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ASME SA192 Seamless Carbon Steel Boiler Tube
For High Pressure Service – Boilers, Superheaters, Heat Exchangers
ASME Boiler & Pressure Vessel Code Section II
Product Overview
ASME SA192 / ASTM A192 seamless carbon steel boiler tubes are specifically designed for high pressure service in boilers, superheaters, and heat exchangers in accordance with the ASME Boiler and Pressure Vessel Code Section II.
Manufactured by the seamless process and cold-drawn or hot-finished, these tubes offer higher strength than ASME SA179, making them ideal for high pressure boiler applications including water walls, economizers, and low-temperature superheater sections.
✅ ASME SA192 certified – Compliant with ASME Boiler & Pressure Vessel Code Section II
✅ Seamless construction – No weld seam – zero leak risk for high pressure
✅ Higher strength than SA179 – Designed for high pressure service
✅ Elevated temperature capability – Up to 850°F (454°C) continuous service
✅ 100% hydrostatic & eddy current tested – Guaranteed integrity
✅ EN 10204 Type 3.1 MTC provided with full traceability
✅ Factory direct | Stock available | Fast delivery
Key Specifications
| Parameter | Details |
|---|---|
| Standard | ASME SA192 / ASTM A192 |
| ASME Code | Boiler & Pressure Vessel Code Section II |
| Product Type | Seamless Carbon Steel Boiler Tube – High Pressure Service |
| OD Range | 1/8″ – 7″ (3.2mm – 177.8mm) |
| Wall Thickness | 1mm – 15mm (heavier wall capability than SA179) |
| Length | 3m – 12m (fixed or random) |
| Surface Finish | Black / Bare / Oiled |
| End Finish | Plain / Beveled / Threaded |
Chemical Composition – ASME SA192
| Element | Requirement | Significance for Boiler |
|---|---|---|
| Carbon (C) | 0.06% – 0.18% | Balanced for strength and weldability |
| Manganese (Mn) | 0.27% – 0.63% | Provides strength, controls hardenability |
| Phosphorus (P) | ≤ 0.035% | Low for good weldability |
| Sulfur (S) | ≤ 0.035% | Low for good formability |
Mechanical Properties – ASME SA192
| Property | Value | Significance for Boiler |
|---|---|---|
| Tensile Strength | ≥ 325 MPa (47,000 psi) | Adequate for high pressure |
| Yield Strength | ≥ 180 MPa (26,000 psi) | Lower than SA210 but sufficient |
| Elongation (in 2″) | ≥ 35% | Good ductility |
| Hardness (HRB) | ≤ 77 | Slightly harder than SA179 (72) |
ASME SA192 vs ASME SA179 – Comparison for Boiler Applications
| Feature | ASME SA179 | ASME SA192 |
|---|---|---|
| Primary Application | Heat exchangers, condensers | High pressure boilers |
| OD Range | 1/8″ – 3″ | 1/8″ – 7″ (larger) |
| Wall Thickness | Thin (0.5-3mm) | Medium to heavy (1-15mm) |
| Yield Strength | ≥180 MPa | ≥180 MPa (similar) |
| Tensile Strength | ≥325 MPa | ≥325 MPa (similar) |
| Hardness (HRB) | ≤72 | ≤77 |
| Pressure Rating | Low to medium | High |
| Max OD | 3″ | 7″ |
| Application | Heat transfer equipment | Boilers, superheaters |
💡 SA192 is designed for high pressure boiler service with heavier wall capability and larger diameters .
ASME SA192 vs ASME SA210 – Comparison for Boiler Applications
| Feature | ASME SA192 | ASME SA210 Grade C |
|---|---|---|
| Material Type | Low carbon | Medium carbon |
| Carbon content | 0.06-0.18% | ≤0.35% |
| Yield Strength | ≥180 MPa | ≥275 MPa |
| Tensile Strength | ≥325 MPa | ≥485 MPa |
| Hardness (HRB) | ≤77 | ≤89 |
| Typical Application | Standard high pressure boiler | Superheater, higher temp |
💡 **Use SA192 for standard high pressure boiler service . Use SA210 for superheater sections requiring higher strength .
