Contact Platform Support
Help CenterSteel Pipe & Tube & Alloy Steel Pipe，ASTM A213 T11、T12、T22、ASTM A335 P11、P12、P22、P91
Related Products
-
Steel Pipe & Tube & High‑Pressure Boiler Tube，20G、20MnG、25MnG、15CrMoG、12Cr1MoVG、12Cr2MoGNegotiableMOQ: 5 Metric Tons -
Steel H Beam & H‑Steel，Q235B、Q355B、Q390B、Q420B、Q235NH、Q355NLNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Hot-dip Galvanized Steel Pipe，Q235B、Q345B、S275J0、A36、20#、45#NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Petroleum Pipe，API SPEC 5CT、API SPEC 5L、GB/T 9711、GB/T 19830NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Pipe，20#, 45#, Q345B, E235, E355, ST52, 40Cr, 20CrMnTiNegotiableMOQ: 5 Metric Tons
Alloy Steel Pipe is a high‑end seamless pressure pipe manufactured by adding alloy elements such as chromium, molybdenum and vanadium to carbon steel, followed by hot rolling, cold drawing, finishing and heat treatment. Featuring high temperature resistance, high pressure resistance, creep resistance, corrosion resistance and excellent low‑temperature toughness, Alloy Steel Pipe has dense pipe wall structure, high dimensional accuracy and large pressure safety factor, serving as an indispensable main pipe material for thermal power generation, heat pipeline, chemical refining, high‑pressure equipment and boiler heat exchange fields. Market mainstream types of Alloy Steel Pipe are High‑Pressure Alloy Steel Pipe and Heat‑Resistant Alloy Steel Pipe. Alloy Steel Pipe with different material ratios adapts to differentiated severe working conditions such as high‑temperature and high‑pressure boiler conditions, high‑temperature heat exchange pipelines, low‑temperature pressure delivery, chemical corrosive media and power station main steam pipelines. With complete specifications and full original‑mill quality certificates available,Alloy Steel Pipe supports deep‑processing services such as fixed‑length cutting, beveling, pickling & passivation, precision polishing, quenching & tempering and anti‑corrosion thermal insulation. Featuring stable pressure performance, uniform wall thickness and high safety redundancy with sufficient spot stock, High‑Pressure Alloy Steel Pipe is the most widely used Alloy Steel Pipe in power station engineering and high‑pressure equipment supporting, extensively applied for boiler main steam pipelines, high‑pressure headers, pressure vessel nozzles and chemical high‑pressure delivery pipelines. With excellent high‑temperature oxidation resistance and creep resistance,Heat‑Resistant Alloy Steel Pipe is not easy to deform or crack during long‑term high‑temperature service, mostly used for high‑temperature superheaters, reheaters, heat exchange equipment pipes, high‑temperature process pipelines and metallurgical thermal systems. Conventional outer diameter of Alloy Steel Pipe ranges 6‑820mm, wall thickness 2‑50mm, fixed length 6‑12m with customized non‑standard length available. Main grades include 15CrMoG, 12Cr1MoVG, 35CrMo, 42CrMo, Cr5Mo, with customized foreign‑trade grades such as ASTM A213 T11/T12/T22 and A335 P11/P12/P22 available. Every pipe passes full inspection of hydrostatic test, eddy current testing, ultrasonic flaw detection, mechanical properties and metallographic structure. Alloy Steel Pipe complies with GB/T5310‑2023, GB/T9948‑2025 national standards as well as ASTM A213, ASTM A335, EN10216, JIS G3458 foreign‑trade standards. Power, chemical, thermal and equipment manufacturing enterprises can selectHigh‑Pressure Alloy Steel Pipe and Heat‑Resistant Alloy Steel Pipe according to pressure grade, temperature range and medium characteristics, giving full play to advantages of high temperature & pressure resistance, stable safety and long service life of Alloy Steel Pipe and ensuring long‑term safe operation of various high‑temperature and high‑pressure industrial systems.
1. Material Grade & Model
Domestic Conventional Alloy Steel Pipe Grades: 15CrMoG, 12Cr1MoVG, Cr5Mo, 35CrMo, 42CrMo, 16MnDG
Foreign‑Trade Common Alloy Steel Pipe Grades: ASTM A213 T11, T12, T22, ASTM A335 P11, P12, P22, P91
Main Product Types: High‑Pressure Alloy Steel Pipe, Heat‑Resistant Alloy Steel Pipe, low‑temperature alloy steel pipe, corrosion‑resistant alloy steel pipe, precision alloy steel pipe
High‑Pressure Alloy Steel Pipe: Outer diameter 6‑820mm, wall thickness 2‑50mm, mainly 15CrMoG and 12Cr1MoVG grades, high pressure bearing grade and good sealing performance, suitable for power station high‑pressure boilers, pressure vessels and high‑pressure conveying pipeline systems;
Heat‑Resistant Alloy Steel Pipe: Adaptable to 450℃‑600℃ high‑temperature working conditions with outstanding high‑temperature creep and oxidation resistance, widely used for boiler superheaters, reheaters, high‑temperature heat exchange equipment and metallurgical high‑temperature pipelines; All grades comply with GB/T5310‑2023 and GB/T9948‑2025 national standards and meet ASTM A213, ASTM A335, EN10216, JIS G3458 international standards. Custom services including special caliber, wall thickness, fixed length, precision processing and quenching & tempering are supported, with full‑set original‑mill material reports, flaw detection reports and mechanical property certificates provided.
