Seamless Carbon and Low-Alloy Steel Boiler Tubes
Specifically designed for high-temperature and high-pressure applications, our seamless boiler tubes are precision-manufactured from premium carbon and low-alloy steels using hot-rolled or cold-drawn processes. Widely used in power plant boilers, industrial furnaces, heat exchangers, and petrochemical cracking units, these tubes offer excellent high-temperature strength, oxidation resistance, creep resistance, and processing adaptability, ensuring long-term safety and reliability under extreme operating conditions.
Key Features
Standards:
International: ASTM A106 (Seamless Carbon Steel Pipe for High-Temp Service), ASTM A192 (Seamless Carbon Steel Boiler Tubes), ASTM A213/A213M (Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes).
Domestic: GB/T 5310 (Seamless Steel Tubes for High-Pressure Boilers), GB/T 3087 (Seamless Steel Tubes for Low/Medium Pressure Boilers), GB/T 13973 (Seamless Tubes for Heat Exchangers).
Others: EN 10216-2, DIN 17175 (Seamless Steel Tubes for Heat Exchangers and High-Temp Service).
Materials:
Carbon Steel: 20G, A106 Gr.B, A192, ST45.8/III, GB3087-20.
Low-Alloy Steel: 15CrMoG, 12Cr1MoVG, 13CrMo44, T11, T22, T91, P11, P22, P5, P9, P91 (for supercritical/ultra-supercritical units), 10CrMo910.
Dimensions:
Outer Diameter (OD): 10 mm – 630 mm
Wall Thickness (WT): 2 mm – 80 mm
Length: Fixed (e.g., 6m, 12m) or custom (up to 18m)
Applications:
Waterwall tubes, superheater tubes, reheater tubes, economizer tubes in power plant boilers;
Cracking furnace tubes, reformer tubes in petrochemical plants;
Industrial boilers, heat exchangers, high-temperature headers, and main steam piping systems.
Certifications:
Classification Society Certifications: Approved by ABS, BV, DNV, LR, NK, CCS, RINA – suitable for marine boiler and offshore platform auxiliary boiler systems.
End-User & Engineering Company Approvals: Qualified supplier for SPIC, CNIC, Datang, Huadian, China Energy, GE, Siemens Energy, Alstom, BHEL, Fluor, Technip, Wood Group, and other major power and EPC firms.
Quality System Certifications: ISO 9001, ISO 14001, ISO 45001, ASME SA213/SA106, PED 2010/35/EU (CE Marking), API Q1.
Common Customer Questions (Q&A Format)
Q: Which international and domestic standards do your boiler tubes comply with?
A: Mainly ASTM A213, A335,ASTM A106, GB/T 5310, GB/T 3087, DIN 17175. Custom production to EN or ASME specifications is also available.
Q: Can you supply T91 (10Cr9Mo1VNbN) boiler tubes for supercritical power plants?
A: Yes, we produce T91 tubes in accordance with ASME SA213 T91, suitable for temperatures above 600°C.
Q: What are your minimum and maximum tube sizes?
A: Min OD: 10mm, Max OD: 630mm; Min WT: 2mm, Max WT: 80mm – covering instrumentation lines to main steam piping.
Q: Do you have classification society approvals? Can your tubes be used in marine boilers?
A: Yes, our tubes are approved by ABS, BV, DNV, CCS, etc., and suitable for shipboard main/auxiliary boilers and offshore platforms.
Q: Are you approved by international OEMs like GE or Siemens?
A: Yes, we are listed in the approved supplier databases of GE Vernova and Siemens Energy for boiler tube supply in power projects.
Q: What is the typical lead time? Do you have stock available?
A: Standard lead time: 30–50 days. Common sizes (e.g., Φ45×5 A106 Gr.B, Φ51×6 20G) are in stock and can ship within 7–15 days.
Q: Do you provide NDT reports such as Eddy Current (ET) or Ultrasonic Testing (UT)?
A: Yes, all boiler tubes undergo UT or ET inspection, and third-party reports (SGS, BV, TUV) or customer-designated lab reports are available.
Q: Can you manufacture according to customer drawings or technical specifications?
A: Yes, we support custom production based on drawings, technical agreements, or Material Data Sheets (MDS), including special dimensions, heat treatment (normalizing, normalizing + tempering), and end finishing.
Q: Do you offer internal/external cleaning or protective treatments?
A: Yes, we provide deburring, pickling & passivation, rust preventive oil, and plastic end caps to prevent contamination and corrosion during transit.
Q: Do you have export experience to Europe, Middle East, and Southeast Asia? What is the packaging method?
A: Products exported to Germany, USA, India, UAE, Vietnam, Malaysia, Turkey, etc. Packaging: rust-proof paper, plastic caps, hexagonal bundling or wooden crates – compliant with international shipping standards.
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