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- home > Supply > Supply "Q345B welding steel pipe | | Tianjin [the Q345B large diameter welded steel pipe]? ? [Spot]
Information Name: | Supply "Q345B welding steel pipe | | Tianjin [the Q345B large diameter welded steel pipe]? ? [Spot] |
Published: | 2011-11-19 |
Validity: | 1000 |
Specifications: | Complete |
Quantity: | 1.00 |
Price Description: | |
Detailed Product Description: | Hing Tung Albert, Tianjin Steel Pipe Sales Co., Ltd. [Tel :022 -58,266,858] existing cold rolling mill six sets, seamless pipe perforation unit production lines, cold drawing production lines, hot-rolled production line, annual production of outer diameter of 6 - 630mm wall thickness 0.5 --- 50mm variety of materials, specifications. Classification according to production method (1) seamless steel tube manufacturing process can be divided into: hot rolled (extrusion), cold-rolled (drawn), thermal expansion pipe basic categories. (2) pipe in accordance with the manufacturing process can be divided into: straight seam welded steel pipe, submerged arc welding steel pipe, the coils butt welded steel pipe, welded pipe thermal expansion pipe. In accordance with the shape of the steel pipe can be divided into a square tube, rectangular tube, octagonal, hexagonal, D-shaped, pentagonal shaped steel tubing. Steel tube to withstand the fluid and gas pressure should be carried out to test its pressure to bear and steel inherent quality of the hydraulic test and ray detection (2 steel mechanical properties are important indicators to ensure that the steel end-use properties (mechanical properties), it depends on the steel chemical composition and heat treatment system. steel standards, according to different requirements, the provisions of the tensile properties (tensile strength, yield strength or yield point, elongation) and hardness, toughness, as well as user requirements, low temperature performance.) complex cross-section pipe - equilateral hexagonal steel pipe, five plum blossom-shaped steel tube, double-convex steel pipe, double concave steel, oval-shaped pipe, conical steel pipe, corrugated steel pipe, case steel pipe, other 4, use classification - pipeline with steel pipes, thermal equipment with steel pipes, machinery for industrial use with steel pipe steel pipe, petroleum and geological drilling, container steel, chemical industrial pipe, special-purpose steel pipe, the other four. chemical composition test (1) GB3087-82 "low and medium pressure boiler seamless steel pipe provided. The chemical composition of test methods according to GB222-84 and GB223 "steel and alloy chemical analysis of the relevant part of the method". (2) GB5310-95 "high-pressure boiler seamless steel tubes provided. The relevant part of the chemical composition of test methods according to GB222-84 steel and alloy chemical analysis method, GB223, steel and alloy chemical analysis method ". (3) imports of the chemical composition of the boiler tube inspection and the relevant standards specified in the contract at present, the world production of steel pipes, a total of over 1850 companies in over 110 countries, more than 5100 plant, including production of oil tube 44 more than 170 countries under more than 260 plants. 2000, the seamless steel tubes of apparent consumption of 4.18 million tons, of which the domestic supply of 3.821 million tons, accounting for 91.4% of the total domestic demand. Imported 35.9 million tons, accounting for 8.59% of the total domestic demand. The same year the oil pipe consumption of approximately 910,000 tons. Import about 252,000 tons. Pipe imports accounted for about 70% of the total domestic consumption, which imports accounted for 27.69% of the total domestic consumption of oil pipe imports accounting for about 70% of the seamless steel pipe imports. More than half of the total imports of oil pipe imported from Japan. China's largest production base of the casing - steel pipe products of Tianjin Steel Tube Company in 2000 out of 522,000 tons, of which oil casing production was 364,100 tons. Casing accounted for more than half of the national oil production. China casing market on the production and sales. From both international and domestic market point of view, the existing production capacity of seamless steel pipe (OCTG) were greater than demand. Therefore, the future focus should be placed on the ability to give full play to existing units, the development of high-strength grade, high to fight to destroy, high resistance to corrosion of oil pipes, high-pressure boiler tubes and the cylinder tube and other products. Countries for China's steel market to optimize the product structure. This is also the increase in the domestic and international competitiveness of their products, the key to expanding market share. That is, to improve the market competitiveness of the domestic steel pipe enterprises are the long-term task and the key to successful development of the domestic enterprises after plus and WTO. [Edit] Second, the welded steel pipe standard welded steel pipe, said pipe is made of steel pipe welded plate or strip after curl forming. Welded steel pipe production process is simple, high production efficiency, and many varieties of different specifications, equipment owned, but the general strength is less than seamless steel pipe. Since the 1930s, with the progress of the rapid development of