Contact Platform Support
Help CenterSteel Pipe & Tube & High-Pressure Boiler Tube，20G、15CrMoG、12Cr1MoVG、P91/T91、P92/T92
Related Products
-
Steel Pipe & Tube & OCTG Pipe，H40、J55、K55、N80-1、N80Q、L80-1、C90、T95、C110、P110、Q125NegotiableMOQ: 5 Metric Tons -
Steel Pipe & Tube & Precision Steel Tube，20#/45#、16Mn/Q345B、27SiMn、4130NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Ductile Iron Pipe，K7、K8、K9、K10、K12NegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Hot Rolled Steel Coil，Q235B、SS400、A36、S235JR、SPHC、SPHD、Q355B/C/D、S355JR、S355J0NegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Prepainted Steel Coil，EN 10169、ASTM A755、JIS G3322、GB/T 12755NegotiableMOQ: 5 Metric Tons
1. Product Overview
Core Definition: High-pressure boiler tube is a kind of high-pressure seamless heat-resistant steel tube, serving as the core pressure-bearing material for thermal power, heating power and chemical waste heat boilers. It adopts integral seamless forming, specially designed for extreme working conditions of high temperature, high pressure and strong steam erosion.
Main Products: We supply standardGB5310 high-pressure boiler tube and classic 20G high-pressure boiler tube, as well as low-alloy and chromium-molybdenum heat-resistant boiler tubes, covering all working condition demands of high-temperature and high-pressure boiler equipment.
Working Performance: High-pressure boiler tube operates continuously at 450℃-620℃ and 6-28MPa. It features high lasting strength, excellent oxidation resistance, creep resistance and stable microstructure, effectively avoiding pipe burst and leakage risks.
Product Advantages: Compared with low-pressure boiler tubes, GB5310 high-pressure boiler tube and 20G high-pressure boiler tube adopt higher production standards and stricter inspection, ensuring high safety for industrial high-pressure boilers and power station units.
2. Production Process
Raw Material Control: High-quality special tube billets are selected with strict control of harmful impurities and precise element ratio, ensuring the basic high-temperature pressure resistance and structural stability of high-pressure boiler tube, 20G high-pressure boiler tube and GB5310 high-pressure boiler tube.
Forming Technology: Adopt hot rolling piercing, cold rolling and cold drawing seamless integral forming technology without welding seams, eliminating hidden dangers of cracking and leakage under high temperature and high pressure.
Professional Heat Treatment: All GB5310 high-pressure boiler tube and 20G high-pressure boiler tube undergo normalizing and tempering treatment to refine microstructure, eliminate processing stress and improve high-temperature creep resistance.
Full Inspection Delivery: All finished high-pressure boiler tube pass hydrostatic test, ultrasonic NDT, eddy current inspection, mechanical property and chemical composition re-inspection before delivery.
3. Implementation Standards
Core National Standard: Strictly implement GB/T 5310-2017 seamless steel tube for high-pressure boilers, the core acceptance standard for domestic GB5310 high-pressure boiler tube and20G high-pressure boiler tube projects.
Supporting Standards: GB/T 9948, GB/T 6479 for petrochemical and chemical fertilizer high-temperature pipelines.
Export Standards: ASTM A210, ASTM A106, EN 10216-2, JIS G3458, fully meeting international procurement requirements.
Grade Correspondence: Domestic 20G high-pressure boiler tube is equivalent to ST45.8, STB42, SA106B for global project adaptation.
4. Main Material Grades & Applications
20G Carbon Steel: Cost-effective mainstream material for high-pressure boiler tube, suitable for working conditions below 450℃, widely used in boiler economizers, water wall and low-temperature superheaters.
15CrMoG: Medium-temperature heat-resistant high-pressure boiler tube with excellent oxidation and corrosion resistance, applied in boiler high-temperature superheaters, headers and petrochemical waste heat pipelines.
12Cr1MoVG: High-temperature and high-pressure dedicatedGB5310 high-pressure boiler tube, resistant to 580℃ high temperature, ideal for power station main steam pipelines and high-temperature heating surfaces.
P91/T91, P92/T92: High-end heat-resistant high-pressure boiler tube for ultra-supercritical power units above 620℃, featuring outstanding high-temperature stability and creep resistance.
5. Specification Parameters
Main Products: Full-size spot and customized high-pressure boiler tube, 20G high-pressure boiler tube, GB5310 high-pressure boiler tube.
Outer Diameter: 10mm～426mm, covering small, medium and large caliber specifications.
Wall Thickness: 3.5mm～60mm, including STD, XS, XXS, SCH40/SCH80/SCH160 thick-wall series for enhanced pressure resistance.
Length: 6m / 11.8m / 12m, customized fixed length, cutting and processing available.
