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Help CenterSteel Pipe & Tube & High‑Pressure Boiler Tube，20G、20MnG、25MnG、15CrMoG、12Cr1MoVG、12Cr2MoG
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High‑Pressure Boiler Tube is a special seamless steel tube specially used for heating surfaces of high‑pressure and ultra‑high‑pressure boilers. Manufactured from high‑quality carbon steel and heat‑resistant alloy steel billets through hot rolling, cold drawing, normalizing and tempering heat treatment, High‑Pressure Boiler Tube features excellent high‑temperature resistance, high‑pressure resistance, creep resistance, oxidation resistance and thermal‑fatigue performance. It boasts high steel purity, stable metallographic structure, uniform wall thickness and high dimensional accuracy, serving as an indispensable pressure‑bearing tube for thermal‑power station boilers, thermal‑power generation equipment and high‑temperature heat‑exchange devices. Market mainstream types of High‑Pressure Boiler Tube are 20G High‑Pressure Boiler Tube and 12Cr1MoVG High‑Pressure Boiler Tube. High‑Pressure Boiler Tube of different material ratios adapts to differentiated high‑temperature & high‑pressure working conditions such as boiler economizer, superheater, reheater, header and main steam pipeline. With complete specifications and full original‑mill quality certificates available, High‑Pressure Boiler Tube supports deep‑processing services such as fixed‑length cutting, beveling, pickling, polishing, quenching & tempering and anti‑corrosion treatment. As carbon‑grade high‑pressure boiler tube with stable high‑temperature strength, good welding performance and high cost‑performance and sufficient spot stock, 20G High‑Pressure Boiler Tube is the most widely‑used High‑Pressure Boiler Tube for ordinary high‑pressure boiler supporting, extensively applied for economizers, water‑wall tubes and ordinary superheater tube bundles. As alloy heat‑resistant High‑Pressure Boiler Tube, 12Cr1MoVG High‑Pressure Boiler Tube delivers outstanding creep‑resistance and high‑temperature rupture strength, not easy to bulge or crack under long‑term high‑temperature & high‑pressure service, mostly used for high‑temperature superheaters, reheaters, boiler headers and core pipelines of sub‑critical and super‑critical power‑station boilers. Conventional outer diameter of High‑Pressure Boiler Tube ranges 10‑426mm, wall thickness 2‑40mm, fixed length 6‑12m with customized non‑standard length available. Main grades include 20G, 20MnG, 15CrMoG, 12Cr1MoVG, with customized foreign‑trade grades such as SA‑210C, SA‑213 T11/T12/T22, SA‑335 P11/P22 available. Every tube passes full inspection of hydrostatic test, ultrasonic flaw detection, eddy‑current testing, mechanical properties and metallographic structure. High‑Pressure Boiler Tube complies with GB/T5310‑2023 national standard as well as ASTM SA‑210, SA‑213, SA‑335, EN10216 foreign‑trade standards. Thermal‑power and boiler‑manufacturing enterprises can select 20G High‑Pressure Boiler Tube and12Cr1MoVG High‑Pressure Boiler Tube according to working temperature and pressure grade, giving full play to advantages of high‑temperature & high‑pressure resistance, stable structure and reliable safety ofHigh‑Pressure Boiler Tube and ensuring long‑term stable and safe operation of complete power‑station boiler systems.