quality steel rolling production, welding and inspection techniques, weld quality improved, increasing number of varieties and specifications of welded steel pipe, and more and more areas instead of pipe joints. Welded steel pipe according to the form of a weld is divided into a straight seam welded pipe and spiral welded pipe. Longitudinal production process is simple, high efficiency, low cost, rapid development. The strength of the spiral welded pipe is generally higher than the Longitudinal, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different diameters of pipe. However, compared with the same length of straight seam pipe, the weld length increased by 30 to 100%, and lower production rate. Therefore, smaller diameter pipe mostly straight seam welded pipe of large diameter are mostly spiral welded. .7. Low pressure fluid conveying spiral submerged arc welded steel pipe (SY5037-83) is a hot-rolled steel strip coils of the tube, often warm spiral shape, using double-sided automatic submerged arc welding or single-sided welding into the legal system for the The low pressure fluid such as water, gas, air and steam SAW pipe. The low pressure liquid delivery pipe with welded steel pipe (GB/T3092-1993), also known as general, commonly known as the clarinet. Used for conveying water, gas, air, oil and heating steam low pressure fluid, and for other purposes welded steel pipe. The steel pipe connected to the wall thickness is divided into ordinary steel and thicker steel; take over the side into the form without the steel pipe (fluorescent tubes) and with a steel pipe. Specifications of the tubes with nominal diameter (mm) said that the nominal diameter is the diameter of the approximation. The habit usually expressed in inches, such as 11/2 and so on. The low pressure fluid welded steel unless used directly in the transmission fluid, but also a large number used as a low pressure fluid of the original tube of galvanized welded steel pipe. A low pressure fluid galvanized welded steel pipes (GB/T3091-1993), also known as galvanized welded steel pipe, commonly known as the white tube. Is used for conveying water, gas, air, oil and heating steam, heated and other general low pressure fluid or other uses hot-dip galvanized steel pipe welding (furnace welding or welding). Steel pipe connected to the wall thickness is divided into ordinary galvanized steel and thicker galvanized steel; take over the side into the form of threaded galvanized steel pipe and threaded galvanized steel pipe. Specifications of the tubes with nominal diameter (mm) said that the nominal diameter is the diameter of the approximation. The habit usually expressed in inches, such as 11/2 and so on. Ordinary carbon steel wire casing (GB3640-88) is used to protect the wire and the steel pipe in the industrial and civil buildings, the installation of machinery and equipment, electrical installation works. 3 straight seam welded steel pipe (YB242-63) is parallel to the longitudinal weld and steel pipe steel pipe. Usually divided into metric welded steel pipe, welding thin-walled tube, transformer cooling tubing. Pressure fluid conveying tube with spiral submerged arc welded steel pipe (SY5036-83) is a hot-rolled steel strip coils, often warm spiral shape double submerged arc welding for pressure fluid transmission spiral pipe joints. Steel bearing ability, good welding performance, a variety of rigorous scientific examination and testing, the use of safe and reliable. Steel pipe caliber, transmission efficiency, and can save the laying of pipeline investments. Mainly used for transporting oil, natural gas pipeline. Pressure fluid conveying high-frequency welded steel pipes with spiral (SY5038-83) tube is hot-rolled steel strip coils, often warm spiral shape, welded by high frequency lap welding method for pressurized fluid transport spiral high-frequency welded steel pipe. Bearing capacity of steel pipe, plastic welding and machining molding; a variety of strict and scientific inspection and testing, the use of safe and reliable, large diameter steel pipe, transmission efficiency, and save the laying of the pipeline investment. Mainly used for laying the pipeline transport oil and natural gas. Low pressure fluid conveying high frequency welded steel pipes with spiral seam (SY5039-83) is a hot-rolled steel strip coils for tube, often warm spiral shape using the method of high-frequency overlap welding welding for general low pressure fluid with spiral high-frequency welded steel pipe. 8. Pile for the tube, spiral welded steel pipe (SY5040-83) is a hot-rolled steel strip coils, often warm spiral shape, made of double-sided submerged arc welding or high frequency welding for the civil construction structures, docks, bridges, etc. The foundation piles with steel pipes. Sales Tel 022 -58266858 / 58266859 Mobile: 13820368989/13512018177 Fax :022-8686773 Web site: http://www.tjjtbh666.com Address: Beichen District, Tianjin Tian Yang Apartment 4, Building 1, 140 Contact: Renqing Fu Yan Haizhen |
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Copyright © GuangDong ICP No. 10089450, Tianjin Steel Pipe Sales Co., Ltd. Wai Yip Hing Tung All rights reserved.
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You are the 72982 visitor
Copyright © GuangDong ICP No. 10089450, Tianjin Steel Pipe Sales Co., Ltd. Wai Yip Hing Tung All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility