gasket, etc.) is used to achieve sealing effect. stainless steel flange is connected to the end of the pipe to make the pipe and the tube connected with each other. There are holes in the ...

　　Hollow Sections can be divided into seamless and welded seams. Seamless hollow sections is formed by extrusion of seamless round pipe. hollow sections, thick wall square steel pipe, large diameter hollow sections, seamless hollow sections, low alloy hollow sections,  20X20 Galvanized Steel Hollow Section , hollow sections for tower crane, Q345B low alloy hollow sections, 20 # seamless hollow sections 　　Common specifications and implementation standards 　　500*500*8~25 Hollow Sections Steel Pipe  140*140*4~14 Hollow Sections  Steel Pipe 　　135*135*4~14 Hollow Sections  Steel Pipe 130*130*4~12 Hollow Sections  Steel Pipe 　　450*450*8~25 Hollow Sections  Steel Pipe 120*120*4~12 Hollow Sections  Steel Pipe 　　400*400*8~25 Hollow Sections  Steel Pipe 110*110*4~12 Hollow Sections  Steel Pipe 　　350*350*8~25 Hollow Sections  Steel Pipe 100*100*4~12 Hollow Sections  Steel Pipe 　　300*300*8~25 Hollow Sections  Steel Pipe 80*8...

　　As the quality of seamless steel pipe products continues to rise, the use of raw materials is declining, a variety of new building materials are also listed, and the renewal of construction products is also fast. All kinds of management manufacturing industry have a strong foundation. 　　The main products on the market are stainless steel, carbon steel and other  API 5CT 12 Inch seamless steel pipe  of different calibers; and various elbow pipe fittings as well as pipe fittings and plastic pipes, with numerous sizes. These products are widely used in petrochemical, shipping and other engineering fields.  Now the seamless steel pipe industry is also struggling, so that the pipeline industry has set off another upsurge. 　　Seamless steel pipe products need to be diversified and personalized, and to maintain the quality of products, can not allow a unit to produce too many varieties of products in order to schedule, so seamless steel pipe enterprises pursue quality assu...

　　The transportation of anticorrosive galvanized steel pipe is different from that of ordinary galvanized steel pipe. Because of the anticorrosive coating on the outer wall, the following problems must be paid attention to during transportation. 　　Firstly, when lifting anti-corrosion  API 5L X70 Galvanized Steel Pipe , soft sling or rope without damaging the anti-corrosion layer should be adopted to avoid damaging the anti-corrosion layer. 　　Secondly, the anti-corrosion galvanized steel pipe can not be treated with casing during transportation, so it is easy to cause damage to the anti-corrosion coating. 　　Third: Before the anticorrosive galvanized steel pipe goes down the ditch, it is necessary to clean the ditch so that the bottom of the ditch is smooth and there are no stones, bricks or other debris. If the upper layer is very hard, it should first pave 100 mm soft fine soil at the bottom of the trench. After the anti-corrosion galvanized steel pipe goes down the trench, ...

　　What should we pay attention to when choosing carbon steel boiler pipe? Choice lies in choosing carbon steel boiler pipe. We must avoid choosing a product that is not suitable for us. Understanding the style and combining the personal choice requirements with it when using carbon steel boiler pipe has become the core of choosing carbon steel boiler pipe and understanding the product quality and use details. Carbon steel boiler pipe selection, better market base. 　　(1) Carbon: The higher the carbon content, the higher the rigidity, but the carbon steel boiler pipe worse the plasticity and toughness. 　　(2) Sulphur: It is a harmful impurity in steel. Carbon steel boiler pipe with high sulphur content is easy to crack when it is processed under pressure at high temperature. It is usually called hot brittleness. 　　(3) Phosphorus: It can make the plasticity and toughness of carbon steel boiler pipe decrease obviously, especially at low temperature. This phenomenon is called cold bri...

　　(1) Geometric dimension inspection of seamless welded steel pipe outer diameter, wall thickness, bending degree and length can be inspected by external caliper, micrometer, bending relief ruler and length tape ruler on the inspection table. 　　(2) Visual inspection is generally used to inspect the inner and outer surfaces of seamless welded steel pipe, and besides visual inspection, reflection prism can also be used to inspect the inner surfaces of seamless welded steel pipe. Some special purpose seamless welded steel pipe also require non-destructive testing, including eddy current, magnetic flux leakage, ultrasonic, magnetic particle testing, etc. to inspect the internal and external surface quality of seamless welded steel pipe. 　　(3) In order to verify that the mechanical properties of  API 5CT PSL2 Seamless Welded Steel Pipe  meet the requirements of the standards, it is necessary to test the mechanical properties of seamless welded steel pipe by sampling. 　　(4) N...