1. Material Grade & Model
Domestic Conventional High‑Pressure Boiler Tube Grades: 20G, 20MnG, 25MnG, 15CrMoG, 12Cr1MoVG, 12Cr2MoG
Foreign‑Trade Common High‑Pressure Boiler Tube Grades: SA‑210C, SA‑213 T11, T12, T22, SA‑335 P11, P12, P22, P91
Main Product Types: 20G High‑Pressure Boiler Tube, 12Cr1MoVG High‑Pressure Boiler Tube, Mn‑series high‑pressure boiler tube, high‑alloy high‑pressure boiler tube
20G High‑Pressure Boiler Tube: Outer diameter 10‑426mm, wall thickness 2‑40mm, high‑quality carbon boiler steel with good welding & bending performance, suitable for boiler water‑wall tubes, economizers and medium‑temperature superheater tube bundles;
12Cr1MoVG High‑Pressure Boiler Tube: Cr‑Mo‑V alloy grade, adaptable to 480℃‑580℃ high‑temperature & high‑pressure working conditions with excellent high‑temperature creep‑rupture strength, widely used for high‑temperature superheaters, reheaters, boiler headers and power‑station main‑steam pipelines; All grades comply with GB/T5310‑2023 national standard and meet ASTM SA‑210, SA‑213, SA‑335, EN10216 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
- 20G High‑Pressure Boiler Tube: Carbon pressure‑bearing‑grade High‑Pressure Boiler Tube with high molten‑steel purity and strict control over non‑metallic inclusions, good welding & bending performance and stable medium‑temperature pressure‑bearing capacity, suitable for heating‑surface components of ordinary high‑pressure boilers;
- 12Cr1MoVG High‑Pressure Boiler Tube: Alloy heat‑resistant‑grade High‑Pressure Boiler Tube added with Cr‑Mo‑V alloy elements, stable high‑temperature metallographic structure and outstanding creep‑resistance & thermal‑fatigue‑resistance, specially adapted to high‑temperature & high‑pressure service conditions of sub‑critical and super‑critical power‑station boilers;
‑ Mn‑series High‑Pressure Boiler Tube: 20MnG / 25MnG for improved high‑temperature strength, applied for heating surfaces of medium‑and‑high‑pressure boilers;
‑ Medium‑alloy High‑Pressure Boiler Tube:15CrMoG with high universality and cost‑performance, applied for boiler heat‑exchange pipelines with moderate temperature and pressure;
‑ High‑alloy High‑Pressure Boiler Tube: T91/P91 with ultra‑high temperature & pressure resistance, used for core components of ultra‑super‑critical boilers;
‑ Compliance Standards: GB national standard, ASTM American standard, EN European standard, suitable for domestic key thermal‑power projects and import‑export foreign‑trade orders.
3. Execution Standards
- GB/T 5310‑2023 Seamless steel tubes for high‑pressure boilers
- ASTM SA‑210/SA‑210M Seamless carbon steel boiler and superheater tubes
- ASTM SA‑213/SA‑213M Seamless ferritic alloy‑steel boiler, superheater and heat‑exchanger tubes
- ASTM SA‑335/SA‑335M Seamless ferritic alloy‑steel pipes for high‑temperature service
- EN 10216‑2 Seamless steel tubes for pressure purposes with specified elevated‑temperature properties
- Original‑mill certificates, hydrostatic‑test reports, non‑destructive flaw‑detection reports, mechanical‑property and metallographic reports are available, supporting SGS/BV third‑party authoritative inspection & acceptance to meet thermal‑power boiler‑project inspection and export requirements.
4. Core Specifications and Parameters
High‑Pressure Boiler Tube‑20G High‑Pressure Boiler Tube: Outer diameter 10‑426mm; Wall thickness 2‑40mm; Fixed length 6‑12m; Max working temperature ≤480℃; for boiler water‑wall tubes, economizers, medium‑temperature superheaters and ordinary header components;
High‑Pressure Boiler Tube‑12Cr1MoVG High‑Pressure Boiler Tube: Outer diameter 10‑426mm; Wall thickness 2‑40mm; Fixed length 6‑12m; Temperature‑resistance range 480℃‑580℃; for high‑temperature superheaters, reheaters, boiler headers and power‑station main‑steam pipelines; Full‑series High‑Pressure Boiler Tube supports fixed‑length precision cutting, bevel chamfering, pickling & rust removal, polishing, quenching & tempering heat treatment and anti‑corrosion deep‑processing.20G High‑Pressure Boiler Tube has sufficient spot stock, convenient welding & processing and outstanding comprehensive cost‑performance, being the most widely‑used High‑Pressure Boiler Tube for ordinary high‑pressure boiler projects;12Cr1MoVG High‑Pressure Boiler Tube features excellent high‑temperature rupture strength, creep‑resistance and thermal‑fatigue‑resistance, perfectly adapting to severe high‑temperature & high‑pressure working conditions of power‑station boilers.
