ASTM A249 / ASME SA249
ASTM A249 / ASME SA249 Welded Austenitic Stainless Steel Tubes
Emirerri Steel is a leading supplier and exporter of ASTM A249 / ASME SA249 welded stainless steel tubes, manufactured for high-temperature and general service applications. These tubes are widely used in boilers, heat exchangers, superheaters, and condensers, where corrosion resistance, strength, and reliability are essential.
About ASTM A249 / ASME SA249
ASTM A249 / ASME SA249 is the standard specification for welded tubes of nominal wall thickness and heavily cold-worked welded tubes made from austenitic stainless steels.
The tubes are manufactured for pressure equipment and high-temperature service.
Supplied in multiple grades, they provide excellent corrosion resistance, mechanical strength, and thermal stability.
Standard Grades
TP304: Standard austenitic stainless steel grade.
TP304L: Low-carbon version of 304, excellent for welded structures.
TP309S: Austenitic chromium-nickel steel with superior oxidation resistance.
TP310S: High-temperature austenitic chromium-nickel steel.
TP316: Molybdenum-bearing grade, enhanced corrosion resistance.
TP316L: Low-carbon version of 316, ideal for welded applications.
TP317: Higher molybdenum content for superior corrosion resistance.
TP317L: Low-carbon version of 317 with improved weldability.
TP321: Titanium-stabilized grade, excellent for high-temperature use.
TP347: Niobium (columbium)-stabilized austenitic steel.
TP348: Stabilized with niobium and tantalum, designed for elevated temperatures.
High-Temperature Grades
TP304H
TP309H
TP309HCb
TP310H
TP310HCb
TP316H
TP321H
TP347H
TP348H
Types of ASTM A249 Stainless Steel Tube
Welded Tubes – Produced by welding stainless steel strips, suitable for general service and moderate temperature use.
Heavily Cold Worked Tubes – Subjected to additional cold working to enhance mechanical strength and dimensional accuracy.
Seamless Equivalent (on demand) – Although A249 primarily covers welded tubes, seamless alternatives (like ASTM A213) are supplied for critical high-pressure applications.
Polished Tubes – With surface finishes such as mirror, satin, or matte polish, ideal for decorative and sanitary industries.
Heat Exchanger Tubes – Designed specifically for condensers, boilers, and heat exchangers, ensuring efficient heat transfer.
Instrumentation Tubes – Precision tubes with tight tolerances for control systems and instrumentation lines.
High-Temperature Tubes – Modified “H” grades (e.g., TP304H, TP310H, TP347H) used in superheaters and reheaters at elevated temperatures.
Sizes
ASTM A249 Welded Mirror Polished Tube
| O/D | Wall | Weight per | O/D | Wall | Weight per |
|---|---|---|---|---|---|
| (ins) | (mm) | metre (kg) | (ins) | (mm) | metre (kg) |
| 1/2 | 1.50 | 0.42 | 1 1/4 | 1.50 | 1.13 |
