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3LPE anti-corrosive steel tube is divided into general grade and strengthen grade. Their fundamental difference lies in the different thickness. For common specifications of 219-478, the thickness is around 2.0 mm, and that of strengthen one is around 2.7 mm. Their prices have a differential of about 7 yuan per square meter. Choose what kind of grades of anti-corrosive should according to the customers` specific requirements. If used as ordinary outside casing corrosion, common grade is more than enough. If used to transfer fluid directly, such as acid and alkali or gas, strengthen one is better. Since 3 PE anti-corrosive spiral steel has built the international first-class production to realize energy saving society in China, our factory has been committed to do the work of energy saving energy transmission, research and development. The advent of 3 PE anti-corrosive pipe is the best channel of natural gas transportation. But the situation of the domestic seamless pipe spreading abroad has been the scar of the people for many years. 3LPE anti-corrosion steel tube spot manufacturers craft is advanced anti-corrosion technology that introduced from abroad in the late 1990 s. Its full name is the fusion bonded epoxy/extruded polyethylene protective layer structure. 3 PE anti-corrosion coating technology colligates ring oxygen and extruded polyethylene these two kinds of anti-corrosive coating which possess excellent performance, with combination of the interface properties of epoxy coating and chemical characteristics and advantages of extruded polyethylene anti-corrosive layer mechanical protection feature. Thereby it can significantly improve their sex. Thus, 3 PE coating is the ideal of buried pipeline outer protective layer. According to authoritative department detection, the serve life of the buried pipeline with 3 PE anticorrosive technology may be up to 50 years. At present, the key network of pipes in China adopt the 3 PE anti-corrosive coating outside, many pipeline abroad also adopt this technology. Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe, Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.

With the continuous development of offshore oil and gas fields, pipelines for transporting the amount of offshore oil and gas is growing. Currently coating structure submarine pipelines used mainly 3LPE and FBE. 3LPE long-term use temperature generally does not exceed 70 ℃, short-term up to 80 ℃. As for the transport of crude oil temperature exceeds 80 ℃, use 3LPE coating structure is clearly not meet the technical requirements. While the long-term use temperature FBE coating can reach 115 ℃, to meet the above design temperature requirements, but FBE coating brittle, intolerance mechanical damage in transport and offshore pipe-laying, anti-corrosion coating damage is more serious, Currently subsea pipelines generally do not advocate the use of corrosion in the form of a single layer FBE. To effectively address transport conditions at high temperature subsea pipeline corrosion problems, foreign countries have been successfully 3LPP coating structure to pipeline, such as the Gulf of Mexico deep water subsea pipelines and the UK North Sea oil and gas pipelines, etc., are used 3LPP structure, but 3LPP coating applied to subsea pipeline in the country there is no precedent. Polypropylene has excellent mechanical properties, its yield, tensile, compression strength, hardness, elasticity and wear resistance than the high density and so polyethylene (HDPE) high, and the polypropylene very low water absorption, water 24h The water absorption of only 0.01%, far lower than HDPE. Polypropylene resistant to chemical stability, electrical insulation, and lower density than polyethylene. In terms of heat resistance, long-term use of modified polyethylene at a temperature of -30 ~ 110 ℃. 3LPP is developed on the basis of 3LPE a coating on the excellent performance of anti-corrosion coating. 3LPP 3LPE principle and structure similar to that adopted in the underlying steel fusion bonded epoxy (FBE), to increase the adhesion to the metal, in the middle of a polypropylene copolymer adhesive (PPA) layer, and an outer layer of polypropylene (PP) strong bond, both high resistance to mechanical damage ability, and good resistance to cathodic stripping performance. 3LPP modified by coating structure, the use of temperature above 110 ℃, its excellent resistance to corrosion and high temperature performance to win the broad market prospects, high temperature coating does not make up for other deficiencies, to achieve at a higher temperature and aim at deep water applications, it is emerging more advanced anti-corrosion coating internationally. Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe, Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.

