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Help CenterASME SA179 Seamless Cold-Drawn Low Carbon Steel Tube For Heat Exchanger & Condenser – ASME Boiler & Pressure Vessel Code Section II
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ASME SA179 Seamless Cold-Drawn Low Carbon Steel Tube
For Heat Exchanger & Condenser – ASME Boiler & Pressure Vessel Code Section II
Product Overview
ASME SA179 / ASTM A179 seamless cold-drawn low carbon steel tubes are specifically designed for heat exchangers, condensers, and similar heat transfer apparatus in accordance with the ASME Boiler and Pressure Vessel Code Section II.
Manufactured by the cold-drawing process, these tubes offer tight dimensional tolerances, smooth internal and external surfaces, and uniform wall thickness for optimal heat transfer efficiency.
✅ ASME SA179 certified – Compliant with ASME Boiler & Pressure Vessel Code
✅ Seamless cold-drawn – No weld seam – uniform wall thickness
✅ Low carbon content – Excellent ductility and formability
✅ 100% hydrostatic & eddy current tested
✅ EN 10204 Type 3.1 MTC provided
✅ Factory direct | Stock available | Fast delivery
Key Specifications
| Parameter | Details |
|---|---|
| Standard | ASME SA179 / ASTM A179 |
| Type | Seamless, Cold-Drawn |
| Material | Low Carbon Steel |
| OD Range | 1/8″ – 3″ (3.2mm – 76.2mm) |
| Wall Thickness | 0.5mm – 3mm (thicker on request) |
| Length | 3m – 12m (fixed or random) |
| Surface Finish | Bright annealed / As-drawn / Oiled |
| End Finish | Plain / Beveled / Threaded |
Chemical Composition (ASME SA179)
| Element | Requirement |
|---|---|
| Carbon (C) | ≤ 0.25% |
| Manganese (Mn) | 0.27% – 0.63% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.035% |
Mechanical Properties (ASME SA179)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 325 MPa (47,000 psi) |
| Yield Strength | ≥ 180 MPa (26,000 psi) |
| Elongation (in 2″) | ≥ 35% |
| Hardness (HRB) | ≤ 72 |
Dimensional Tolerances
| OD (mm) | Tolerance (mm) | WT (mm) | Tolerance (mm) |
|---|---|---|---|
| ±0.10 | ±0.10 | ||
| 25.4 – 38.1 | ±0.13 | 2.0 – 3.0 | ±0.12 |
| 38.1 – 50.8 | ±0.15 | > 3.0 | ±0.15 |
| 50.8 – 76.2 | ±0.20 | — | — |
Key Advantages
| Feature | Benefit |
|---|---|
| Cold-drawn seamless process | No weld seam – uniform wall thickness |
| Low carbon content | Excellent ductility and cold formability |
| Smooth ID & OD surface | Optimal heat transfer efficiency |
| Tight dimensional accuracy | Easy installation and tube replacement |
| 100% hydrostatic tested | Guaranteed pressure integrity |
| 100% eddy current tested | No surface or subsurface defects |
| ASME Code compliant | Acceptable for ASME stamping |
Applications – Heat Exchanger & Condenser
| Industry | Application |
|---|---|
| Power Generation | Feedwater heaters, surface condensers, low-pressure boilers |
| Chemical Processing | Shell & tube heat exchangers, coolers, transfer lines |
| HVAC (Heating, Ventilation, Air Conditioning) | Chillers, evaporators, condensing coils |
| Marine | Marine heat exchangers, oil coolers, fresh water generators |
| Petrochemical | Process heat transfer equipment |
| Refrigeration | Condenser and evaporator coils |
| Pharmaceutical | Sterile heat transfer systems |
Available Sizes – Heat Exchanger & Condenser (Stock)
| OD (inch) | OD (mm) | WT (mm) | Typical Application |
|---|---|---|---|
| 1/4″ | 6.35 | 0.8 – 1.2 | Instrumentation heat transfer |
| 3/8″ | 9.53 | 1.0 – 1.5 | Small heat exchangers |
| 1/2″ | 12.70 | 1.0 – 2.0 | General heat exchanger tubes |
| 5/8″ | 15.88 | 1.2 – 2.5 | Condenser tubes (most common) |
| 3/4″ | 19.05 | 1.5 – 2.5 | Boiler components, cooling coils |
| 1″ | 25.40 | 1.5 – 3.0 | Heat transfer apparatus |
| 1-1/4″ | 31.75 | 1.8 – 3.0 | Industrial heat exchangers |
| 1-1/2″ | 38.10 | 2.0 – 3.0 | Power plant condensers |
| 2″ | 50.80 | 2.0 – 3.0 | Large heat transfer units |
| 3″ | 76.20 | 2.0 – 3.0 | Special applications |
💡 Note for condenser tube replacement: 5/8″ OD × 18-22 BWG is the most common size for power plant surface condensers.