Available Sizes – High Pressure Boiler Tubes (Stock)
| OD (inch) | OD (mm) | WT (mm) | Typical Boiler Application |
|---|---|---|---|
| 1″ | 25.4 | 2.0 – 5.0 | Small high pressure boilers |
| 1-1/4″ | 31.8 | 2.5 – 6.0 | General boiler service |
| 1-1/2″ | 38.1 | 3.0 – 7.0 | Water wall tubes |
| 2″ | 50.8 | 3.0 – 8.0 | Water wall – most common |
| 2-1/2″ | 63.5 | 3.5 – 9.0 | Industrial boiler tubes |
| 3″ | 76.2 | 4.0 – 10.0 | Power plant boiler tubes – most common |
| 3-1/2″ | 88.9 | 4.5 – 11.0 | High temperature service |
| 4″ | 101.6 | 5.0 – 12.0 | Boiler headers |
| 5″ | 127.0 | 6.0 – 14.0 | Heavy duty boiler service |
| 6″ | 152.4 | 6.0 – 15.0 | Large boiler components |
| 7″ | 177.8 | 8.0 – 15.0 | Custom orders |
💡 Most popular sizes: 2″ (50.8mm) and 3″ (76.2mm) for water wall and boiler tube applications .
Key Advantages – ASME SA192 High Pressure Boiler Tubes
| Feature | Benefit for Boiler Service |
|---|---|
| Seamless construction | No weld seam – no failure point at high pressure |
| Heavier wall capability | Up to 15mm wall thickness – handles higher pressure |
| Larger diameter capability | Up to 7″ OD – boiler headers, downcomers |
| ASME Code certified | Acceptable for ASME Section I (Power Boilers) stamping |
| 100% hydrostatic tested | Guaranteed pressure integrity |
| 100% eddy current tested | No surface defects |
| Elevated temperature design | Designed for up to 850°F (454°C) |
| Good weldability | Low carbon content – standard procedures |
| Uniform wall thickness | Consistent heat transfer |
| Full traceability | EN 10204 3.1 MTC with heat number |
Boiler Applications – ASME SA192
| Boiler Section | Typical OD (inch) | WT (mm) | Operating Temp | Operating Pressure | Suitability |
|---|---|---|---|---|---|
| Water wall tubes | 2″ – 3″ | 4.0 – 6.0 | 500-700°F | 1,500-2,500 PSI | Excellent |
| Economizer tubes | 1.5″ – 2.5″ | 3.0 – 5.0 | 400-600°F | 1,500-2,500 PSI | Excellent |
| Low temp superheater | 1.5″ – 2.5″ | 4.0 – 6.0 | 700-850°F | 1,500-2,500 PSI | Good |
| Downcomer tubes | 3″ – 7″ | 5.0 – 10.0 | 400-600°F | 1,500-2,500 PSI | Excellent |
| Riser tubes | 2″ – 3″ | 4.0 – 6.0 | 500-700°F | 1,500-2,500 PSI | Excellent |
| Headers | 4″ – 7″ | 8.0 – 12.0 | 500-800°F | 1,500-2,500 PSI | Good |
💡 ASME SA192 covers the majority of subcritical boiler tube applications .
Quality Testing & Inspection – High Pressure Boiler Tubes
| Test | Method | Standard | Coverage | Importance |
|---|---|---|---|---|
| Hydrostatic Test | Water pressure | ASME SA192 | 100% | Leak-free for high pressure |
| Eddy Current (ECT) | Non-destructive | ASTM E309 | 100% | Detects surface defects |
| Ultrasonic (UT) | Optional | ASTM E213 | On request | Internal defect detection |
| Flattening Test | Ductility | ASME SA192 | Per batch | Ensures ductility |
| Flaring Test | Expansion | ASME SA192 | Per batch | Tube end integrity |
| Tensile Test | Properties | ASTM E8 | Per batch | Strength verification |
| Hardness Test | Rockwell B | ASTM E18 | Per batch | ≤77 HRB |
| Dimensional Inspection | Micrometer | ASME SA192 | 100% | Tube-to-baffle fit |
Heat Treatment Requirements – ASME SA192
| Condition | Heat Treatment Required? | Benefit |
|---|---|---|
| Hot finished (as-rolled) | Not required | Standard condition |
| Cold drawn | Stress relief required | Removes residual stress |
| Supplemental high temp service | Normalized recommended | Improved creep strength |
| Grade B/C substitutes | As required | — |
💡 For critical high temperature boiler service, normalized SA192 tube provides superior creep resistance .
Mill Test Certificate – ASME SA192
ASME SA192 Certificate of Compliance – Standard
EN 10204 Type 3.1 MTC – Provided with heat number
EN 10204 Type 3.2 – Available upon request (third-party: SGS, BV, TUV, DNV)
Traceability: Full traceability from melt to finished tube (heat number → tube → boiler)
Test report includes: Heat analysis, tensile results, flattening/flaring results, hardness
Processing Services – High Pressure Boiler Tubes
| Service | Description |
|---|---|
| Cutting | Precision cutting to exact length (±1mm) |
| Beveling | For welding preparation (30°-37.5°) |
| Bending | Cold or hot bending – for boiler coils |
| Threading | NPT, BSP, or custom threads |
| Heat treatment | Normalizing, stress relieving |
| Surface treatment | Oiling, painting, galvanized |
Packaging & Shipping – Boiler Tubes
| Item | Details |
|---|---|
| Packaging | Hexagonal or square bundles (small OD) |
| Large OD | Single pieces or loose bundles |
| Protection | Anti-rust oil + plastic end caps |
| Marking | Stencil: Grade, size, heat number, ASME SA192 |
| Lead time | 7–15 days (stock sizes), 20–30 days (custom) |
| Port | Tianjin / Shanghai / Guangzhou |
Why Choose Our ASME SA192 High Pressure Boiler Tubes?