Welded steel pipe refers to a steel pipe with seams on the surface that is formed by bending steel strips or steel plates into round, square, and other shapes and then welding them. The billet used for welded steel pipes is steel plate or strip steel. Since the 1930s, with the rapid development of high-quality strip steel continuous rolling production and the advancement of welding and inspection technology, the quality of welds has been continuously improved, the variety and specifications of welded steel pipes have increased, and they have replaced seamless steel pipes in more and more fields. Welded steel pipes have lower costs and higher production efficiency than seamless steel pipes. Steel pipes are divided into seamless and welded pipes. Welded pipes are divided into straight seam steel pipes and spiral steel pipes. Straight seam welded pipes are divided into ERW steel pipe (high-frequency resistance welding) and LSAW steel pipe (straight seam submerged arc welding). The welding process of spiral pipes is also the difference between submerged arc welding (SSAW steel pipe for short) and LSAW steel pipe in the form of welds, and the difference with ERW is the difference in the welding process. Submerged arc welding (SAW steel pipe) requires the addition of medium (welding wire, flux), but ERW does not require it. ERW is melted by medium-frequency heating. Steel pipes can be divided into two categories according to the production method: seamless steel pipes and welded steel pipes. Seamless steel pipes can be divided into hot-rolled seamless pipes, cold-drawn pipes, precision steel pipes, hot-expanded pipes, cold-spun pipes, and extruded pipes according to the production method. Seamless steel pipes are made of high-quality carbon steel or alloy steel and are divided into hot-rolled and cold-rolled (drawn). The production process of straight seam welded pipes is simple, with high production efficiency, low cost, and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Narrower billets can be used to produce welded pipes with larger diameters, and billets of the same width can also be used to produce welded pipes with different diameters. However, compared with straight seam pipes of the same length, the weld length increases by 30~100%, and the production speed is lower. Therefore, smaller-diameter welded pipes are mostly welded by straight seam welding, while large diameter welded pipes are mostly welded by spiral welding. Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe, Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.

The API casing is generally used for the borehole wall support in the drilling as well as after the completion of a well, so as to make sure the smooth running of the drilling process and also the normal procedure of the whole oil well after well completion. As a result of the advancement in recent years, making use of the product is much more substantial. It is generally utilized in oil, gas, coal bed methane, water system, thermal electrical power generation, hydropower penstock, thermal electrical power generation, dredging design, as well as other sectors. This product generally makes use of smooth steel pipeline as the raw product. Some large diameter and special wall thickness items make use of straight seam pipeline as the pipeline body. The body should be processed with screw strings at both ends. One end is linked to the combining, while the other end is equipped with the string protector. Thread as well as coupling link are used between the casings. In addition, the pipe body of various steel qualities ought to correspond to different couplings. Production criterion: API Spec 5CT Certificate NO.: 5CT-0735 1. Steel quality J55, K55, L80, N80, P110 2. External size 4 1/2″, 5″, 5 1/2″, 6 5/8″, 7″, 7 5/8″, 9 5/8″, 10 3/4″, 13 3/8″, 16″, 18 5/8″, 20″ 3. Wall density 5.21 – 16.13 mm 4. Thread kind SC( Short round string), LC( Long round thread), BC( Buttress string). 5. Length. R1( 4.88-7.62 m), R2( 7.62-10.36 m), R3( 10.36-14.63 m). Casing strings. According to the function of well cementation and also the feature of casing, the item down right into a well can be mostly divided into the surface area, intermediate, and also manufacturing types. 1. Surface area casing: The setting depth varies from 10s of meters to hundreds of meters. It depends upon different developments. 2. Intermediate casing: It is used for securing the facility development, so about make certain the smooth running of boring. It can separate huge sector lost-circulation area, stressful water layer, significant collapse strata, in addition to non-target layer of oil or gas, and so on 3. Production casing: It is used to divide the gas, water, or oil layer of different stress from various other strata, so regarding create the oil as well as gas stations. This guarantees the long-lasting production as well as satisfies the extraction and also stimulation needs. The API tubing is defined as a pipe that drops right into the wells for the production or injection of fluids. In oil expedition, it drops hole to remove underground oil or gas, depending on threaded link. It normally travels through the oil casing, which plays a role of protection and also seclusion. The tubing dimension in API standard is 1.05 [- 4 [. Our manufacturing array is 2 3/8 [- 4 1/2″ (60.32 mm – 114.3 mm). The pipe produced within this variety is used most regularly in oil and also gas exploration. 1. Specification. API SPEC 5CT. 2. Steel quality. J55, K55, N80, L80, P110, etc. 3. Outdoors diameter. 2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2". 4. Wall thickness. 4.24 mm – 16.0 mm. 5. Product type. Non-upset tubing (NU), External distressed tubing (EU), Integral joint tubing (IJ). 6. Length. R1( 6.10-7.32 m), R2( 8.53-9.75 m), R3( 11.58-12.80 m). 7. String type. Round thread( 8RD, 10RD). The API casing is mostly made use of for the borehole wall surface assistance in the drilling and also after the conclusion of a well, so as to make certain the smooth operating of the boring process and the regular procedure of the entire oil well after well conclusion. It is mostly made use of in petroleum, all-natural gas, coal bed methane, water supply, thermal electrical power generation, hydropower penstock, thermal power generation, digging up engineering, as well as various other markets. Thread and also combining connection are made use of in between the casings. Manufacturing casing: It is made use of to divide the oil, water, or gas layer of various stress from various other strata, so as to form the oil and gas networks. The pipe created within this range is made use of most frequently in oil as well as gas expedition. Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe, Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.

