For the specifications and classification of seamless carbon steel pipes, please find the specificat

Shandong five-finger steel pipe spot**.

Companies that commonly use seamless steel pipe specification tables: Liaocheng Hongjing Trading, Tianjin Tiannan Iron and Steel ******, Shandong Zhaozhi Iron and Steel, Shandong Kunzheng Metal Materials, Qingdao Cui's Plastic Machinery.

Liaocheng Hongjing Business ****:The business scope includes metal materials, stainless steel products, building materials, non-ferrous metals, Wujinjiaodian, electronic products, instrumentation, mechanical accessories, communication equipment and products, fitness equipment, office supplies, stationery and sports supplies, sports equipment, outdoor products, clothing, shoes and hats, dance supplies, leather products, craft gifts, textiles

Tianjin Tiannan Iron & Steel ******:The business scope includes wholesale and retail of metal materials, stainless steel products, electronic products, machinery and equipment, Wujinjiaodian, chemical products (except hazardous chemicals and precursor drugs), and labor protection supplies; Import and export of goods and technology. sales of daily necessities; production, welding and sales of pipe pile tips; and the import and export business of the above products.

Shandong Zhaozhi Iron and Steel ****:The business scope includes sales of steel pipes, steel, plates, stainless steel, building materials, profiles, scrap steel, stamping parts, flanges, mechanical accessories, hardware and electromechanical, and pipe fittings; import of raw and auxiliary materials and technology, wholesale and retail of labor protection supplies; Import and export of goods and technology, self-operated and import and export business of the above business scope and technology.

Shandong Kunzheng Metal Materials****:The business scope includes wholesale and retail of metal materials, pipes, profiles, building materials, plates, stainless steel products, steel pipes, copper, bridge guardrails, metal products, anti-collision guardrails, and labor protection supplies; import and export of goods and technology, wholesale and retail of machinery parts and construction machinery; Self-operated and ** above products and technologies.

Qingdao Cui's Plastic Machinery ****:The business scope includes the manufacture and sales of special equipment for plastic processing, the processing and sales of plastic parts, daily plastic miscellaneous products, plastic plates, plastic pipes, plastic profiles, and the wholesale and retail of labor protection supplies; The import and export of goods and technology is engaged in the export business of the company's own products and technologies and the machinery and equipment and spare parts required by the enterprise.

Seamless steel pipe is a commonly used building material in many industries, which is a round, square and rectangular steel with a hollow section and no joints around the perimeter, which plays a very important role in the construction industry. The common specifications of seamless steel pipes are:

In the design and construction of pressure pipelines, the selection of standard series of pressure pipelines and their components should be considered first. Although there are many standard systems used in countries around the world, they can be roughly divided into two categories. The pressure piping standards are shown in Table 3. Flange standard.

Standard classification of pressure pipeline: large outer diameter series, small outer diameter series, specification DN - nominal diameter, outer diameter DN15- 22mm, DN20- 27mm

dn25-ф34mm，dn32-ф42mmdn40-ф48mm，dn50-ф60mmdn65-ф76(73)mm，dn80-ф89mmdn100-ф114mm，dn125-ф140mmdn150-ф168mm，dn200-ф219mmdn250-ф273mm，dn300-ф324mmdn350-ф360mm，dn400-ф406mmdn450-ф457mm，dn500-ф508mmdn600-ф610mm，dn15-ф18mm，dn20-ф25mmdn25-ф32mm，dn32-ф38mmdn40-ф45mm，dn50-ф57mmdn65-ф73mm，dn80-ф89mmdn100-ф108mm，dn125-ф133mmdn150-ф159mm，dn200-ф219mmdn250-ф273mm，dn300-ф325mmdn350-ф377mm，dn400-ф426mm

The specification table of commonly used seamless steel pipes can be referred to Table 2 and Table 3 in GB T 28708-2012 Seamless and Welded Steel Pipe Size Selection Regulations for Pipeline Engineering

Liaocheng Haitian Steel Pipe Factory has abundant funds, abundant supply and convenient transportation, mainly engaged in more than 600 varieties of structural pipes, thick-walled pipes, fluid tubes, medium and low pressure boiler tubes, boiler tubes, and imported high-pressure alloy pipes produced by various steel mills for you to buy.

Steel Pipe Seamless Steel Pipe Wall thickness.

Specification: 6 8 10 12 14 16 18 *1--3

Generally, seamless steel pipes are made of high-quality carbon-knotted steel, 16Mn, 5Mnv and other low-alloy structural steel, or 40Cr, 30Cr, Mnsi, 45mnb and other bonded steels hot-rolled or cold-rolled.

Seamless pipes made of mild steel are mainly used for fluid transfer pipelines.

Seamless pipes made of medium carbon steel such as CR are used to make mechanical parts, such as stressed parts of automobiles and tractors.

Generally, seamless steel pipes should be used to ensure strength and flattening test. Hot-rolled steel pipes are delivered in hot-rolled or heat-treated condition; Cold rolled is delivered in heat-treated condition.

Summary. Hello dear, the national standard seamless steel pipe specification table is as follows.

Hello dear, the national standard seamless steel pipe specification table is as follows.

Seamless pipes are selected according to the material and size of the elliptical pipes for compression, and generally need to make a grinding tool first, and then put it on the equipment for manufacturing. So what are the specifications of seamless steel pipes?

As the main steel, steel pipes are widely used in our daily life. In the fields of oil and gas transportation, building structure grids, highway bridges, etc., it can be said that steel pipes not only reduce the weight of supports, save building materials, but also make construction easier and easier. Presumably, it is necessary to understand the weight of steel pipes in steel trading and building construction.

Seamless steel pipe size specification table (partial).

Unit: kg m

Wall thickness Outer diameter.

The process of stainless steel seamless pipe determines its limited performance, and the accuracy of general seamless steel pipe is low: the wall thickness is uneven, the brightness of the inner and outer surfaces of the pipe is low, the cost of sizing is high, and there are pitting and black spots on the inner and outer surfaces that are not easy to remove; Its inspection and shaping must be processed offline.

Therefore, it reflects its superiority in terms of high pressure, high strength, and mechanical structure materials. The above is the seamless steel pipe specification table, seamless steel pipe size specification table, and part of the information of each table is only provided for your reference.