| Advantage | Description |
|---|---|
| ASME Code certified | Compliant with ASME Boiler & Pressure Vessel Code Section II |
| High pressure specialist | Dedicated line for high pressure boiler applications |
| Larger diameters | Up to 7″ OD – boiler headers, downcomers |
| Heavier walls | Up to 15mm wall thickness – higher pressure rating |
| 100% tested | Hydrostatic + eddy current on every tube |
| Full traceability | EN 10204 3.1 MTC with heat number |
| Stock availability | Common boiler sizes (2″, 3″) ready to ship |
| In-house processing | Cutting, beveling, bending |
| Global export | Shipped to power plants worldwide |
Contact for Quote – ASME SA192 Boiler Tubes
Please provide the following details for your high pressure boiler project:
OD (inch / mm) : _______
WT (mm) : _______
Length (m) : _______
Quantity : _______ (pieces / meters / tons)
Application : Water wall / Economizer / Superheater / Downcomer / Header
End Finish : Plain / Beveled / Threaded
Inspection : Standard / Third-party (SGS/BV/TUV/DNV)
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website:
Reply within 24 hours.
FAQ – ASME SA192 High Pressure Boiler Tubes
Q1: What is ASME SA192 used for?
A: ASME SA192 seamless carbon steel boiler tubes are used for high pressure service in boilers, superheaters, and heat exchangers .
Q2: What is the difference between ASME SA192 and ASME SA179?
A: SA192 is designed for high pressure boiler service with heavier wall thickness capability (up to 15mm) and larger OD (up to 7″) . SA179 is for heat exchangers and condensers (thin wall, max 3″ OD) .
Q3: What is the maximum operating temperature for SA192?
A: Up to 850°F (454°C) . For higher temperatures, use ASME SA210 or ASME SA213 alloy grades .
Q4: What is the most common size for SA192 boiler tubes?
A: 2″ (50.8mm) and 3″ (76.2mm) for water wall tubes . 4″-7″ for headers and downcomers .
Q5: Is SA192 suitable for superheater service?
A: Yes, for low temperature superheater sections (up to 850°F) . For high temperature superheaters, use ASME SA210 Grade C or SA213 alloy .
Q6: What is the difference between SA192 and SA210?
A: SA210 has higher strength (≥485 MPa vs ≥325 MPa) and higher carbon content . SA210 is for higher temperature superheater service .
Q7: Does SA192 require impact testing?
A: Generally no for standard boiler service . For low temperature applications or specific requirements, impact testing may be specified .
Q8: Is SA192 weldable?
A: Yes . SA192 has excellent weldability with standard carbon steel procedures . No preheat required for thin sections .
Q9: Do you provide third-party inspection?
A: Yes. SGS, BV, TUV, DNV, or any customer-specified agency.
Q10: Do you offer free samples?
A: 30cm sample available upon request. Shipping fee applies.
Related Products – Boiler Tubes
ASME SA179 – Heat exchanger & condenser tubes
ASME SA192 – High pressure boiler tubes (this product)
ASME SA210 – Medium carbon boiler tubes (higher strength)
ASME SA213 – Alloy steel boiler tubes (T11, T22, T91)
ASME SA335 – Alloy steel pipe (P11, P22, P91)
Tags: ASME SA192 High Pressure Boiler Tube Seamless Boiler Tube SA192 Tube ASME Code Boiler Tube Power Plant Boiler Water Wall Tube
Quick Reference – SA192 Boiler Tube Applications
| Boiler Section | Typical OD | Typical WT | SA192 Suitability |
|---|---|---|---|
| Water wall | 2″ – 3″ (50-76mm) | 4.0 – 6.0 mm | Excellent |
| Economizer | 1.5″ – 2.5″ (38-63mm) | 3.0 – 5.0 mm | Excellent |
| Low temp superheater | 1.5″ – 2.5″ (38-63mm) | 4.0 – 6.0 mm | Good |
| Downcomer | 3″ – 7″ (76-178mm) | 5.0 – 10.0 mm | Excellent |
| Header | 4″ – 7″ (100-178mm) | 8.0 – 12.0 mm | Good |
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