API 5L line pipe (Seamless and welded pipe) of all grades have PSL1 and PSL2 two product specifications, they are different on chemical composition, manufacturing processes, mechanical strength, heat treatment, test records, traceability etc. PSL is the short name of product standard level. The product standard level of line pipe have PSL1 and PSL2, also we could say the quality standard divided in PSL1 and PSL2. PSL2 is higher than PSL1, not only the inspection standard is different, also the chemical property, mechanical strength standards are different. So when place the order for the API 5L line pipe, there should be stated clearly for the size, grades these general specification, also have to clarify the production standard leve, PSL1 or PSL2. PSL2 is more strictly than PSL1 on the chemical properties, tensile strength, non-destructive test, and impact test. API 5L PSL1 steel line pipe not required to do the impact test. For API 5L PSL2 steel line pipe, except Grade X80, all the other grades of API 5L line pipe required the impact test at temperature of 0℃. The average value of Akv: longitudinal direction≥41J, tranverse direction≥27J. For API 5L Grade X80 PSL2 line pipe, at 0℃ for all the size, impact test the Akv average value: longitudinal direction≥101J, tranverse direction≥68J. For API 5L PSL2 line pipe shall perform the hydraulic test for each single pipe, and in the API standard specification not permit to have Non-destructive test replace the hydraulic test, this also is a big difference between Chinese standard and API 5L standard. For PSL1 not required Non-destructive test, for PSL2 shall do the Non-destructive test for each single pipe. Chemical composition and mechanical strength is also different between API 5L PSL1 line pipe and API 5L PSL2 line pipe. For the detailed specification as below. API 5L PSL2 have restrictions with the carbon equivalent content, where for the carbon mass fraction greater than 0.12%, and equal or less than 0.12%. Different CEQ shall be applied. For line pipe in PSL2 tensile strength have maximum limits. API 5L PSL 1 Chemical Composition and Mechanical Properties: Standard Steel grade Chemical Compositions(%) Mechanical Properties C(Max) Mn(Max) P(Max) S(Max) Tensile strength(Min) Yield strength(Min) Psi X 1000 Mpa Psi X 1000 Mpa API 5L PIPE PSL 1 A25 CL I 0.21 0.60 0.030 0.030 45 310 25 172 CL II 0.21 0.60 0.030 0.030 A 0.22 0.90 0.030 0.030 48 331 30 207 B 0.26 1.20 0.030 0.030 60 414 35 241 X42 0.26 1.30 0.030 0.030 60 414 42 290 X46 0.26 1.40 0.030 0.030 63 434 46 317 X52 0.26 1.40 0.030 0.030 66 455 52 359 X56 0.26 1.40 0.030 0.030 71 490 56 386 X60 0.26 1.40 0.030 0.030 75 517 60 414 X65 0.26 1.45 0.030 0.030 77 531 65 448 X70 0.26 1.65 0.030 0.030 82 565 70 483 API 5L PSL 2 Chemical Composition and Mechanical Properties: Standard Steel grade Chemical Composition(%) Mechanical Properties C Mn P S Tensile strength Yield strength (Max) (Max) (Max) (Max) Psi X 1000 Mpa Psi X 1000 Mpa API 5L PIPE PSL 2 B 0.22 1.20 0.025 0.015 60-110 414-758 35-65 241-448 X42 0.22 1.30 0.025 0.015 60-110 414-758 42-72 290-496 X46 0.22 1.40 0.025 0.015 63-110 434-758 46-76 317-524 X52 0.22 1.40 0.025 0.015 66-110 455-758 52-77 359-531 X56 0.22 1.40 0.025 0.015 71-110 490-758 56-79 386-544 X60 0.22 1.40 0.025 0.015 75-110 517-758 60-82 414-565 X65 0.22 1.45 0.025 0.015 77-110 531-758 65-82 448-565 X70 0.22 1.65 0.025 0.015 82-110 565-758 70-82 483-565 Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe , Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.

