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ASTM A249 TP304, 1.4301 Bright Annealed Stainless Steel Welded Tube For Heat Exchanger
ASTM A249 TP304 is a standard specification for welded austenitic steel boiler, superheater, heat-exchanger, and condenser tubes. It specifies the requirements for tubes to be used in high-temperature services. ASTM A 249 TP304 Material offers good corrosion resistance. Due to the titanium content in ASTM A 249 TP304 ERW Tube, it’s immune to precipitation. The titanium content in the ASTM A249 TP304 SS Tube stabilizes the tube structure at 800 degrees C.
Specifications:
| Specification | ASTM A249, ASME SA249 |
| Manufacturing Type | ERW / Welded / Fabricated / CDW / DOM / CEW / 100% X Ray Welded |
| Delivery Condition | Annealed and Pickled (AP), Polished, Bright Annealed (BA), Cold Drawn, MF |
| Surface Finish | BA, 2B, No.4, No.1, No.3, No.8, 8K, HL, 2D, 1D, Mirror Polished, 180G, 320G, 400G Satin/ Hairline, 400G, 500G, 600G or 800G Mirror finish ASME SA249 Standard Tubing or Custom Finish as per customer's specification |
| OD | 6 to 304.8 mm |
| WT | 0.5 to 6 mm |
| Standard | SUS, JIS, AISI, ASTM, GB, DIN, EN |
| Processing | Bending, Welding, Decoiling, Punching, Cutting, Moulding |
| Technique | Cold drawn, Cold rolled, Hot rolled, Extrusion Tube |
| Tolerance | OD: +/- 0.2mm WT: +/- 10% OR as customer request Length: +/- 10mm |
Features:
Good corrosion resistance: TP304 stainless steel tubes are resistant to corrosion in various environments, including mildly corrosive environments.
High temperature resistance: These tubes can withstand high temperatures without losing their structural integrity.
Weldability: ASTM A249 TP304 tubes are easily welded using common welding techniques, making them suitable for a wide range of applications.
Excellent mechanical properties: TP304 stainless steel tubes exhibit good strength and ductility, making them ideal for use in high-pressure and high-temperature applications.
Versatility: These tubes are commonly used in boiler, superheater, heat exchanger, and condenser applications in various industries such as chemical, petrochemical, food processing, and pharmaceutical industries.
Equivalent Grades:
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
Chemical Composition:
| C | Si | Mn | Cr | Ni | S | P | Fe |
| 0.08 | 1 | 2 | 18 – 20 | 8 – 11 | 0.03 | 0.045 | Bal. |
Mechanical Properties:
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Applications:
Petrochemical Industries
Power Generation Industries
Food Processing Industries
Oil & Gas Processing Industries
Fertilizers Industries
Chemical Industries
Sugar Industries
Construction
Pharmaceuticals
Water treatment plants
