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High-Pressure Boiler Pipe & Heat Exchanger Tubes – Reliable Thermal Solutions
OurSeamless Boiler Pipesare manufactured to withstand extreme temperatures and internal pressures found in steam generation and heat transfer systems. We provide high-integrity tubing solutions that prevent creep deformation and oxidation, ensuring the long-term efficiency and safety of industrial boilers, superheaters, and economizers.
Common Standards and Steel Grades
We offer a comprehensive selection of carbon, low-alloy, and stainless boiler tubes according to major international standards:
ASTM A192 (ASME SA192):The standard for seamless carbon steel boiler tubes for high-pressure service.
ASTM A210 (ASME SA210):Seamless medium-carbon steel boiler and superheater tubes (GradesA1andC).
ASTM A213 (ASME SA213):Seamless ferritic and austenitic alloy-steel boiler and heat-exchanger tubes.
Popular Grades:T2, T11, T12, T22, T91, T92, TP304/L, TP316/L.
EN 10216-2:Seamless steel tubes for pressure purposes (Non-alloy and alloy steel with specified elevated temperature properties).
Grades:P235GH, P265GH, 16Mo3, 13CrMo4-5.
DIN 17175:Heat-resistant seamless steel tubes (GradesSt35.8, St45.8, 15Mo3, 13CrMo44).
Dimensions and Technical Specifications
Our boiler tubes are produced with precision tolerances to ensure perfect fitment within tube sheets and headers:
|
Feature |
Specification Range |
|
Outer Diameter (OD) |
1/2” to 7” (12.7mm – 177.8mm) |
|
Wall Thickness (WT) |
0.035” to 0.866” (0.9mm – 22mm) |
|
Length |
Fixed lengths up to 24m (ideal for long-distance heat exchangers) |
|
End Finish |
Square cut, beveled, or swaged ends |
|
Surface Condition |
Pickled, Polished, Bright Annealed, or Shot Blasted |
Core Application Fields
These pipes are critical for any system involving high-temperature fluid or gas transfer:
Power Plants:High-pressure boilers, superheaters, reheaters, and steam headers.
Petrochemical:Heat exchangers, condensers, and furnace tubes.
Waste-to-Energy:Thermal waste processing boilers and incinerators.
Marine Boilers:Steam propulsion systems and shipboard heating.
Pulp & Paper:Chemical recovery boilers and steam supply lines.
ASTM A192 Steel Pipe Technical Specification
| Property | Minimum Requirement |
| Tensile Strength | 325 MPa (47 ksi) |
| Yield Strength | 180 MPa (26 ksi) |
| Elongation (in 2 in / 50mm) | 35% |
| Hardness (Rockwell B, max) | 77 HRB |
| Hardness (Brinell, max) | 137 HB |
ASTM A192 Steel Pipe Technical Specification
| Element | Composition (%) |
| Carbon (C) | 0.06 – 0.18 |
| Manganese (Mn) | 0.27 – 0.63 |
| Phosphorus (P, max) | 0.035 |
| Sulfur (S, max) | 0.035 |
| Silicon (Si, max) | 0.25 |
ASTM A192 Steel Pipe Technical Specification
| Test Name | Technical Requirement |
| Flattening Test | No cracks when flattened to a specified distance. |
| Flaring Test | Flare must expand the OD by a specific % without rupture. |
| Hardness Test | Conducted on 10% of all tubes to verify heat treatment. |
| Hydrostatic Test | 100% of tubes tested at pressure, or replaced by NDT (ET/UT). |
ASTM A192 Steel Pipe Technical Specification
| Nominal Size (in) | Outside Diameter (OD) | Wall Thickness (WT) Options | ||
| Imperial (in) | Metric (mm) | Imperial (in) | Metric (mm) | |
| 5/8" | 0.625 | 15.88 | 0.035, 0.049, 0.065, 0.083 | 0.89, 1.24, 1.65, 2.11 |
| 3/4" (Most Common) | 0.75 | 19.05 | 0.035, 0.049, 0.065, 0.083, 0.095, 0.109 | 0.89, 1.24, 1.65, 2.11, 2.41, 2.77 |
| 7/8" | 0.875 | 22.23 | 0.049, 0.065, 0.083, 0.095, 0.109 | 1.24, 1.65, 2.11, 2.41, 2.77 |
| 1" (High-Flow/Fouling Service) | 1 | 25.4 | 0.049, 0.065, 0.083, 0.095, 0.109, 0.120 | 1.24, 1.65, 2.11, 2.41, 2.77, 3.05 |
| 1-1/4" | 1.25 | 31.75 | 0.065, 0.083, 0.095, 0.109, 0.120, 0.134 | 1.65, 2.11, 2.41, 2.77, 3.05, 3.40 |
| 1-1/2" | 1.5 | 38.1 | 0.065, 0.083, 0.095, 0.109, 0.120, 0.134, 0.156 | 1.65, 2.11, 2.41, 2.77, 3.05, 3.40, 3.96 |
| 2" | 2 | 50.8 | 0.083, 0.095, 0.109, 0.120, 0.134, 0.156, 0.188 | 2.11, 2.41, 2.77, 3.05, 3.40, 3.96, 4.78 |
ASTM standards for Heat-exchanger and condenser tubes
| Abbr. | Corresponding | Application |
| A179 | ASTM A179 /A179M | Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes |
| A213 | ASTM A213 /A213M | Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| A214 | ASTM A214 /A214M | Specification for Electric-Resistance-Welded Carbon Steel Heat-Exchanger and Condenser Tubes |
| A249 | ASTM A249 /A249M | Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
| A498 | ASTM A498 /A498M | Specification for Seamless and Welded Carbon, Ferritic, and Austenitic Alloy Steel Heat-Exchanger Tubes with Integral Fins |
| A851 | ASTM A851 /ASME SA851 | Specification for High-Frequency Induction Welded, Unannealed, Austenitic Steel Condenser Tubes |
Seamless Heat Exchangertube Production Process
