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Alloy steel pipes stock

Alloy steel pipe is a kind of seamless steel pipe, its performance is much higher than the general seamless steel pipe, because this steel pipe inside containing Cr, high temperature resistance, low temperature, corrosion-resistant performance of other non-pipe joints not match, so the more extensive use of alloy tube in the petroleum, aerospace, chemical, electric power, boiler, military, and other industries.

The main use of alloy steel pipe used in power plants, nuclear power, high-pressure boiler, high temperature superheater and re-heater high pressure and high temperature piping and equipment, it is made ​​of high quality carbon steel, alloy structural steel and heat-resistant stainless steel material, hot-rolled (extrusion, expansion) or cold-rolled (pull) made​​.

Backed by a team of professionals and sound production unit, we have been able to provide our clients with an impeccable Alloy Steel Seamless Boiler Pipe.

Our globally recognized inventory is complete with:

Alloy pipes specification and Size

Alloy steel is a series of alloy which its main content is steel. To add different metal elements with different ratios in steel can change the mechanical properties of alloy steel.

ASTM/ ASME

American Society for Testing and Materials(ASTM), American Society of Mechanical Engineers (ASME)

DescriptionStandardDimension
(mm)		Steel code/ Steel grade
Carbon and alloy steel mechanical tubing, either hot-finished or cold-finishedASTM A51920-180 x 2-30A1, C
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger TubesASTM A213 0910.3-426 x 1.0-36T5, T5b, T9 , T11, T22 ,T91
Seamless Carbon and Alloy Steel for Mechanical TubingASTM A3331/4"-42" x SCH20-XXSGrade1 Gr. 3,Gr..6, Gr.8 , Gr. 9
Seamless ferritic alloy-steel pipe for high-temperature serviceASTM 335/335M1/4"-42" x SCH20-XXSP5, P9 ,P11, P91, P22, P92
DIN/EN- European Standards for steel

Germany Safety(GS), Deutsches Institut für Normung(DIN)

Product nameExecutive standardDimension (mm)Steel code/ Steel grade
Seamless Steel Tubes for Elevated TemperatureDIN 1717510-762 x 1.0-120St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36
Seamless steel tubes for pressure purposesEN102164.0-60.0 x 0.5-8
5-7 m manufacturing lenght		P235GH TC1, P235GH TC2, 16Mo3
Seamless precision steel tube applicationsEN 10305-113.5-165.1 x 1.8-4.85St33.2
Seamless Precision Steel TubeDIN 23914.0-60.0 x 0.5-8St35, St45, St52
JIS

Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan.

Product nameExecutive standardDimension (mm)Steel code/ Steel grade
Carbon steel/Alloy steel boiler and heat exchanger tubesJIS G3461,219.05-114.3 x 2.0-14G3461(STB340, STB410, STB510)
G3462(STBA22, STBA23)
Heat resistant alloy steel pipes that are used for high temperature conveying fluid pipes for heaters and boiler tubes.JIS G345810.5-660.4 mmSTPA 12, STPA 20, STPA 22, STPA 23, STPA 24, STPA 25, STPA 26

The Advantages Of Alloy Steel Pipe

The alloy steel pipe adopts high quality carbon steel, alloy structural steel and stainless & heat resisting steel as raw material through hot rolling or cold drawn to be made.

The main applications of alloy steel pipe is power station, nuclear power plant, high pressure boiler, high temperature superheater and re-heater coil etc. of high temperature pipeline and equipments.

The advantages of alloy steel pipe: 100% recycled, it is suitable for the national strategy of environmental protection, energy-saving and resource-saving. Therefore, the national policy encourages the expansion of the high pressure alloy steel pipe applications.

At present, the proportion of the total alloy steel tube is half of the developed countries. The applications of alloy steel pipe provide a broad space for the industry development. According to the research of the China association of special steel alloy pipe expert group, our country’s high pressure alloy steel pipe material demand grows by an average of up to 10-12%.

Developed with advance technology, these products are in compliance with the defined parameters of the industry. These offered alloy pipes are available with us in divergent sizes and specifications meeting divergent demands of the clients.

Further, information regarding offered pipes are is given below:

Description: alloy steel pipe, alloy seamless steel pipe, alloy welded pipe,seamless alloy steel pipe,alloy pipe,alloy steel tube

  • Outside Diameter: 6 mm-1080mm
  • Wall tihckness: 1mm-60mm
  • Length: 5.8m,6m,11.8m,12m or as your requirement


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Duplex stainless steel round bar is downstream processed to seamless pipe, fitting, flange, shaft, pump valve, member bar and so on, the final products are widely used in LNG liquefied natural gas, chemicals, ocean industry, petrochemical engineering and some high-end industries. 022Cr22Ni5Mo3N duplex stainless steel is a kind of ferrite to austenite stainless steel, belong to the second generation of duplex stainless steel in the alloy. In the early 1980 s, our country began to develop and 022Cr22Ni5Mo3N  duplex stainless steel is 00 cr22ni5mo3n duplex stainless steel, the microstructure of ferrite and austenite F A each account for about 50%. It combines ferrite and austenite is the most useful performance: ferrite phase steel has high strength and resistance to chloride stress corrosion performance, austenitic phase steel has good toughness and corrosion resistance. S31803, therefore, has the very good resistance to chloride stress corrosion cracking, are better than ferritic st...
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