ASTM A269 / ASME SA269
ASTM A269 / ASME SA269 Seamless & Welded Austenitic Stainless Steel Tubes
Emirerri Steel is a trusted manufacturer and exporter of ASTM A269 / ASME SA269 stainless steel tubes, designed for general service applications in industries where corrosion resistance, durability, and reliability are critical. These tubes are widely used in heat exchangers, condensers, chemical processing, food processing, and general industrial applications.
What is ASTM A269 / ASME SA269?
ASTM A269 / ASME SA269 specifies seamless and welded austenitic stainless steel tubes for general service.
Tubes must meet mechanical properties, chemical composition, and corrosion resistance requirements as per ASTM/ASME standards.
They are available in a wide range of grades, finishes, and sizes to suit diverse industrial needs.
Common ASTM A269 / ASME SA269 Grades
| Grade | UNS Designation |
|---|---|
| TP304 | S30400 |
| TP304L | S30403 |
| TP304H | S30409 |
| TP304LN | S30453 |
| TP316 | S31600 |
| TP316L | S31603 |
| TP316H | S31609 |
| TP316LN | S31653 |
| TP316Ti | S31635 |
| TP317 | S31700 |
| TP317L | S31703 |
| TP321 | S32100 |
| TP321H | S32109 |
| TP347 | S34700 |
| TP347H | S34709 |
| TP348 | S34800 |
| TP348H | S34809 |
| 904L | N08904 |
| SMO 254 | S31254 |
| Alloy 20 | N08020 |
| XM-19 | S20910 |
| XM-10, XM-11, etc. | Various |
ASTM A269 TP304
ASTM A269 TP304L
ASTM A269 TP304H
ASTM A269 TP304LN
ASTM A269 TP316
ASTM A269 TP316L
ASTM A269 TP316H
ASTM A269 TP316LN
ASTM A269 TP316Ti
ASTM A269 TP317
ASTM A269 TP317L
ASTM A269 TP321
ASTM A269 TP321H
ASTM A269 TP347
ASTM A269 TP347H
ASTM A269 TP348H
ASTM A269 TP904L
ASTM A269 / ASME SA269 Sizes
Fractional sizes (inches)
| Outer Diameter (OD) | Average Wall (WT) | Inner Diameter (ID) | Tube Cross Sectional Area (in²) | Approx. Weight (lb/ft) |
|---|---|---|---|---|
| 1/4″ (0.250) | 0.020″ | 0.210″ | 0.0145 | 0.05 |
| 1/4″ (0.250) | 0.035″ | 0.180″ | 0.0236 | 0.08 |
| 3/8″ (0.375) | 0.035″ | 0.305″ | 0.0374 | 0.13 |
| 3/8″ (0.375) | 0.049″ | 0.277″ | 0.0502 | 0.17 |
| 1/2″ (0.500) | 0.035″ | 0.430″ | 0.0511 | 0.17 |
| 1/2″ (0.500) | 0.049″ | 0.402″ | 0.0694 | 0.24 |
| 1/2″ (0.500) | 0.065″ | 0.370″ | 0.0888 | 0.30 |
| 5/8″ (0.625) | 0.035″ | 0.555″ | 0.0649 | 0.22 |
| 5/8″ (0.625) | 0.049″ | 0.527″ | 0.0887 | 0.30 |
| 5/8″ (0.625) | 0.065″ | 0.495″ | 0.1144 | 0.39 |
| 3/4″ (0.750) | 0.035″ | 0.680″ | 0.0786 | 0.27 |
| 3/4″ (0.750) | 0.065″ | 0.620″ | 0.1399 | 0.48 |
| 1″ (1.000) | 0.035″ | 0.930″ | 0.1061 | 0.36 |
| 1″ (1.000) | 0.065″ | 0.870″ | 0.1909 | 0.65 |
| 1-1/4″ (1.250) | 0.065″ | 1.120″ | 0.2420 | 0.82 |
| 1-1/2″ (1.500) | 0.065″ | 1.370″ | 0.2930 | 1.00 |
Metric sizes (millimeters)
| Outer Diameter (OD) | Wall Thickness (WT) | Inner Diameter (ID) | Approx. Weight (kg/m) |
|---|---|---|---|
| 6.35 mm | 0.25 mm | 5.85 mm | 0.103 |
| 10 mm | 0.5 mm | 9.0 mm | 0.27 |
| 12.7 mm | 0.5 mm | 11.7 mm | 0.32 |
| 15.88 mm | 0.75 mm | 14.38 mm | 0.53 |
| 19 mm | 1 mm | 17 mm | 0.77 |
| 25.4 mm | 1.5 mm | 22.4 mm | 1.37 |
| 38.1 mm | 2 mm | 34.1 mm | 2.21 |
| 50.8 mm | 3 mm | 44.8 mm | 3.94 |
Key Characteristics of ASTM A269 / SA269 Tubes
Manufacturing Process: Seamless or welded austenitic stainless steel.
Surface Finish: Annealed, pickled, polished, or bright finish available.
Testing: Tubes undergo hydrostatic or nondestructive electric tests to ensure quality.
Certification: Supplied with complete test certificates and documentation as per ASTM/ASME standards.
Applications
Heat Exchangers & Condensers
Chemical & Petrochemical Processing
Food & Beverage Industry
Marine Environments
Pharmaceuticals & Biotechnology
General Industrial Service