| 5/8 | 1.20 | 0.44 | 1 3/8 | 1.20 | 1.02 |
| 5/8 | 1.50 | 0.54 | 1 1/2 | 1.20 | 1.11 |
| 3/4 | 1.20 | 0.53 | 1 1/2 | 1.50 | 1.38 |
| 3/4 | 1.50 | 0.66 | 1 1/2 | 2.00 | 1.81 |
| 3/4 | 1.20 | 0.63 | 1 3/4 | 1.50 | 1.62 |
| 7/8 | 1.50 | 0.78 | 2 | 1.20 | 1.49 |
| 7/8 | 2.00 | 1.01 | 2 | 1.50 | 1.85 |
| 1 | 1.20 | 0.73 | 2 | 2.00 | 2.40 |
| 1 | 1.50 | 0.90 | 2 1/2 | 1.50 | 2.34 |
| 1 | 2.00 | 1.17 | 3 | 1.50 | 2.81 |
| 1 1/8 | 1.50 | 1.02 | 4 | 3.00 | 7.41 |
| 1 1/4 | 1.20 | 0.92 |
Heat-Exchanger Dull Polished Tube
| Dimensions | Wall | Weight per | Dimensions | Wall | Weight per | |
|---|---|---|---|---|---|---|
| (mm) | (mm) | metre (kg) | (mm) | (mm) | metre (kg) | |
| 12.7 x 12.7 | 1.20 | 0.44 | 40 x40 | 1.20 | 1.49 | |
| 12.7 x 12.7 | 1.50 | 0.55 | 40 x40 | 1.50 | 1.85 | |
| 15 x 15 | 1.20 | 0.53 | 40 x40 | 2.00 | 2.45 | |
| 15 x 15 | 1.50 | 0.65 | 40 x40 | 3.00 | 3.75 | |
| 20 x 20 | 1.20 | 0.71 | 50 x50 | 1.50 | 2.32 | |
| 20 x 20 | 1.50 | 0.88 | 50 x50 | 2.00 | 3.08 | |
| 20 x 20 | 2.00 | 1.19 | 50 x50 | 3.00 | 4.65 | |
| 25 x 25 | 1.20 | 0.92 | 60 x60 | 2.00 | 3.71 | |
| 25 x 25 | 1.50 | 1.14 | 60 x60 | 3.00 | 5.49 | |
| 25 x 25 | 2.00 | 1.49 | 70 x70 | 3.00 | 6.53 | |
| 25 x 25 | 3.00 | 2.20 | 80 x80 | 2.00 | 4.98 | |
| 30 x 30 | 1.20 | 1.10 | 80 x80 | 3.00 | 7.53 | |
| 30 x 30 | 1.50 | 1.37 | 100 x 100 | 2.00 | 6.40 | |
| 30 x 30 | 2.00 | 1.84 | 100 x 100 | 3.00 | 9.53 | |
| 30 x 30 | 3.00 | 2.72 | ||||
Welded Unpolished Tube
| Dimensions (mm) | Wall (mm) | Weight per metre (kg) | Dimensions (mm) | Wall (mm) | Weight per metre (kg) |
|---|---|---|---|---|---|
| 12.7 x 12.7 | 1.20 | 0.44 | 120 x 120 | 5.00 | 18.66 |
| 12.7 x 12.7 | 1.50 | 0.55 | 120 x 120 | 6.00 | 21.20 |
| 40 x 40 | 4.00 | 4.80 | 150 x 150 | 4.00 | 18.60 |
| 50 x 50 | 4.00 | 5.96 | 150 x 150 | 5.00 | 23.00 |
| 50 x 50 | 5.00 | 7.41 | 150 x 150 | 6.00 | 31.20 |
| 60 x 60 | 4.00 | 7.22 | 150 x 150 | 8.00 | 34.30 |
| 60 x 60 | 5.00 | 8.90 | 150 x 150 | 10.00 | 41.65 |
| 80 x 80 | 4.00 | 9.82 | 200 x 200 | 5.00 | 30.80 |
| 80 x 80 | 5.00 | 12.39 | 200 x 200 | 6.00 | 36.90 |
| 100 x 100 | 4.00 | 12.40 | 200 x 200 | 8.00 | 47.25 |
| 100 x 100 | 5.00 | 15.38 | 200 x 200 | 10.00 | 57.60 |
| 100 x 100 | 6.00 | 17.50 | 250 x 250 | 8.00 | 59.90 |
| 100 x 100 | 8.00 | 21.60 | 250 x 250 | 10.00 | 73.50 |
Handrail Section, Welded, Unannealed (Dull Polished)
| O/D | Wall | Weight per | O/D | Wall | Weight per |
|---|---|---|---|---|---|
| (mm) | (mm) | metre (kg) | (in) | (mm) | metre (kg) |
| 42.40 | x 2.5 | 2.49 | 1 1/2 | 3.00 | 2.62 |
| 48.30 | x 2.5 | 2.86 | 2 | 3.00 | 3.57 |
| 60.30 | x 2.5 | 3.61 | 3 | 3.00 | 5.47 |
| 4 | 3.00 | 7.38 |
Tube Welded Unpolished
| Dimensions (mm) | Wall (mm) | Weight per metre (kg) | Dimensions(mm) | Wall (mm) | Weight per metre (kg) |
|---|---|---|---|---|---|
