Refinery Heat Exchanger TP304 U Bend Tube

TP304 U-Bend Pipes with 515MPa Tensile Strength | Hydraulic Tested & Eddy Current Inspected

 1. Introduction

ASTM A213 TP304 U-tube is an austenitic stainless steel seamless tube designed for high-temperature and high-pressure equipment. It is widely used in key components such as boilers, heat exchangers, and condensers. TP304 stainless steel has excellent corrosion resistance and high-temperature strength. Its U-shaped bending structure can effectively absorb thermal expansion stress and is suitable for complex piping systems. The material complies with the ASME SA-213 standard, ensuring reliability and long life under extreme working conditions.

2. Chemical composition of TP304(%)

3. Mechanical properties of TP304

• Tensile strength: ≥515 MPa (measured value: 520-620 MPa)

• Yield strength: ≥205 MPa (measured value: 210-310 MPa)

• Elongation (50mm gauge length): ≥35% (measured: 40-50%)

• Hardness: ≤90 HRB / ≤201 HB (typical value: 85 HRB)

• Impact toughness (-196°C): ≥100 J (meets low temperature application requirements)

4. Physical properties of TP304

5. Application fields of TP304 U Bend Tube

• Power industry:

Supercritical power plant boiler superheater, nuclear power plant steam generator U-tube bundle.

• Petrochemical:

Heat exchange tubes of hydrogenation reactor, convection section coils of cracking furnace.

• Food and pharmaceutical:

High temperature sterilization pipelines, CIP (cleaning in place) system elbows.

• Ship and marine engineering:

Desalination plant, LNG ship low temperature pipeline.

• New energy:

Solar thermal power generation collector tube, fuel cell cooling circuit.

6. Additional instructions of TP304 U Bend Tube

Packaging: wooden box, shockproof packaging, inner wall PE film moisture-proof, port cover dustproof.

Delivery period: regular specifications are sufficient in stock, and the delivery period of customized U-tubes is 15-30 days.