ASME SA213 T11 Alloy Steel Heat Exchanger Tube For Chemical Processing

ASME SA213 T11 alloy steel tubes are seamless, high-strength components optimized for moderate high-temperature environments (≤593°C). Their Cr-Mo composition balances oxidation resistance, creep strength, and fabricability, making them ideal for heat exchangers in power and petrochemical sectors. Compliance with rigorous ASME standards ensures reliability under demanding operational conditions.

Material Composition:

• Carbon (C): 0.05–0.15%

• Manganese (Mn): 0.30–0.60%

• Phosphorus (P): ≤0.025%

• Sulfur (S): ≤0.025%

• Silicon (Si): 0.50–1.00%

• Chromium (Cr): 1.00–1.50%

• Molybdenum (Mo): 0.44–0.65%

Mechanical Properties:

• Tensile Strength: ≥415 MPa (60,200 psi)

• Yield Strength: ≥205 MPa (29,700 psi)

• Elongation: ≥30% (in 2 inches)

• Hardness: ≤85 HRB (Rockwell B)

Testing and Certification:

• Hydrostatic Testing: Pressurized to 70 MPa (10,000 psi) to ensure leak resistance.

• Non-Destructive Testing (NDT): Eddy current or ultrasonic testing for surface/sub-surface defects.

• Certification: Material Test Reports (MTRs) validate compliance with ASME SA213 and ASTM A213 standards.

Dimensional Specifications:

• Outer Diameter (OD): 6.35–127 mm (0.25–5 inches)

• Wall Thickness: 0.5–12.7 mm (0.02–0.5 inches)

• Length: Customizable, typically up to 12 meters.

• Tolerances: Strict adherence to ASME standards for OD (±0.8%) and wall thickness (±10%).

Applications:

1.Power Generation Plants:

Boilers and Superheaters: SA213 T11 tubes are widely used in power plants, particularly in boiler tubes, superheaters, and reheaters where high temperatures and pressures are common. These tubes are capable of handling steam at high temperatures (up to 550°C or 1022°F) and pressures, making them suitable for power station applications.

Heat Recovery Steam Generators (HRSGs): In combined cycle power plants, T11 alloy steel tubes are used in HRSGs to capture waste heat from gas turbines and convert it into steam, improving overall energy efficiency.

2.Chemical and Petrochemical Industries:

Heat Exchangers: T11 alloy steel tubes are commonly used in industrial heat exchangers where fluids of different temperatures need to exchange heat efficiently. Their resistance to high temperatures and corrosive environments makes them ideal for petrochemical processes, including distillation, cracking, and refining.

Furnace and Reactor Tubes: In petrochemical plants, T11 tubes are used in high-temperature furnace sections and reactors where the material's ability to withstand thermal cycling and oxidation is crucial.

3.Refineries:

Crude Oil Distillation: SA213 T11 tubes are used in the heat exchangers and distillation towers within refineries, where they need to withstand high temperatures and pressure while maintaining corrosion resistance.

Hydroprocessing Units: The tubes are also utilized in reactors and heat exchangers in hydroprocessing units, where they provide stable performance under extreme conditions.