ASTM A179/A179M Seamless U-Bend Tube with 0.6 - 30mm Wall Thickness and Precision Cold-Drawn Tolerances for Condensers
This product is a seamless cold-drawn low carbon steel U-bend tube manufactured in accordance with the ASTM A179/A179M specification. It is designed primarily for tubular heat exchangers, condensers, and similar heat transfer equipment, with a wall thickness (WT) range of 0.6 - 30 mm and customizable lengths up to ~12 m. ASTM A179 defines both material composition and required mechanical and testing properties to ensure performance in demanding thermal service environments.
| Attribute | Details |
|---|---|
| Standard | ASTM A179/A179M |
| Material | Low-carbon seamless steel, cold drawn |
| Outside Diameter Range | (~3.2 mm up to ~76.2 mm standard range) |
| Wall Thickness (WT) | 0.6 mm - 30 mm (customizable) |
| Length | Up to ~12 m (customizable) |
| Tolerance (Wall & OD) | Precision cold-drawn tolerances |
| Straightness | Precision drawn, U-bend formed per customer tooling |
| Surface Condition | Smooth cold drawn finish |
| Heat Treatment | Stress-relieved or annealed after cold draw |
- High dimensional accuracy: Cold drawing process yields tight tolerances on diameter, wall thickness, and bend radii.
- Excellent heat transfer performance: Low carbon content and smooth internal surface support efficient condenser service.
- Good formability & weldability: Suitable for U-bend forming and joint fabrication without compromising structural integrity.
- Industry-Compliant Quality Assurance
We ensure all tubes meet the chemical and testing requirements of ASTM A179, including product analysis, flattening, flaring, hardness, and hydrostatic testing when applicable -- demonstrating conformity and reliable service life. - Precision U-Bend Fabrication
Custom U-bend forming is performed using controlled bend tooling with minimal deformation or compromise to wall thickness -- minimizing stress points and maintaining consistent heat exchanger performance. - Customizable & Flexible Supply
Wall thickness ranges (0.6 - 30 mm), lengths, and bend configurations are tailored to customer designs, with detailed mill test certifications per ASTM standards.
- ASTM A179/A179M: Seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes.
- Compatible with ASME SA-179 (identical mechanical and material specification).
Condenser Tubes for Power Plants & Industrial Heat Exchangers
Used as precision U-bend tubes in shell-and-tube condensers and heat exchangers where efficient heat transfer and dimensional quality are critical.
| Element | ASTM A179 Range (%) |
|---|---|
| Carbon (C) | 0.06 - 0.18 |
| Manganese (Mn) | 0.27 - 0.63 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | ≤ 0.25 (if specified) |
| Property | ASTM A179 Requirement |
|---|---|
| Tensile Strength | ≥ 325 MPa |
| Yield Strength | ≥ 180 MPa |
| Elongation | ≥ 35% |
| Hardness (HRB) | ≤ 72 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.