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Help CenterASME SA179 Cold Drawn Seamless Carbon Steel Tube-Hengzhihui For Heat Exchanger & Condenser – OD 6~204mm | WT 1~18mm
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ASME SA179 Cold Drawn Seamless Carbon Steel Tube-Hengzhihui
For Heat Exchanger & Condenser – OD 6~204mm | WT 1~18mm
Product Overview
Our ASME SA179 / ASTM A179 seamless cold drawn low carbon steel tubes are specifically designed for heat exchangers, condensers, and similar heat transfer apparatus. Manufactured by the cold drawing process at our Wuxi facility, these tubes deliver tight dimensional tolerances, smooth internal surfaces, and uniform wall thickness for optimal heat transfer efficiency.
Key Specifications:
Standard: ASME SA179 / ASTM A179
Material: Low Carbon Steel (≤0.25% C)
Outer Diameter: 6mm – 204mm (Standard Stock: 19mm – 89mm)
Wall Thickness: 1mm – 18mm
Length: 3m – 12m (Custom lengths available)
Manufacturing Process: Cold Drawn (Seamless)
Surface Finish: Bright Annealed / As-drawn / Oiled
Hardness: ≤72 HRB – excellent for tube expansion
✅ ASME SA179 certified – Compliant with ASME Boiler & Pressure Vessel Code Section II
✅ Seamless cold drawn – No weld seam – crevice-free corrosion resistance
✅ Low carbon content (≤0.25%) – Superior ductility for rolling and U-bending
✅ 100% hydrostatic & eddy current tested – Guaranteed leak-free bundles
✅ EN 10204 Type 3.1 MTC provided with heat number
✅ Factory direct – Competitive pricing and fast delivery
Chemical Composition
| Element | Requirement | Significance |
|---|---|---|
| Carbon (C) | ≤0.25% | Ensures ductility for tube expansion |
| Manganese (Mn) | 0.27% – 0.63% | Provides strength |
| Phosphorus (P) | ≤0.035% | Low for good formability |
| Sulfur (S) | ≤0.035% | Low for good formability |
💡 Low carbon content ensures tubes can be rolled, expanded, and U-bent without cracking – critical for heat exchanger fabrication.
Mechanical Properties
| Property | Value | Significance |
|---|---|---|
| Tensile Strength | ≥325 MPa (47,000 psi) | Adequate for heat exchanger pressures |
| Yield Strength | ≥180 MPa (26,000 psi) | Low yield ensures good expansion |
| Elongation | ≥35% | Excellent ductility for rolling |
| Hardness (HRB) | ≤72 | Soft – easy rolling, no over-rolling damage |
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 | — | — |
Manufacturing Process – Cold Drawing
Cold Drawing Process Highlights:
Hot rolled tubes are used as starting material
Pickling removes scale – prepares the surface for cold working
Cold drawing reduces diameter – increases strength and achieves precise dimensions
Annealing relieves stress – restores ductility
Straightening – ensures straightness tolerance
Precision cutting – to exact customer length requirements
100% NDT and hydrostatic testing – guarantees integrity
Key Applications
| Industry | Equipment | Tube Size | Connection |
|---|---|---|---|
| Power Generation | Surface Condensers | 5/8″ OD, 18 BWG | Rolled |
| Chemical Processing | Shell & Tube Heat Exchangers | 1″ OD, 14 BWG | Rolled / Weld |
| HVAC | Chiller Evaporators / Condensers | 1/2″ – 3/4″ OD | Rolled |
| Marine | Oil Coolers | 5/8″ – 3/4″ OD | Rolled |
| Petrochemical | Process Coolers | 3/4″ – 1-1/4″ OD | Weld |
Why Choose Our ASME SA179 Tubes?
| Advantage | Description |
|---|---|
| Cold drawing specialist | Dedicated cold drawing line for precise dimensions |
| Wide size range | OD 6-204mm – one-stop sourcing |
| Standard stock sizes | 19-89mm – ready for immediate shipment |
| Low hardness (≤72 HRB) | Easy tube expansion – no cracking |
| Smooth ID/OD | Optimal heat transfer – minimal fouling |
| 100% ECT + hydrostatic | Leak-free tube bundles |
| Full traceability | EN 10204 3.1 MTC with heat number |
Contact for Quote
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: www.hzhmetals.com / www.wuxihengzhihui.com
Contact Person: Alice Yuan
Reply within 24 hours.
Tags: ASME SA179 Heat Exchanger Tube Condenser Tube Cold Drawn Seamless Tube Low Carbon Steel Tube SA179 Tube Power Plant Condenser
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