Surface Treatment: Hot rolled black, pickled, polished, anti-rust oil coating.
Tolerance: Compliant with GB5310 standard, high dimensional accuracy for precise equipment assembly.
6. Core Product Advantages
High Pressure Safety: Seamless integral structure eliminates weld defects, enabling high-pressure boiler tube to resist long-term high-pressure steam impact without burst or leakage risks.
Stable High-temperature Performance: Professional heat treatment ensuresGB5310 high-pressure boiler tube stable microstructure, anti-deformation and anti-oxidation under continuous high temperature.
Excellent Machinability: 20G high-pressure boiler tube features good plasticity, toughness and weldability, low on-site rework rate and stable construction performance.
Corrosion Resistance & Long Lifespan: Special steel ratio resists high-temperature flue gas and steam corrosion, delaying pipeline aging and reducing maintenance costs.
Traceable Quality: All high-pressure boiler tube, 20G high-pressure boiler tube and GB5310 high-pressure boiler tube are equipped with official mill certificates, NDT reports and SGS third-party inspection documents.
7. Main Application Fields
Power & Heating Industry: Widely used in water walls, economizers, superheaters, headers and main steam pipelines of thermal power and new energy power station boilers, dominated by GB5310 high-pressure boiler tube and 20G high-pressure boiler tube.
Petrochemical Industry: Applied in petrochemical waste heat boilers, hydrogenation units and high-temperature cracking pipelines with corrosion-resistant high-pressure boiler tube.
Coal Chemical & Fertilizer Industry: High-pressure synthesis boilers and waste heat recovery high-temperature and high-pressure pipelines.
General Industrial Field: Large industrial steam boilers, pressure vessel supporting pipelines and thermal pipe network high-pressure transmission pipelines.
8. Supply & Delivery Information
MOQ: Small batch orders acceptable for regular high-pressure boiler tube, 20G high-pressure boiler tube and GB5310 high-pressure boiler tube; customized sizes by tonnage.
Packaging: Export-standard anti-rust and moisture-proof packaging with steel strapping and wooden pallet to prevent collision and corrosion during long-distance transportation.
Trade Terms: EXW, FOB, CFR, CIF available for domestic and foreign one-stop supply.
Documents: Complete mill certificate, NDT report, commodity inspection and customs clearance documents for bidding and export.
9. Delivery Cycle
Stock Delivery: Conventional high-pressure boiler tube, 20G high-pressure boiler tube and GB5310 high-pressure boiler tube are in sufficient stock, delivered within 3-7 working days after payment confirmation for urgent projects.
Customized Delivery: Non-standard size, special wall thickness and fixed-length customized tubes take 10-25 working days for production and delivery.
Urgent Order Service: Priority production for key projects to shorten delivery cycle and guarantee project progress.
Logistics Service: Support domestic land transportation and international sea, air and railway transportation with full-process tracking for safe and on-time delivery.
10. Quality Inspection Items
All delivered high-pressure boiler tube, 20G high-pressure boiler tube and GB5310 high-pressure boiler tube pass full strict inspections:
Chemical composition analysis, tensile test, impact test, hardness test
Hydrostatic pressure test, UT ultrasonic test, ET eddy current test, metallographic inspection and dimensional recheck
Send Inquiry to This Supplier
You May Also Like
-
Steel Sheet & Plate & Checkered Steel Plate，Q235B、SS400、A36、S235JR、Q355B、S355JR、Grade 50NegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Cold Rolled Steel Coil，SPCC / Q195、SPCD / Q215、SPCE / Q235、DC01/DC03/DC05/DC06NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Ship Plate，AH36/DH36/EH36、FH36/FH40、AH690/FH690NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Boiler Steel Plate，Q245R、Q345R、Q370R、P265GH、P355GH、16Mo3、13CrMo4-5、SA387 Gr11/Gr22NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Pressure Vessel Steel Plate，Q245R、Q345R、Q370R、16Mo3、13CrMo4-5、SA387 Gr11、SA387 Gr22NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Steel Sheet Pile，Q235B、Q355B、SY295、SY390、Q295WP、Q355WPNegotiableMOQ: 5 Metric Tons
-
Steel Rebar & Deformed Steel Bar，ASTM A615 Gr40 / Gr60、BS4449 B500BNegotiableMOQ: 5 Metric Tons
-
Flat Steel & Flat Bar，Q235B、Q195、SS400、A36、S235JR、Q355B、S355JR、20#、45#NegotiableMOQ: 5 Metric Tons
-
Steel Wire & Galvanized Steel Wire，Q195、Q235、45#、55#、60#、65#NegotiableMOQ: 5 Metric Tons
-
Steel Angle & Angle Bar，Q235B、SS400、A36、S235JR、Q355B、S355JRNegotiableMOQ: 5 Metric Tons
