Stainless Steel Heat Exchanger Tubes
Reliable stainless steel tubes for heat exchangers, condensers, evaporators, coolers and process heat-transfer equipment.
Available in 304 / 304L, 316 / 316L, 321, 347 / 347H and 904L, with straight, U-bend and customized long-length configurations according to project requirements.
- Straight & U-Bend Tubes — Standard and customized tube configurations
- ASTM / ASME / EN Standards — Project specification support
- Testing & Inspection — ET · UT · PMI · Hydro · EN 10204 3.1 / 3.2
Wide Material Range
304L · 316L · 321 · 347H · 904L
Documentation Support
EN 10204 3.1 / 3.2 according to project requirements
U-Bend Available
Custom straight-leg length & bend radius
Testing & Inspection
ET · UT · PMI · Hydro · Dimensional
Precision Stainless Steel Tubes for Efficient Heat Transfer
Stainless steel heat exchanger tubes provide a practical combination of corrosion resistance, mechanical strength, fabrication performance and dimensional stability for industrial heat-transfer equipment.
They are commonly used as the primary heat-transfer surface in shell & tube heat exchangers, condensers, evaporators, process heaters and industrial coolers.
Grade selection should consider process fluid, chloride concentration, operating temperature, design pressure, corrosion mechanism, expected service life, applicable material standard and inspection requirements.
DLSS supports project requirements from tube specification and material confirmation through processing, inspection, documentation, packing and delivery.
Corrosion Resistance
Multiple stainless steel grades for different operating environments.
Heat Transfer Performance
Controlled dimensions and surface condition.
Dimensional Accuracy
OD, WT, length and straightness according to specification.
Standards Compliance
ASTM, ASME and EN requirements supported.
Stainless Steel Grades We Supply
Select the grade according to corrosion environment, operating temperature and project specification.
304 / 304L
General-purpose austenitic stainless steel with good fabrication and corrosion performance for standard heat exchanger service.
316 / 316L
Molybdenum-alloyed stainless steel offering improved resistance to localized corrosion for chemical and more demanding process environments.
321
Titanium-stabilized austenitic stainless steel suited to applications requiring reliable performance at elevated temperatures.
347 / 347H
Niobium-stabilized stainless steel for elevated-temperature service. 347H is intended for applications requiring improved high-temperature strength.
904L
High-nickel, high-molybdenum austenitic stainless steel for more aggressive chemical and corrosion environments.
Available Tube Forms
Different heat exchanger designs require different tube configurations.
Straight Heat Exchanger Tubes
Straight seamless or welded tubes, where permitted by the applicable specification, for fixed tubesheet, floating-head and other heat exchanger designs.
U-Bend Heat Exchanger Tubes
OD · WT · Straight-Leg Length · Bend Radius · Wall Thinning · Ovality
Long Length Tubes
Available length depends on material grade, OD, wall thickness, manufacturing route and transportation requirements.
Finned Tubes
Low Fin · Integral Enhanced · Project-Specific Configurations
Stainless Steel Heat Exchanger Tube Specifications
| Item | Specification |
|---|---|
| Outside Diameter (OD) | 6.0 mm – 114.3 mm |
| Wall Thickness (WT) | 0.5 mm – 12.0 mm |
| Length | Up to 40 meters |
| Standards | ASTM A213 / A269 / ASME SA213 ；EN 10216-5 / EN 10204 |
| Surface Finish | Annealed & Pickled / Bright Annealed |
| Inspection & Testing | ET, UT, PMI, Hydro, Dimensional |
| Documentation | EN 10204 3.1 / 3.2, MTC, Reports, Packing List |
Common Stainless Steel Tube Standards
ASTM A213 / ASME SA213
Seamless ferritic and austenitic alloy-steel tubes for boiler, superheater and heat exchanger applications.Common stainless grades include:TP304 · TP304L · TP316 · TP316L · TP321 · TP347 · TP347H
ASTM A249 / ASME SA249
Welded austenitic steel tubes for boiler, superheater, heat exchanger and condenser applications.
ASTM A269
Seamless and welded austenitic stainless steel tubing for general service.The suitability of ASTM A269 should be evaluated according to the actual application and project specification.
EN 10216-5
Seamless stainless steel tubes for pressure purposes.Material grade, dimensional and inspection requirements should be confirmed according to the applicable project specification.
Stainless Steel Heat Exchanger Tube Applications
Heat Exchanger Manufacturers
Tube supply for shell & tube heat exchanger production, condensers, replacement bundles and retubing projects.
Power Generation
Tube supply for condensers, heaters and auxiliary thermal systems.
Oil, Gas & Petrochemical
Stainless steel tube solutions for refinery and petrochemical heat-transfer equipment.
Chemical Processing
Stainless steel tubes for process heat exchangers operating in corrosive environments.
Desalination & Seawater
Titanium, duplex and copper nickel solutions for seawater environments.
Industrial Cooling
Tube solutions for process cooling, utility systems and industrial heat-transfer equipment.
Testing, Inspection & Documentation
ET
Eddy Current Testing
UT
Ultrasonic Testing
PMI
Positive Material Identification
Hydro
Hydrostatic Testing
Dimensional Inspection
OD / WT / Length
Documentation
Reports & Certificates EN 10204 3.1 / 3.2
Project Documentation Support
- EN 10204 3.1 / 3.2 Certificates
- MTC (Mill Test Certificate)
- PMI Report
- ET / UT Reports
- Dimensional Reports
- Packing List & More
Complete documentation for seamless approvals and traceability.
Why DLSS for Stainless Steel Heat Exchanger Tubes?
Special Alloy Range
SS · Duplex · Ni · Ti · CuNi
Custom & Long Length
OD · WT · Min WT · Length
U-Bending
Radius · Leg Length · Inspection
Finned Tubes
Low Fin · Integral Fin · Enhanced Surface
Inspection & 3.2
ET · UT · PMI · Hydro · TPI
Urgent Project Support
Stock · Technical Review · Fast Response
FAQ
What stainless steel grades are available for heat exchanger tubes?
Can DLSS supply stainless steel U-bend tubes?
Can minimum-wall stainless steel tubes be supplied?
Can long-length stainless steel tubes be supplied?
What testing methods are available?
Can EN 10204 3.2 documentation be arranged?
Technical Resources
ASTM A213 Tube Requirements
Grades, heat treatment, dimensions, tolerances and testing requirements.
Minimum Wall vs Average Wall Thickness
Understand the difference between minimum-wall and average-wall tube specifications.
Heat Exchanger Tube OD Tolerance
Understand why OD accuracy matters for tubesheet fitting, expansion and exchanger assembly.
316L vs Duplex Stainless Steel
Compare corrosion resistance, mechanical strength and typical heat exchanger applications.