ASTM A249 welded pipe Standard Specification.pdf
What is ASTM A249 standard?
ASTM A249 standard specification covers boiler and heat exchanger tubes designed with stainless steel. Common grades include TP304, TP309S, TP310S, TP316, and TP321, suitable for high-temperature environments such as superheaters and reheaters. Typical tube sizes and wall thicknesses are: inner diameter 3.2 mm to 12 inches (outer diameter 304.8 mm), wall thickness 0.015 to 0.320 inches (0.4 to 8.1 mm, inclusive). Other sizes are available, provided that such tubes meet all other requirements of this specification.
What is ASTM A249 Material Grades?
ASTM A249 and ASTM A269 Specifications indicate tube material is Austenitic Stainless Steel grades, which is wide used in stainless steel families, TP304, TP304L, TP316, TP316L, TP347, TP347H, TP321, TP321H, 904L grade is ideal material for various applications, they have some advantages that other steels do not have.
SA249 Stainless Steel ERW Tubes Equivalent
| EN-standard | EN Standard | SAE Grade | Unified Numbering System |
| X2CrNi18-9 | 1.4307 | 304L | S3043 |
| X2CrNi19-11 | 1.4306 | 304L | S30403 |
| X2CrNiN18-10 | 1.4311 | 304LN | S30453 |
| X5CrNi18-10 | 1.4301 | 304 | S30400 |
| X6CrNi18-11 | 1.4948 | 304H | S30409 |
| X22CrNi2520 | 1.4841 | 310 | S31000 |
| X 5 CrNi 2520 | 1.4845 | 310S | S31008 |
| X6CrNiTi18-10 | 1.4541 | 321 | S32100 |
| X12CrNiTi18-9 | 1.4878 | 321H | S32109 |
| X2CrNiMo17-12-2 | 1.4404 | 316L | S31603 |
| X5CrNiMo17-12-2 | 1.4401 | 316 | S31600 |
| X2CrNiMoN17-12-2 | 1.4406 | 316LN | S31653 |
| X2CrNiMo17-12-3 | 1.4432 | 316L | S31603 |
| X2CrNiMo18-14-3 | 1.4435 | 316L | S31603 |
| X3CrNiMo17-13-3 | 1.4436 | 316 | S31600 |
| X6CrNiMoTi17-12-2 | 1.4571 | 316Ti | S31635 |
| X2CrNiMoN17-13-3 | 1.4429 | 316LN | S31653 |
ASME SA 249 M Tubing Chemical Composition
| Grade | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel | Molybdenum |
| TP304 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | |
| TP304L | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | |
| TP316 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 |
| TP316L | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
ASTM A249 Stainless Steel Tubing Mechanical Properties
| Material | Tensile Strength | Heat | Temperure | Yield Strength | Elongation |
| Ksi (MPa), Min. | Treatment | Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| TP304 | 75(515) | Solution | 1900 (1040) | 30(205) | 35 |
| TP304L | 70(485) | Solution | 1900 (1040) | 25(170) | 35 |
| TP316 | 75(515) | Solution | 1900(1040) | 30(205) | 35 |
| TP316L | 70(485) | Solution | 1900(1040) | 25(170) | 35 |
Weight chart of ASTM A249 Tubing
| Outer Diameter in Inch | Weight per meter | Wall Thickness in MM | Outer Diameter in Inch | Weight meter | Wall Thickness in mm |
|---|---|---|---|---|---|
| 1/2 | 0.42 | 1.50 | 1 1/4 | 1.13 | 1.50 |
| 5/8 | 0.44 | 1.20 | 1 3/8 | 1.02 | 1.20 |
| 5/8 | 0.54 | 1.50 | 1 1/2 | 1.11 | 1.20 |
| 3/4 | 0.53 | 1.20 | 1 1/2 | 1.38 | 1.50 |
| 3/4 | 0.66 | 1.50 | 1 1/2 | 1.81 | 2.00 |
| 3/4 | 0.63 | 1.20 | 1 3/4 | 1.62 | 1.50 |
| 7/8 | 0.78 | 1.50 | 2 | 1.49 | 1.20 |
| 7/8 | 1.01 | 2.00 | 2 | 1.85 | 1.50 |
| 1 | 0.73 | 1.20 | 2 | 2.40 | 2.00 |
| 1 | 0.90 | 1.50 | 2 1/2 | 2.34 | 1.50 |
| 1 | 1.17 | 2.00 | 3 | 2.81 | 1.50 |
| 1 1/8 | 1.02 | 1.50 | 4 | 7.41 | 3.00 |
| 1 1/4 | 0.92 | 1.20 |
ASTM A249 Stainless Steel Tubing Heat Treatment Requirements
| Grade | UNS Designation |
Heat Treat Type | Austenitizing/ Solutioning Temperature, min or range °F [°C] | Cooling Media |
| TP304 | S30400 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP304L | S30403 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP304H | S30409 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP309S | S30908 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP309H | S30909 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP310S | S31008 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP310H | S31009 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP316 | S31600 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
| TP316L | S31603 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool |
What is the difference between ASTM A249 and A213?
The main difference is that ASTM A249 is for welded austenitic stainless steel tubes, while ASTM A213 is for seamless ferritic and austenitic alloy-steel tubes. Both are used for similar applications like boilers, superheaters, and heat exchangers, but A249 specifies welded construction, whereas A213 exclusively covers seamless tubes.
What is the difference between sa249 and SA269?
ASTM A249 and ASTM A269 specifications are two standards for Austenitic stainless steel tubes.
| Specification | ASTM A249 | ASTM 269 |
| Tube Manufacturing | Welded | Welded And Seamless |
| Application | Boiler Superheater Heat-Exchanger Condenser |
General Service |
| Sizes | OD: maximum 304.8 mm Wall Thickness: 0.4 – 8.1 mm |
Inside Diameter: minium 3.4 mm Wall Thickness: 0.51 mm |
| ASTM / ASME | ASTM A249 ASME SA249 |
ASTM A269 / A269M |
| Test | Flange Test | Flange Test |