Quality Testing & Inspection – Heat Exchanger Tubes
| Test | Method | Standard | Coverage |
|---|---|---|---|
| Hydrostatic Test | Water pressure | ASME SA179 | 100% |
| Eddy Current Test (ECT) | Non-destructive | ASTM E309 | 100% |
| Flattening Test | Ductility verification | ASME SA179 | Per batch |
| Flaring Test | Expansion capability | ASME SA179 | Per batch |
| Tensile Test | Mechanical properties | ASTM E8 | Per batch |
| Hardness Test | Rockwell B | ASTM E18 | Per batch |
| Visual & Dimensional | Micrometer / Endoscope | ASME SA179 | 100% |
Mill Test Certificate
EN 10204 Type 3.1 – Standard (in-house inspection)
EN 10204 Type 3.2 – Available upon request (third-party: SGS, BV, TUV, DNV)
ASME SA179 Certificate of Compliance – Available
Full traceability from melt to finished tube
Processing Services for Heat Exchanger Fabrication
| Service | Description |
|---|---|
| Cutting | Precision cutting to exact length (±1mm) |
| Tube Expanding | End expansion for tube-to-tubesheet joints |
| Tube Bending | U-bends, return bends for heat exchangers |
| Swaging / Reducing | End reduction for installation |
| Beveling / Flaring | For welding or rolling connections |
| Surface Cleaning | Degreasing, bright annealing |
Packaging & Shipping – Heat Exchanger Tubes
| Item | Details |
|---|---|
| Packaging | Hexagonal or square bundles (small OD) |
| Tube Protection | Anti-rust oil or VCI paper + plastic end caps |
| Bundle Weight | 500-2000 kg per bundle |
| Marking | Stencil / spray / tag with grade, size, heat number, lot number |
| Lead time | 7–15 days (stock sizes), 20–30 days (custom) |
| Port | Tianjin / Shanghai / Guangzhou |
Why Choose Our ASME SA179 Heat Exchanger Tubes?
| Advantage | Description |
|---|---|
| ASME Code certified | Compliant with ASME Boiler & Pressure Vessel Code Section II |
| Cold drawn specialist | Dedicated cold drawing line for precision tubes |
| Excellent surface finish | Smooth ID/OD for optimal heat transfer |
| Full traceability | EN 10204 3.1 MTC with heat number |
| 100% NDT tested | Eddy current + hydrostatic on every tube |
| Stock availability | 5/8″ OD condenser tubes ready to ship |
| In-house processing | Cutting, bending, end preparation |
| Global export | Shipped to power plants and heat exchanger manufacturers worldwide |
Contact for Quote – ASME SA179 Heat Exchanger Tubes
Please provide the following details for your heat exchanger or condenser project:
OD (inch / mm) : _______
WT / BWG gauge : _______ (mm / gauge)
Length (m) : _______
Quantity : _______ (pieces / meters / tons)
U-bend required? : Yes / No
End Finish : Plain / Beveled / Expanded
Inspection : Standard / Third-party (SGS/BV/TUV)
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: www.wuxihengzhihui.com
Reply within 24 hours.
FAQ – ASME SA179 Heat Exchanger Tubes
Q1: What is the difference between ASME SA179 and ASTM A179?
A: ASME SA179 is the ASME Code version of ASTM A179. For ASME stamping projects, SA179 is required . For non-code projects, ASTM A179 is acceptable.
Q2: Is SA179 suitable for U-bend heat exchanger tubes?
A: Yes. The low carbon content (≤0.25%) provides excellent ductility for cold bending into U-tubes. Stress relief after bending is recommended.
Q3: What is the most common size for power plant condenser tubes?
A: 5/8″ OD × 18-22 BWG (0.049″ – 0.035″ wall thickness) is the industry standard for surface condensers.
Q4: Can SA179 tubes be expanded into tubesheets?
A: Yes. SA179 tubes are specifically designed for rolling/expanding into tubesheets for heat exchanger fabrication.
Q5: Do you provide U-bend heat exchanger tubes?
A: Yes. We supply U-bend tubes for heat exchangers with custom bend radii to customer drawings.
Q6: Can SA179 be used for high pressure?
A: No. SA179 is for low to medium pressure heat transfer applications (typically
Q7: What is the minimum bend radius for U-tubes?
A: Typically 1.5× OD. Smaller radii may require specialized bending and heat treatment.
Q8: Do you provide free samples?
A: 30cm sample available upon request. Shipping fee applies.
Related Products – Heat Exchanger Tubes
ASME SA179 – Heat exchanger & condenser tubes (this product)
ASME SA192 – High pressure boiler tubes
ASME SA210 – Medium carbon boiler tubes
ASME SA213 – Alloy steel heat exchanger tubes (T5, T11, T22)
ASME SA334 – Low temperature heat exchanger tubes
ASME SA556 – Feedwater heater tubes
Tags: ASME SA179 Heat Exchanger Tube Condenser Tube Seamless Cold Drawn Tube Low Carbon Steel Tube SA179 Tube ASME Boiler Code Power Plant Condenser
Quick Reference: BWG to MM Conversion for Condenser Tubes
| BWG Gauge | Wall Thickness (inch) | Wall Thickness (mm) | Typical Use |
|---|---|---|---|
| 12 BWG | 0.109″ | 2.77mm | Heavy duty heat exchangers |
| 14 BWG | 0.083″ | 2.11mm | Industrial heat exchangers |
| 16 BWG | 0.065″ | 1.65mm | General heat exchangers |
| 18 BWG | 0.049″ | 1.24mm | Power plant condensers (most common) |
| 20 BWG | 0.035″ | 0.89mm | Light duty condensers |
| 22 BWG | 0.028″ | 0.71mm | Thin wall condensers |
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