The hot rolled plate has low hardness, easy processing and good ductility. The cold rolled sheet has high hardness and is relatively difficult to process, but is not easily deformed and has high strength. Hot-rolled plate has relatively low strength, poor surface quality (low oxidation/smoothness), but good plasticity, generally medium-thick plate, cold-rolled sheet: high strength, high hardness, high surface finish, generally thin plate, can be used as stamping With the board. Hot-rolled steel plate, mechanical properties are far less than cold processing, second only to forging, but with good toughness and ductility Cold-rolled steel sheet has a certain degree of work hardening, low toughness, but can achieve a good yield ratio, used for cold-bending spring pieces and other parts, and because the yield point is closer to the tensile strength, there is no danger during use. Predictability, prone to accidents when the load exceeds the allowable load Supplement, cold rolled steel sheet 0.3-3.0mm, hot rolled steel plate 2.0-115mm Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe, Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.

Precision seamless steel pipe is a kind of high-precision steel pipe after cold drawing or hot rolling. Because the precision seamless steel pipe inner and outer wall without oxide layer precision seamless steel pipe, withstand high pressure and no leakage, high precision, high finish, cold bending deformation, flaring, flattening and no cracks, it is mainly used to produce pneumatic or hydraulic components Products such as cylinders or cylinders are made of seamless tubes. The chemical composition of precision seamless steel tubes is carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr. The difference between precision steel pipe and seamless steel pipe 1. The main feature of seamless steel pipe is that it has no welding seam and can withstand greater pressure. The product can be very rough cast or cold dial. 2. Precise steel pipe is a product that has emerged in recent years. It mainly has strict tolerances and roughness on the inner hole and outer wall dimensions. Precision seamless steel pipe features 1. Smaller outside diameter. 2. High precision can be done in small batch production. 3. High-precision cold drawn products, good surface quality. 4. The transverse area of the steel tube is more complicated. 5. The steel pipe has better performance and the metal is denser. The seamless steel pipe knowledge is provided by Shandong Huitong seamless steel pipe manufacturers. Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe, Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.

Alloy seamless steel pipe is a seamless steel pipe, its performance is much higher than the average seamless steel pipe, which contains more Cr inside the steel, its high temperature, low temperature, corrosion-resistant properties of other seamless steel pipe Compared to the alloy pipe in the petroleum, chemical, power, boiler and other industries more widely used. Alloy seamless steel pipe contains elements of silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron, rare earth and so on. Seamless Steel Tube A long section of steel with a hollow section and no seam around. Steel has a hollow section, a large number of pipes used to transport fluids, such as the delivery of oil, natural gas, gas, water and some solid materials such as pipes. Alloy seamless steel pipe material: 12Cr1MoV, P22 (10CrMo910) T91, P91, P9, T9, WB36, Cr5Mo (P5, STFA25, T5) 15CrMo (P11, P12, STFA22), 13CrMo44, Cr5Mo, 15CrMo, 25CrMo, 30CrMo , 40CrMo. Alloy seamless steel pipe national implementation of the standards: DIN17175-79, JISG3467-88, JISG3458-88, GB5310-2008, GB9948-2006, ASTMA335 / A335m, ASTMA213 / A213m. Alloy pipe [(OD - wall thickness) * wall thickness] * 0.02483 = kg / m (weight per meter).Above seamless steel pipe knowledge by Shandong Huitong seamless steel pipe manufacturers. Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Honed Tube, Oil Pipe, Carbon Steel Plate, Ship Building Plate, Wear Resistant Steel Plate and Pressure Vessel Steel Plate, etc.