5. Classification & Performance Characteristics
- 20G High‑Pressure Boiler Tube: Special boiler‑grade high‑quality carbon steel with strict control over harmful impurities, uniform metallographic structure and small wall‑thickness tolerance, high hydrostatic‑test & flaw‑detection pass rate, excellent bending & welding performance and stable medium‑temperature pressure‑bearing capacity, suitable for heating‑surface components of ordinary high‑pressure boilers;
- 12Cr1MoVG High‑Pressure Boiler Tube: Cr‑Mo‑V alloy system with high creep‑rupture strength under high temperature, outstanding oxidation‑resistance and thermal‑fatigue‑resistance, not easy to generate cracks under alternating cold‑hot cycles, hard to bulge or burst under long‑term high‑temperature & high‑pressure operation, serving as core heat‑resistant tube for power‑station boilers;
‑ Mn‑series High‑Pressure Boiler Tube: Matrix strengthened by manganese element for improved high‑temperature tensile strength, suitable for heat‑exchange tube bundles of medium‑and‑high‑pressure boilers;
‑ High‑alloy High‑Pressure Boiler Tube: High‑Cr‑Mo material for further upgraded temperature‑resistance grade, adapted to super‑critical and ultra‑super‑critical large‑scale generating units;
‑ Both 20G High‑Pressure Boiler Tube and 12Cr1MoVG High‑Pressure Boiler Tube support customization of caliber, wall thickness, length and heat‑treatment delivery status according to boiler drawings, temperature & pressure parameters, meeting non‑standard pressure‑bearing pipeline supporting requirements of various thermal‑power boilers.
6. Main Applications
High‑Pressure Boiler Tube is a core special pressure‑bearing tube in thermal‑power generation, power‑station boiler and thermal‑equipment‑manufacturing fields, extensively applied for boiler water‑wall tubes, economizer tube bundles, superheater tube bundles, reheater tube bundles, boiler headers, main‑steam pipelines, high‑temperature heat‑exchange equipment and auxiliary high‑temperature & high‑pressure pipelines of power stations. 20G High‑Pressure Boiler Tube is mostly used for medium‑temperature high‑pressure heating‑surface components. Featuring good welding performance, stable supply and high cost‑performance, it becomes the most commonly used High‑Pressure Boiler Tube in ordinary high‑pressure boiler projects. 12Cr1MoVG High‑Pressure Boiler Tube is widely adopted for core high‑temperature & high‑pressure heating surfaces. With creep‑resistance and high‑temperature rupture strength, it serves as the preferred High‑Pressure Boiler Tube for sub‑critical and super‑critical power‑station‑boiler projects. Boiler‑equipment factories, thermal‑power‑engineering and thermal‑equipment‑manufacturing enterprises can select products accurately according to medium temperature and working pressure. Relying on High‑Pressure Boiler Tube’s high purity, qualified flaw‑detection, adaptability to severe high‑temperature & high‑pressure working conditions and sufficient batch supply, the operation safety of boiler equipment can be guaranteed, service life prolonged and maintenance‑failure risks reduced.
7. Packing, MOQ & Lead Time
- Packing: High‑Pressure Boiler Tube adopts pipe‑orifice plugging protection, pipe‑body anti‑rust film coating, classified bundling and fixing. Specifications, materials, heat‑batch numbers and execution standards are clearly marked on pipe ends, achieving anti‑rust, anti‑collision and pipe‑orifice‑deformation‑proof effects, suitable for long‑distance land and sea export transportation;
- MOQ: 3 tons minimum order quantity, mixed ordering of 20G High‑Pressure Boiler Tube and 12Cr1MoVG High‑Pressure Boiler Tube supported, small‑batch sample orders and large‑scale thermal‑power‑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
High‑Pressure Boiler Tube features high billet purity with strict control over harmful impurities. Metallographic structure is optimized by special heat‑treatment, delivering excellent high‑temperature resistance, high‑pressure resistance and creep‑resistance, adapting to severe high‑temperature & high‑pressure working conditions of boilers;
2. 20G High‑Pressure Boiler Tube has good welding & bending‑processing performance, high flaw‑detection pass rate and outstanding cost‑performance, meeting safety‑operation requirements for heating surfaces of ordinary high‑pressure boilers;
3. 12Cr1MoVG High‑Pressure Boiler Tube adopts scientific alloy ratio with high high‑temperature rupture strength, thermal‑fatigue‑resistance and oxidation‑resistance, not easy to bulge or crack under long‑term high‑temperature service for long service life of power‑station boilers;
4. High‑Pressure Boiler Tube undergoes tube‑by‑tube flaw‑detection inspection with traceable materials and complete certificates, fully complying with key thermal‑power‑project acceptance and foreign‑trade export standards.
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