What is SA 249 TP 304 material?
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What is ASTM A249?
ASTM A249 is the standard specification for welded austenitic steel tubes used in boilers, superheaters, heat exchangers, and condensers. The tubes covered by this specification must be welded, then cold worked to achieve the required properties, and finally heat treated (annealed) to stabilize their microstructure.
What is SA 249 TP 304 material?
ASME SA 249 TP 304 material refers to welded stainless steel tubing that conforms to the ASME SA 249 standard and the 304 grade of austenitic stainless steel. This material, also known as TP304, is an alloy of chromium and nickel known for its excellent corrosion resistance, high strength, and superior formability, making it suitable for critical applications like heat exchangers, boilers, condensers, and chemical processing equipment.
Specification of ASTM A249 TP304L Tube
| Specification | ASTM A249 Tp304L / ASME SA249 Tp304L Tube |
| Shapes | Hydraulic, Honed Tubes, Round, Rectangular, U Shape, Square, Straight, Coiled, Pan Cake Coils |
| Technique | Cold rolled, Extrusion, Cold drawn, Hot rolled Tube |
| Manufacturing Type | Welded / CDS / CDW / ERW / Fabricated / Seamless / DOM / CEW / 100% X Ray Welded |
| Surface Finish | 400G, BA, 2B, 320G, Mirror Polished, No.1, 400G Satin/ Hairline, |
| Thickness Range | SCH 5, SCH XXS, SCH 40, SCH 80S, SCH 10, SCH XXH, SCH XS, SCH 160, SCH 80 |
| End | Beveled End, Treaded, Plain End |
Chemical Composition of ASTM A249 304 Stainless Steel Tube
| GRADES | UNS | Cr | S | Ni | C | Si | Mn | P |
|---|---|---|---|---|---|---|---|---|
| TP304 | S30400 | 18.0-20.0 | 0.03 | 8.0-11.0 | 0.08 | 1 | 2 | 0.045 |
SA 249 TP 304 Welded Tube Mechanical Properties
| Material | Temperure | Tensile Strength | Yield Strength | Heat | Elongation %, Min |
|---|---|---|---|---|---|
| Min.º F(º C) | Ksi (MPa), Min. | Ksi (MPa), Min. | Treatment | ||
| TP304 | 1900 (1040) | 75(515) | 30(205) | Solution | 35 |
ASME SA 249 304 Cold Drawn ERW Tube Physical Properties
| Grade | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Density (kg/m3) | Electrical Resistivity (nΩ.m) | Elastic Modulus (GPa) | Specific Heat 0-100°C (J/kg.K) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 8000 | 720 | 193 | 500 |
GNEE Stainless Steel is a manufacturer, supplier, and exporter of ASTM A249 TP304 stainless steel. The ASTM A249 TP304 specification covers nominal wall thickness welded and heavily cold-worked austenitic steel pipes. Our ASTM A249 welded pipes are primarily used for boiler, heat exchanger, superheater, and condenser tubes.
GNEE is China's largest supplier of ASTM A249 TP304 stainless steel. Our product line includes ASTM A249 TP304 stainless steel square tubes, ASTM A249 TP304 stainless steel rectangular tubes, ASTM A249 TP304 stainless steel oval tubes, ASTM A249 TP304 heat exchanger tubes, ASTM A249 TP304 stainless steel condenser tubes, ASTM A249 TP304 superheater tubes, and ASTM A249 TP304 stainless steel round tubes. We can customize various shapes to meet customer requirements, offering competitive pricing and market-leading performance. Contact us directly from the leading supplier of ASTM A249 TP304 pipe, serving 60 countries including South Africa, Spain, UAE, and Cyprus.
Packing and Marking
Packed in bundles or ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.