2. Product Grades and Classification
- High‑Pressure Alloy Steel Pipe: High‑pressure bearing‑grade Alloy Steel Pipe with scientific alloy ratio, uniform wall thickness, strong pressure resistance and good impact resistance, high hydrostatic test pass rate, suitable for high‑pressure closed conveying systems in thermal power and chemical industries;
- Heat‑Resistant Alloy Steel Pipe: High‑temperature weather‑resistant‑grade Alloy Steel Pipe with stable high‑temperature structure, not easy to soften, deform or oxidize and peel, specially adapted to long‑term high‑temperature service working conditions of boilers, heat exchange and thermal pipe networks;
‑ Medium‑temperature heat‑resistantAlloy Steel Pipe: 15CrMo grade with high universality and cost‑performance, applied for medium temperature & pressure thermal pipelines and ordinary heat exchange equipment;
‑ High‑temperature & high‑pressure Alloy Steel Pipe: 12Cr1MoVG grade with excellent comprehensive performance, serving as core special pipe for power station boilers;
‑ Low‑temperature weather‑resistant Alloy Steel Pipe: 16MnDG grade with good low‑temperature toughness, suitable for low‑temperature medium conveying and alpine regional pipe networks;
‑ Precision quenched & tempered Alloy Steel Pipe: 42CrMo/35CrMo grade with high strength and hardness, adapted to mechanical structures and hydraulic precision pipelines;
‑ Compliance Standards: GB national standard, ASTM American standard, EN European standard, JIS Japanese standard, suitable for domestic key power & chemical projects and import‑export foreign‑trade orders.
3. Execution Standards
- GB/T 5310‑2023 Seamless steel tubes for high‑pressure boilers
- GB/T 9948‑2025 Seamless steel tubes for petroleum cracking
- GB/T 6479 High‑pressure seamless steel tubes for chemical fertilizer equipment
- ASTM A213/A213M Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers
- ASTM A335/A335M Seamless ferritic alloy steel pipes for high‑temperature service
- EN 10216 Seamless steel tubes for pressure purposes
- JIS G3458 Alloy steel pipes
- Original mill certificates, hydrostatic test reports, non‑destructive flaw detection reports and mechanical property reports are available, supporting SGS/BV third‑party authoritative inspection & acceptance to meet power engineering, chemical equipment inspection and export requirements.
4. Core Specifications and Parameters
Alloy Steel Pipe‑High‑Pressure Alloy Steel Pipe: Outer diameter 6‑820mm; Wall thickness 2‑50mm; Fixed length 6‑12m; Pressure grade PN16‑PN160; for power station boiler main steam pipelines, high‑pressure headers, pressure vessel nozzles, chemical high‑pressure medium conveying and thermal high‑pressure pipe networks;
Alloy Steel Pipe‑Heat‑Resistant Alloy Steel Pipe: Outer diameter 6‑630mm; Wall thickness 2‑40mm; Fixed length 6‑12m; Temperature resistance range 350℃‑600℃; for boiler superheaters, reheaters, high‑temperature heat exchangers, metallurgical high‑temperature process pipelines and thermal high‑temperature conveying systems; Full‑series Alloy Steel Pipe supports fixed‑length precision cutting, bevel chamfering, pickling & passivation, polishing & rust removal, quenching & tempering heat treatment and anti‑corrosion thermal insulation deep‑processing.High‑Pressure Alloy Steel Pipe has sufficient spot stock, stable pressure bearing and high safety factor, being the most widely used Alloy Steel Pipe in high‑pressure systems of power and chemical industries;Heat‑Resistant Alloy Steel Pipe features stable high‑temperature performance, creep resistance and aging resistance, perfectly adapting to various long‑term high‑temperature industrial working conditions.
5. Classification & Performance Characteristics
- High‑Pressure Alloy Steel Pipe: Uniform and dense metallographic structure without interlayer or crack, small wall thickness tolerance, uniform pressure bearing, strong pressure impact resistance, high hydrostatic and flaw detection pass rate, excellent sealing performance, no leakage or deformation during long‑term high‑pressure operation with extremely high safety and stability;
- Heat‑Resistant Alloy Steel Pipe: Added with high‑temperature resistant alloy elements such as molybdenum and vanadium, stable crystal structure at high temperature, outstanding high‑temperature creep resistance, oxidation resistance and thermal fatigue resistance, not easy to crack or peel under alternating cold and hot conditions, far longer service life than ordinary carbon steel pipes under high‑temperature service;
‑ Corrosion‑resistant Alloy Steel Pipe: High chromium content, resistant to acid and alkali, flue gas corrosion and medium scouring, suitable for chemical, refining and desulfurization corrosive working conditions;
‑ Low‑temperature Alloy Steel Pipe: Excellent low‑temperature toughness, no brittle fracture in low‑temperature environment, applied for low‑temperature medium conveying and alpine regional pipeline engineering;
‑ Precision Alloy Steel Pipe: Smooth internal and external walls, high dimensional accuracy and uniform wall thickness, suitable for precision equipment, hydraulic pipelines and high‑end mechanical structures;
‑ Both High‑Pressure Alloy Steel Pipe and Heat‑Resistant Alloy Steel Pipe support customization of caliber, wall thickness, length and heat treatment process according to engineering drawings, pressure and temperature parameters, meeting non‑standard pipeline supporting requirements of various high‑pressure and high‑temperature industries.