| 80 x 40 | 4.00 | 7.22 | 150 x 100 | 4.00 | 15.40 |
| 80 x 40 | 5.00 | 8.90 | 150 x 100 | 5.00 | 18.80 |
| 100 x 50 | 4.00 | 9.09 | 150 x 100 | 6.00 | 22.60 |
| 100 x 50 | 5.00 | 11.30 | 150 x 100 | 8.00 | 27.90 |
| 120 x 60 | 3.00 | 8.39 | 200 x 100 | 4.00 | 18.60 |
| 120 x 60 | 4.00 | 11.10 | 200 x 100 | 5.00 | 22.60 |
| 120 x 60 | 5.00 | 13.75 | 200 x 100 | 6.00 | 27.40 |
| 120 x 80 | 3.00 | 9.54 | 200 x 100 | 8.00 | 34.30 |
| 120 x 80 | 4.00 | 12.40 | 200 x 100 | 10.00 | 41.65 |
| 120 x 80 | 5.00 | 15.38 | 200 x 150 | 6.00 | 36.90 |
| 150 x 50 | 3.00 | 9.53 | 200 x 150 | 8.00 | 41.34 |
| 150 x 50 | 5.00 | 15.38 | 300 x 100 | 8.00 | 47.25 |
| 150 x 80 | 3.00 | 10.70 | 250 x 150 | 6.00 | 36.90 |
| 150 x 100 | 3.00 | 11.70 | 250 x 150 | 8.00 | 47.25 |
ASTM A249 Rectangular 304 Stainless Steel Tube Welded Dull Polished
| Dimensions (mm) | Wall (mm) | Weight per metre (kg) | Dimensions (mm) | Wall (mm) | Weight per metre (kg) |
|---|---|---|---|---|---|
| 20 x 10 | 1.50 | 0.44 | 60 x 40 | 2.00 | 3.08 |
| 30 x 10 | 1.20 | 0.71 | 60 x 40 | 3.00 | 4.65 |
| 30 x 10 | 1.50 | 0.90 | 80 x 40 | 1.50 | 2.80 |
| 30 x 15 | 1.50 | 0.76 | 80 x 40 | 2.00 | 3.71 |
| 30 x 20 | 1.50 | 1.14 | 80 x 40 | 3.00 | 5.49 |
| 40 x 15 | 1.50 | 1.25 | 80 x 40 | 4.00 | 7.22 |
| 40 x 20 | 1.20 | 1.10 | 80 x 40 | 5.00 | 8.94 |
| 40 x 20 | 1.50 | 1.37 | 80 x 60 | 3.00 | 6.53 |
| 40 x 20 | 2.00 | 1.84 | 100 x 40 | 1.50 | 3.29 |
| 50 x 25 | 1.20 | 1.41 | 100 x 40 | 3.00 | 6.53 |
| 50 x 25 | 1.50 | 1.75 | 100 x 50 | 2.00 | 4.68 |
| 50 x 25 | 2.00 | 2.31 | 100 x 50 | 3.00 | 6.95 |
| 50 x 25 | 3.00 | 3.75 | 100 x 50 | 4.00 | 9.09 |
| 50 x 30 | 1.50 | 1.85 | 100 x 50 | 5.00 | 11.30 |
| 50 x 30 | 3.00 | 3.61 | 100 x 60 | 3.00 | 7.53 |
| 60 x 20 | 1.50 | 1.85 | 120 x 60 | 3.00 | 8.12 |
| 60 x 20 | 2.00 | 2.45 | 120 x 80 | 3.00 | 9.53 |
| 60 x 30 | 2.00 | 2.80 | 150 x 100 | 3.00 | 11.70 |
| 60 x 30 | 3.00 | 4.13 | 150 x 100 | 5.00 | 18.80 |
| 60 x 40 | 1.50 | 2.32 |
Key Features of ASTM A249 / ASME SA249 Tubes
Manufacturing Process: Welded and heavily cold-worked for enhanced strength.
Applications: Boilers, condensers, superheaters, and heat exchangers.
Corrosion Resistance: Excellent resistance to oxidation, scaling, and general corrosion.
Certification: Supplied with complete test certification as per ASTM / ASME requirements.
Surface Finish: Pickled, polished, bright annealed, or custom finishes available.
Specifications
Standard: ASTM A249 / ASME SA249
Size Range: OD 6.35 mm – 101.6 mm (1/4” – 4”)
Wall Thickness: 0.8 mm – 12 mm
Length: Up to 30 meters (as required)
Types: Welded, Heavily Cold Worked
Delivery Condition: Annealed or Cold Worked
Applications
Boilers & Pressure Vessels
Superheaters & Reheaters
Heat Exchangers & Condensers
Petrochemical & Power Plants
Food Processing & Chemical Industries