　　Firstly, the specifications and models determine the price. 　　The external diameter and wall thickness specifications of carbon steel seamless pipes directly determine the price of steel pipe. After all, the basic price of each specification of carbon steel seamless pipesis different. 　　Secondly, the implementation criteria determine the price. 　　At present, the main implementation standards of carbon steel seamless pipes are Ministry Standard, National Standard and American Standard. But for a while, the carbon steel seamless pipes manufactured by manufacturers can not even meet these standards. The prices of each standard are different, basically the difference is about 400 yuan/ton. 　　Third: Material determines price 　　At present, the most common  Low Price ASTM A106 Sch40 Carbon Steel Seamless Pipes  material on the market is Q235B, which is the cheapest one. Other materials are Q345B, L290, L360 and so on. The higher the grade of material, the higher the natu...

　　The biggest difference between galvanized steel section hollow and other long strips just now is that there are no seams around it, and the section of steel pipe is hollow. Because of the different cross-section shapes, they are often classified as circular and heterogeneous steel pipes. In terms of actual efficiency, of course, circular steel pipes are more common. What are the low uses of galvanized steel section hollow? 　　When it comes to the use of galvanized steel section hollow, we are most familiar with the use of natural gas, water and other daily use of fluid transport. In addition to these common and well-known transportation of natural gas and water, galvanized steel section hollow are also widely used to transport oil, gas and some solid materials. The pipeline transportation of galvanized steel section hollow facilitates people's modern life and greatly reduces the transportation cost of natural resources. 　　Secondly, because the  DN400 Sch5 36 Inch Galvanized S...

　　The length of oil pipeline manufacturer is usually 12 meters when producing oil pipe. The length deviation of oil steel pipeline delivered according to fixed length should be within the range of plus or minus 500 millimeters. The production rate of fixed length pipe is much lower than that of normal length oil pipeline, so it is reasonable for the enterprise to raise the price. The range of price increase varies from enterprise to enterprise. Generally, it is about 10% on the basis of base price. 　　The oil pipeline fixed length should be within the normal length range, which is a fixed length size required in the contract. However,  API 5CT N80 Seamless Steel Oil Pipeline  is impossible to cut the absolute length of fixed length in practice, so the standard stipulates the allowable positive deviation value for the length of fixed length. 　　If there is no length deviation and cutting allowance stipulated in the standard, the supplier and the buyer shall negotiate and spe...

　　Process characteristics The main technical characteristics of spiral steel pipe: 　　A. During the molding process, the steel plate is deformed uniformly, the residual stress is small, the surface does not produce scratches. The processing of spiral steel pipe in the diameter and wall thickness of the size of the specifications have greater flexibility, especially in the production of high-grade thick-walled pipe, especially in small and medium-sized thick-walled pipe with other technology can not match the advantages to meet the user In the spiral steel pipe specifications more requirements. 　　B. The use of advanced double-sided submerged arc welding process, can be achieved in the best location of welding, not prone to wrong side, welding and not welding and other defects, easy to control the quality of welding. 　　C. ST37 Cold Rolled Seamless Carbon Steel Pipe  quality inspection, so that the whole process of production of steel pipe are effective in the detection, monitor...

　　Seamless steel pipe has gained a firm foothold in the pipeline industry by virtue of its many advantages, and has been widely used, such as pipelines for transporting oil, natural gas, gas, water and some solid materials. In the market, the quality of seamless steel pipe is mixed. How can we select qualified products? Xiaobian reminds you that the following five points should be kept in mind when choosing seamless steel pipes. 　　1. Observe the signs and specifications on seamless steel pipes, as well as the name of the plant and related information. 　　2. Look at the quality certificate provided by the seamless steel pipe production enterprise. 　　3. When purchasing  ASTM A106 GR.B Galvanlzed Seamless Steel Pipe , we should observe whether there are cracks, scars and so on on on the surface of the tubes. 　　4. Observe the uniformity of the coating on the surface of seamless steel pipe, which can show whether employees are responsible for their work. 　　5. In order to avoid...

　　Threaded flange is a kind of non-welded flange, which processes the inner hole of flange into pipe thread and connects with threaded pipe. Compared with flat welded flange or butt welded flange, threaded flange has the characteristics of convenient installation and maintenance, and can be used in some pipelines where welding is not allowed.Threaded flange has the following functions: 　　1.  ASME A182 F304 Class 150 Stainless Steel Threaded Flange  can connect the pipeline and keep the sealing performance of the pipeline. 　　2. Threaded flange is more convenient to replace a section of pipeline by using flange. 　　3. The use of threaded flange is more convenient for the disassembly and inspection of pipeline conditions. 　　4. More conducive to the closure of a section of pipeline.

　　Weld neck flanges is composed of a flange with an inner hole in the center of the flange and a plurality of screw holes on the flange. One side of the flange is provided with a neck-shaped protrusion. The inner diameter of the neck-shaped protrusion is equal to and connected with the inner diameter of the inner hole. On the other side of the flange is provided with a circular depression, the center of the circular depression coincides with the central axis of the inner hole, and the radius ratio of the circular depression to the inner hole. Large radius, there is also a circular depression in the circular depression. The center of the circular depression coincides with the central axis of the inner hole, and the outer surface of the circular depression coincides with the outer surface of the circular depression. 　　Weld neck flanges advantages:  ASTM A182 Sch20 Stainless Steel Weld Neck Flange  with neck belongs to flat-welded flange, because it has a short neck, which impr...