6. Main Applications
Alloy Steel Pipe is a core high‑end pipe material in thermal power generation, chemical refining, thermal heating, metallurgical heavy industry and high‑pressure equipment manufacturing fields, extensively applied for power station boiler main steam pipelines, superheater & reheater tube bundles, high‑pressure headers, pressure vessel nozzles, petrochemical cracking pipelines, chemical fertilizer high‑pressure equipment pipelines, thermal high‑temperature pipe networks, metallurgical high‑temperature process pipelines, low‑temperature medium conveying and precision hydraulic equipment pipelines. High‑Pressure Alloy Steel Pipe is mostly used for high‑pressure closed pressure bearing systems. Featuring stable pressure bearing, qualified flaw detection and reliable safety, it becomes the most commonly used Alloy Steel Pipe in high‑pressure power and chemical engineering. Heat‑Resistant Alloy Steel Pipe is widely adopted for high‑temperature thermal systems. With high temperature resistance, creep resistance and long service life, it serves as the preferred Alloy Steel Pipe for boiler heat exchange, high‑temperature process pipelines and metallurgical thermal projects. Power engineering, chemical equipment, thermal pipe network and heavy industry manufacturing enterprises can select products accurately according to medium pressure, working temperature and corrosive environment. Relying on Alloy Steel Pipe’s stable performance, qualified flaw detection, adaptability to severe working conditions and sufficient batch supply, the operation safety and service life of industrial systems can be greatly improved, and equipment failure & operation & maintenance costs reduced.
7. Packing, MOQ & Lead Time
- Packing: Alloy Steel Pipe adopts pipe orifice plugging protection, pipe body anti‑rust film coating, classified bundling and fixing. Specifications, materials, heat batch numbers and standard numbers are clearly marked on pipe ends, achieving anti‑rust, anti‑collision and anti‑orifice deformation effects, suitable for long‑distance land and sea export transportation;
- MOQ: 3 tons minimum order quantity, mixed ordering of High‑Pressure Alloy Steel Pipe and Heat‑Resistant Alloy Steel Pipe supported, small‑batch sample orders and large‑scale key project bulk procurement acceptable;
- Lead Time: 3‑7 days for regular in‑stock specifications; 7‑15 days for customized special caliber & wall thickness, precision processing and special heat treatment orders. Full‑set material certificates and flaw detection reports are supplied together with goods, supporting third‑party inspection and applicable to FOB, CIF, DAP and other foreign‑trade terms.
8. Product Advantages
Alloy Steel Pipe features precise alloy ratio and dense structure, with excellent high‑temperature resistance, high‑pressure resistance and creep resistance, adapting to various severe industrial working conditions;
2. High‑Pressure Alloy Steel Pipe has high pressure safety factor, high flaw detection pass rate and good sealing performance, meeting safety operation requirements of high‑pressure closed systems;
3. Heat‑Resistant Alloy Steel Pipe owns stable high‑temperature structure, anti‑aging and anti‑peeling properties, no deformation or cracking during long‑term high‑temperature service with long service life;
4. Alloy Steel Pipe undergoes pipe‑by‑pipe flaw detection with traceable materials and complete certificates, fully complying with key project acceptance and foreign‑trade export standards.
Send Inquiry to This Supplier
You May Also Like
-
Steel Pipe & Tube & Casting Pipe，HT200、HT250、QT400、QT500、ZG230-450、ZG270-500NegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Hot Rolled Coil，Q235B，SPHC，SS400，S235JR，A36，SAE1006、SAE1008NegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Cold Rolled Coil，SPCC、DC01、ST12、Q195、Q215、SPCD、SPCE、DC03、DC04、DC05、DC06、ST13、ST14NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Ship Building Plate，AH32、DH32、EH32、FH32，AH36、DH36、EH36、FH36，AH40、DH40、EH40、FH40NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Boiler Plate，EN 10028、ASTM A516、JIS G3115NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Steel Sheet Pile，Q235P、Q355P、Q420P、SY295、SY390NegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip，Hot‑Rolled Steel Coil (HRC): Specifications, Grades, Applications & Export GuideNegotiableMOQ: 5 Metric Tons
-
Steel Rebar，Deformed Steel Rebar: Specifications, Grades, Applications and Export GuideNegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Checkered Plate，ASTM A36, EN 10025‑2, JIS G3101NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Pressure Vessel Plate，SA516 Gr60/Gr70、P265GH、P355GHNegotiableMOQ: 5 Metric Tons
