Smooth Condenser Tubes for High-Efficiency Thermal Systems
China Super Tech Co., Ltd. (CST) manufactures precision stainless steel and alloy tubing solutions engineered for high-performance industrial thermal management, HVAC&R systems, and data center liquid cooling infrastructure. Operating from advanced production facilities in China, CST delivers reliable, high-integrity tube components to global equipment manufacturers, mechanical engineering firms, and system integrators.
The core product line centers on high-precision Smooth Condenser Tubes, available in austenitic stainless steel grades such as AISI 304/304L and 316/316L, alongside specialized nickel alloys and titanium. Manufactured through automated tube-forming and high-frequency welding lines, these tubes feature controlled inner surface finishes, tight dimensional tolerances, and verified structural integrity.
Types
Straight Smooth Condenser Tubes
Cut-to-length straight tubing supplied in standard or custom lengths up to 12 meters.
Application: Shell-and-tube heat exchangers, straight-tube chillers, and industrial condensing units.
U-Bend Smooth Condenser Tubes
Stress-relieved bent tubes with controlled radius elongation and minimum wall thinning at the bend apex.
Application: Compact shell-and-tube bundles, closed-loop evaporators, and tight-space thermal systems.
Electropolished Smooth Tubes
Mechanically polished base tube followed by electrochemical treatment yielding internal surface roughness Ra <= 0.4 micrometer.
Application: High-purity data center direct-to-chip cooling and critical coolant distribution lines.
Technical Specifications
| Parameter | Metric Range / Standard |
| Outer Diameter (OD) | 6.0 mm - 50.8 mm (1/4 inch - 2 inch) |
| Wall Thickness (WT) | 0.5 mm - 3.0 mm |
| Length | Up to 12,000 mm (Straight); Custom radii (U-Bend) |
| Manufacturing Standards | ASTM A249 / ASTM A269 / ASTM A312 / EN 10217-7 |
| Dimensional Tolerance | OD: +/- 0.08 mm |
| Straightness | <= 1.0 mm per 1000 mm |
Materials & Surface Finish
Material Grades:
AISI 304 / 304L (Standard corrosion resistance for commercial HVAC and water-glycol loops)
AISI 316 / 316L (Molybdenum-alloyed for enhanced resistance to chlorides, aggressive chemical coolants, and marine environments)
Titanium Grade 2 / Duplex 2205 (Available for specialized chemical processing and high-salinity condenser applications)
Surface Condition:
As-welded and bright-annealed (solution annealed in a protective hydrogen atmosphere to eliminate oxide scale)
Passivated (chemically treated to remove free iron and reinforce the passive chromium oxide layer)
Mechanically and electropolished interior for minimized fluid friction and zero particulate shedding.
Performance Features
Low Friction Factor:
Smooth internal wall limits boundary layer turbulence, minimizing pressure drop across long condenser circuits.
High Thermal Conductivity Retention:
Controlled ultra-thin wall thickness ensures minimal thermal resistance between the working fluid and condensing medium.
Weld Seam Integrity:
High-frequency TIG or laser welding combined with online eddy current inspection ensures 100% seam soundness.
Corrosion Resistance:
Stable austenitic grain structure prevents stress corrosion cracking under continuous thermal cycling.
Applications
HVAC&R Condensers:
Shell-and-tube condensers for commercial chillers and large-scale refrigeration compressors.
Data Center Liquid Cooling:
Coolant distribution lines and CDU (Coolant Distribution Unit) internal heat exchange circuits.
Power Generation & Process Plant:
Steam surface condensers, auxiliary heat exchangers, and closed-loop cooling systems.
Production Process:
Precision slitting -> Continuous roll-forming -> Automated TIG/Laser welding -> Online bead rolling and annealing -> Sizing and straightening -> Non-destructive testing.
Testing & Inspection Equipment:
Eddy Current Testing: 100% inline electromagnetic testing to detect micro-cracks, pinholes, and wall defects.
Hydrostatic / Pneumatic Testing: Pressure holding verification per ASTM specifications.
Mechanical Testing: Tensile testing, flattening test, flaring test, and reverse bend test conducted per lot.
Surface Roughness Profilometer: Laser measurement verifying internal roughness thresholds.
Traceability: Full Material Test Reports supplied in accordance with EN 10204 3.1, tracing chemical composition and mechanical test results back to the original melt batch.
Custom Tube Manufacturing
Custom Geometry:
Tailored outer diameters, non-standard wall thicknesses, and precise U-bend leg lengths.
Specialized Cutting & Deburring:
Laser cutting to exact millimeter tolerances with automated internal deburring to prevent particulate contamination.
End Finishing:
Square-cut, bevelled, deburred, or grooved ends prepared for tube-sheet expansion or welding.
Packaging Solutions:
Wooden crating, plastic-capped ends, and nitrogen-purged sealing for contamination-sensitive shipments.
Certifications
FAQ
As one of the most professional smooth condenser tube manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale OEM smooth condenser tube from our factory. Also, custom service is available.
