Seamless Boiler Tube
seamless boiler tubes engineered for critical thermal power stations, high-pressure industrial boiler steam loops, refinery heat exchangers, and waste heat recovery systems. We guarantee exceptional creep rupture strength, exact wall thickness concentricity, and strict mechanical stress tolerances under our direct [2-Hour Rapid Quote] mill program.
Tired of slow supplier responses while your critical project bidding deadline closes in? Terrified of receiving sub-standard pressure tubes that split during expansion or fail on-site hydrostatic testing logs, risking major inspection failures? Eliminate cross-border purchasing risks and secure your mill-verified testing logs immediately.
PRODUCT DETAILS
Seamless Boiler Tube Three-Standard Cross Matrix
| American Boiler Standard (ASTM) | European Boiler Standard (EN 10216-2) | Japanese Boiler Standard (JIS) | Hydrostatic Pressure Range | Core Thermal Limits |
|---|---|---|---|---|
| ASTM A192 Standard Carbon | EN 10216-2 P235GH | JIS G3461 STB340 | ≤ 10 MPa (Standard Duty) | Up to 425°C Heat Run |
| ASTM A210 Grade A-1 / C | EN 10216-2 P265GH / 20MnV6 | JIS G3461 STB410 / STB510 | 10 MPa – 32 MPa (High-Pressure) | Up to 450°C – 500°C Super-Heat |
| ASTM A213 Alloy Boiler (T11/T22) | EN 10216-2 13CrMo4-5 | JIS G3462 STBA22 | Supercritical Thresholds | Extreme Run Up to 550°C+ |
Technical QA/QC Verification
• Unaltered Material MTC Logs: Shipments are delivered alongside authentic EN 10204 3.1 Mill Test Certificates. All technical parameters are traceable to heat casts, showing precise chemical boundaries, cold flattening performance, elongation ratios, and hardness limits. Fully certified for inspection by SGS, TÜV, or Bureau Veritas.
• Capital Security Guarantee: We eliminate cross-border financial risks for industrial plant and utility infrastructure accounts by accepting large-scale material allocations under 100% Irrevocable Letters of Credit (L/C) at sight financial frameworks.
Internal Protection & Ocean Logistics
• Hexagonal Marine Bundling & Rigid Bracing: Boiler tubes are compiled into hex bundles using thick high-tensile steel banding lines and integrated nylon lifting straps. Stowed inside ocean vessels using timber dunnage blocks and industrial lashing cables to prevent metal-on-metal collisions during heavy sea shipping.
• Complimentary Destination Port Demurrage: SXY Steel Group provides an automated allowance of 14 to 21 days of extended free container demurrage at your discharge port, giving your local logistics agents ample operational buffer time for customs clearance.
Boiler Tube
Pipe Type: Boiler Seamless Tube, Seamless Boiler Tube, Boiler Pipe
Application: For High-pressure Fluids Transmission (boiler, heat exchanger, condenser)
Specification: OD: 0.84” ~ 28” (21.3 ~ 711mm)
WT: 0.091” ~ 1.575” (2.3 ~ 40mm)
LENGTH: Fixed Length (5.8/6/11.8/12 mtr), SRL, DRL
Standard: ASTM A179, ASTM A192, ASTM A210
Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating
Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped
Specification of Boiler Tube
| OD*WT | OD*WT | OD*WT | OD*WT | OD*WT | OD*WT | OD*WT | OD*WT |
|---|---|---|---|---|---|---|---|
| 14*3 | 38*5.5 | 89*5 | 133*18 | 34*5 | 76*6 | 133*7 | 219*7 |
| 14*3.5 | 42*3 | 89*5.5 | 159*6 | 34*6.5 | 76*7 | 133*8 | 219*8 |
| 14*4 | 42*3.5 | 89*6 | 159*6.5 | 38*3 | 76*8 | 133*10 | 219*9 |
| 16*3 | 42*4 | 89*7 | 159*7 | 38*3.5 | 76*9 | 133*12 | 219*10 |
| 18*2 | 42*5 | 89*7.5 | 159*8 | 38*4 | 76*10 | 133*13 | 219*12 |
| 18*3 | 42*6 | 89*8 | 159*9.5 | 38*4.5 | 89*4 | 133*14 | 219*13 |
| 18*4 | 42*8 | 89*9 | 159*10 | 38*5 | 89*4.5 | 133*16 | 219*14 |
| 18*5 | 45*3 | 89*10 | 159*12 | 219*16 | 273*36 | 356*28 | 426*12 |
