Heat Exchanger Tubes
Precision tube solutions for shell & tube heat exchangers, condensers, evaporators, coolers and demanding industrial heat-transfer equipment.
DLSS supplies heat exchanger tubes in stainless steel, duplex, super duplex, nickel alloy, titanium and copper nickel, with straight, U-bend, long-length and finned tube configurations available according to project requirements.
- Multiple Materials — Stainless · Duplex · Nickel Alloy · Titanium · Copper Nickel
- Special Tube Configurations — Straight · U-Bend · Long Length · Finned
- Inspection & Documentation — ET · UT · PMI · Hydro · EN 10204 3.1 / 3.2
Multiple Materials
Stainless · Duplex · Nickel Alloy · Titanium · Copper Nickel
Custom Tube Dimensions
OD · WT · Length · Minimum Wall · Surface
U-Bending & Special Forms
Straight · U-Bent · Finned · Long Length
Inspection Support
ET · UT · PMI · Hydro · 3.1 / 3.2
Heat Exchanger Tubes for Reliable Heat Transfer
Heat exchanger tubes form the primary heat-transfer surface in shell & tube heat exchangers, condensers, evaporators, coolers and process heaters.
The correct tube specification depends on operating temperature, pressure, process fluid, corrosion environment, required service life and applicable project standards.
DLSS supports heat exchanger projects with multiple tube materials, customized dimensions, special tube forms, inspection requirements and technical documentation.
Heat Exchanger Tube Solutions by Material
Choose the material according to corrosion environment, temperature, pressure and project specification.
Stainless Steel Heat Exchanger Tubes
304L · 316L · 321 · 347H · 904L For chemical, refinery, power and general heat-transfer service.
Duplex Heat Exchanger Tubes
S31803 · S32205 For chloride-containing and corrosive process environments.
Super Duplex Heat Exchanger Tubes
S32750 · S32760 For severe chloride, seawater and corrosion-critical service.
Nickel Alloy Heat Exchanger Tubes
400 · 600 · 625 · 800/800H · 825 · C22 · C276 For high-temperature and aggressive chemical environments.
Titanium Heat Exchanger Tubes
Grade 2 · Grade 7 · Grade 12 For seawater, condensers, desalination and chloride service.
Copper Nickel Condenser Tubes
C70600 · C71500 For condensers, seawater cooling and heat-transfer systems.
Brass Condenser Tubes
C68700 · C44300 For condensers, evaporators and cooling-water service.
Carbon & Alloy Steel Heat Transfer Tubes
ASTM A179 · A213 T-Series For heat exchangers, condensers and elevated-temperature service.
Heat Exchanger Tube Forms
Different exchanger designs require different tube configurations.
Straight Heat Exchanger Tubes
Straight seamless or welded tubes, where permitted by the applicable specification, for shell & tube heat exchangers and condensers.
U-Bend Heat Exchanger Tubes
Precision U-bend tubes with customized straight-leg length, bend radius and project-specific inspection requirements.
Long Length Heat Exchanger Tubes
Customized long-length tubes for large exchanger bundles requiring specific project lengths and fewer tube joints.
Finned Heat Exchanger Tubes
Low-fin and integral enhanced tube solutions designed to increase effective heat-transfer surface area.
Select the Right Tube Material
Tube material selection should consider:Process fluid · Chloride level · Temperature · Pressure · Corrosion mechanism · Fabrication requirements · Expected service life
| Material | Typical Grades | Typical Consideration |
|---|---|---|
| Stainless Steel | 304L / 316L / 321 / 347H | General process service |
| Duplex | S31803 / S32205 | Strength + chloride resistance |
| Super Duplex | S32750 / S32760 | Aggressive chloride service |
| Nickel Alloy | 625 / 825 / C276 | Chemical / high-temperature service |
| Titanium | Grade 2 / Grade 7 | Seawater / chloride environments |
| Copper Nickel | C70600 / C71500 | Condenser / seawater cooling |
Common Heat Exchanger Tube Standards
ASTM A179 / ASME SA179
Carbon steel heat exchanger tubes
ASTM A213 / ASME SA213
Stainless and alloy heat exchanger tubes
ASTM A789 / ASME SB789
Duplex stainless steel tubes
ASTM B111 / ASME SB111
Copper alloy condenser tubes
ASTM B338 / ASME SB338
Titanium heat exchanger tubes
ASTM B163 / B423 / B444 / B622
Nickel alloy tube specifications
Tube Specifications We Can Review
Intro
Send your drawing, TDC or material list for a technical specification review before quotation.
Material / Grade
Stainless / Duplex / Nickel / Titanium / CuNi
Construction
Seamless / Welded where applicable
Tube Form
Straight / U-Bend / Finned / Coiled tube
Outside Diameter
Standard & Customized
Wall Thickness
Standard / Average WT / Minimum WT
Length
Fixed / Random / Customized Long Length
Surface
Annealed / Pickled / BA / EP
Inspection
HT / ET / UT / PMI / PT / TPI
Documents
MTC / EN 10204 3.1 / 3.2
Heat Exchanger Tube Applications
Heat Exchanger Manufacturers
OEM tube supply for heat exchanger fabrication.
Power Plants & Condensers
Tube solutions for condensers, heaters and thermal systems.
Oil, Gas & Petrochemical
Heat exchanger tube solutions for process and refinery equipment.
Chemical Processing
Corrosion-resistant tubes for aggressive process environments.
Desalination & Seawater
Titanium, duplex and copper nickel materials for seawater service.
Refineries
Materials for corrosive and high-temperature heat-transfer systems.
Quality You Can Verify
Tube quality should be measurable, traceable and documented.
Material & Dimensional Inspection
PMI and spectrometer testing ensure correct material grade and dimensional accuracy.
Ring Gauge Inspection
Ensures dimensional accuracy and proper tube fitting.
Hydrostatic Pressure Testing
Verifies strength and leak-proof performance under pressure.
Penetrant Testing (PT)
Detects surface cracks and defects effectively.
Borescope Inspection
Ensures internal surface quality and detects inner defects.
Visual Inspection
Checks external surface quality and appearance.
Inspection requirements are reviewed according to the applicable material standard, purchase specification and project ITP.
From Tube Specification to Final Inspection
Specification Review
Material Confirmation
Tube Manufacturing
Heat Treatment
U-Bending / Finning if Required
Testing & Inspection
Documentation
Packing & Delivery
Why DLSS for Heat Exchanger Tube Projects?
Specification-Focused Support
Material, standard, dimensions, tube form and inspection requirements are reviewed before production.
Multi-Material Capability
One technical team supporting stainless steel, duplex, nickel alloy, titanium and copper nickel requirements.
Special Tube Processing
Custom sizes, long lengths, U-bending, finning and project-specific surface requirements.
Inspection & Project Support
Material traceability, inspection documentation, third-party coordination, packing and delivery support.
FAQ
What materials are available for heat exchanger tubes?
Can DLSS supply U-bend heat exchanger tubes?
Can minimum-wall tubes be supplied?
Can long-length tubes be supplied?
What inspections can be arranged?
Can EN 10204 3.2 documentation be arranged?
Technical Resources for Heat Exchanger Tube Projects
Material Guides
S32205 · S32750 · Alloy 625 · Titanium Gr.2 · C70600
Tube Standards
ASTM A179 · A213 · A249 · A789 · B111 · B338
Engineering Guides
Minimum WT · OD Tolerance · U-Bend Wall Thinning · Grain Size
Inspection Guides
ET vs UT · 3.1 vs 3.2 · Stainless vs Duplex · S32205 vs S32750