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 applications of alloy steel pipes is power station, nuclear power plant, high pressure boiler, high temperature superheater and re-heater coil etc. of high temperature pipeline and equipments.
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
How do I choose which alloy steel to use?
Selecting the right alloy for a specific application is vitally important in order to achieve a sustainable solution, while cost aspects must also be taken into consideration. There are several stages when material selection needs to be made: new applications and equipment, new processes and process changes, exchange of material due to poor performance, exchange of existing material to minimize cost.
To make the right material selection it is important to get a full picture of the service conditions the steel will face. The first aspects to consider could be material related, for example: corrosion resistance, mechanical strength, fabric ability, fhysical properties, surface aspects.
Note: This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.
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)
| Description | Standard | Dimension (mm) | Steel code/ Steel grade |
|---|---|---|---|
| Carbon and alloy steel mechanical tubing, either hot-finished or cold-finished | ASTM A519 | 20-180 x 2-30 | A1, C |
| Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes | ASTM A213 09 | 10.3-426 x 1.0-36 | T5, T5b, T9 , T11, T22 ,T91 |
| Seamless Carbon and Alloy Steel for Mechanical Tubing | ASTM A333 | 1/4"-42" x SCH20-XXS | Grade1 Gr. 3,Gr..6, Gr.8 , Gr. 9 |
| Seamless ferritic alloy-steel pipe for high-temperature service | ASTM 335/335M | 1/4"-42" x SCH20-XXS | P5, P9 ,P11, P91, P22, P92 |
DIN/EN- European Standards for steel
Germany Safety(GS), Deutsches Institut für Normung(DIN)
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
|---|---|---|---|
| Seamless Steel Tubes for Elevated Temperature | DIN 17175 | 10-762 x 1.0-120 | St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36 |
| Seamless steel tubes for pressure purposes | EN10216 | 4.0-60.0 x 0.5-8 5-7 m manufacturing lenght | P235GH TC1, P235GH TC2, 16Mo3 |
| Seamless precision steel tube applications | EN 10305-1 | 13.5-165.1 x 1.8-4.85 | St33.2 |
| Seamless Precision Steel Tube | DIN 2391 | 4.0-60.0 x 0.5-8 | St35, St45, St52 |
JIS
Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan.
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
| Carbon steel/Alloy steel boiler and heat exchanger tubes | JIS G3461,2 | 19.05-114.3 x 2.0-14 | G3461(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 G3458 | 10.5-660.4 mm | STPA 12, STPA 20, STPA 22, STPA 23, STPA 24, STPA 25, STPA 26 |
Size measurement and PMI test
The range of 15CrMoG pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.
Measure out diameter
Measure wall thickness
Measure length
PMI test
PMI test done
Measure wall thickness
PMI test done
Proected by End caps
Packing and Marking
- Packed in bundles, wrapped in plastic, and suitably protected for sea-worthy delivery or as requested.
- Marking should according to MIL-STD-129 for Military agencies and in accordance with Fed. Std. No.123 for civil agencies including not limited: Standard, graded, size, heat no. lot no.
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.
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