| 19*2 | 45*4 | 89*11 | 159*14 | 219*18 | 273*40 | 356*36 | 426*13 |
| 21*4 | 45*5 | 89*12 | 159*16 | 219*20 | 273*42 | 377*9 | 426*14 |
| 22*2.5 | 45*6 | 108*4.5 | 159*18 | 219*22 | 273*45 | 377*10 | 426*17 |
| 22*3 | 45*7 | 108*5 | 159*20 | 219*24 | 298*36 | 377*12 | 426*20 |
| 22*4 | 48*4 | 108*6 | 159*28 | 219*25 | 325*8 | 377*14 | 426*22 |
| 22*5 | 48*4.5 | 108*7 | 168*6 | 219*26 | 325*9 | 377*15 | 426*30 |
| 25*2.5 | 48*5 | 108*8 | 168*7 | 219*28 | 325*10 | 377*16 | 426*36 |
| 25*3 | 48*6 | 108*9 | 168*8 | 219*30 | 325*11 | 377*18 | 426*40 |
| 25*4 | 48*7 | 108*10 | 168*9.5 | 219*32 | 325*12 | 377*20 | 426*50 |
| 25*5 | 48,3*12.5 | 108*12 | 168*10 | 219*35 | 325*13 | 377*22 | 457*9.5 |
| 25*5.5 | 51*3 | 108*14 | 168*11 | 219*38 | 325*14 | 377*25 | 457*14 |
| 27*3.5 | 51*3.5 | 108*15 | 168*12 | 273*7 | 325*15 | 377*32 | 457*16 |
| 27*4 | 51*4 | 108*16 | 168*14 | 273*8 | 325*16 | 377*36 | 457*19 |
| 27*5 | 51*5 | 108*20 | 168*15 | 273*9 | 325*17 | 377*40 | 457*24 |
| 27*5.5 | 51*6 | 114*5 | 168*16 | 273*9.5 | 325*18 | 377*45 | 457*65 |
| 28*2.5 | 57*4 | 114*6 | 168*18 | 273*10 | 325*20 | 377*50 | 508*13 |
| 28*3 | 57*5 | 114*7 | 168*20 | 273*11 | 325*22 | 406*9.5 | 508*16 |
| 28*3.5 | 57*5.5 | 114*8 | 168*22 | 273*12 | 325*23 | 406*11 | 508*20 |
| 28*4 | 57*6 | 114*8.5 | 168*25 | 273*13 | 325*25 | 406*13 | 508*22 |
| 30*2.5 | 60*4 | 114*9 | 168*28 | 273*15 | 325*28 | 406*17 | 558.8*14 |
| 32*2.5 | 60*4 | 114*10 | 180*10 | 273*16 | 325*30 | 406*22 | 530*13 |
| 32*3 | 60*5 | 114*11 | 194*10 | 273*18 | 325*32 | 406*32 | 530*20 |
| 32*3.5 | 60*6 | 114*12 | 194*12 | 273*20 | 325*36 | 406*36 | 570*12.5 |
| 32*4 | 60*7 | 114*13 | 194*14 | 273*22 | 325*40 | 406*40 | 610*13 |
| 32*4.5 | 60*8 | 114*14 | 194*16 | 273*25 | 325*45 | 406*55 | 610*18 |
| 32*5 | 60*9 | 114*16 | 194*18 | 273*28 | 356*9.5 | 406.4*50 | 610*78 |
| 34*3 | 60*10 | 114*18 | 194*20 | 273*30 | 356*15 | 406.4*55 | 624*14.2 |
| 34*4 | 76*4.5 | 133*5 | 194*26 | 273*32 | 356*17 | 406*60 | 824*16.5 |
| 34*4.5 | 76*5 | 133*6 | 219*6.5 | 273*35 |
Technical data
| Standard | Parameter | Range (mm) | Tolerance |
|---|---|---|---|
| GB3087 | Out Diameter | ≤180 | ±1.0% (min: ±0.5mm) |
| GB5310 | Out Diameter | ≤50 | ±0.5mm |
| >50 | ±1.0% | ||
| GB3087 | Wall Thickness (mm) | 3-20 | +15%, -12.5% |
| >20 | ±12.5% | ||
| GB5310 | Wall Thickness (mm) | <3.5 | +15%, -10% |
| 3.5-20 | +15%, -10% | ||
| >20 | ±10% |
| Standard | Out Diameter (mm) | Tolerance |
|---|---|---|
| GB3087 | ≤180 | ±1.0% (min: ±0.5mm) |
| GB5310 | ≤50 | ±0.5mm |
| >50 | ±1.0% |
Chemical Composition & Mechanical Properties
| Standard | Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|---|---|---|---|---|
| DIN 17175 | St35.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.030 | ≤0.030 | 360-480 | ≥235 | ≥25 |
| St45.8 | ≤0.21 | 0.10-0.35 | 0.40-1.20 | ≤0.030 | ≤0.030 | 410-530 | ≥255 | ≥21 |
Packing and shipping
Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.
Application Areas
Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments.
Factory workshop
With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.
Free Boiler Loop Layout Audit & Pressure Pipe Nesting Optimization Assessment
Managing technical procurement parameters for a thermal power station boiler bank, complex heat exchanger assembly drawing, refinery pipeline layout, or global energy utility tender? Upload your cut-length distribution schedules, pressure requirements, steel grades, or raw Bill of Materials (BOM) files below. SXY Steel Group’s engineering team will conduct a professional nesting configuration audit to eliminate waste margins and balance your procurement budget.
