ASME SA213 TP316L Corrosion Resistant Heat Exchanger Tube Bundle with SA350 LF2 Tubesheet

The ASME SA213 TP316L heat exchanger tube bundle is a direct-fit, high-performance replacement core for shell and tube heat exchangers. Engineered for demanding process conditions, this bundle combines the corrosion resistance of low-carbon 316L stainless steel seamless tubes with the low-temperature toughness of an SA350 LF2 forged tubesheet. The assembly is designed for drop-in compatibility with existing exchanger shells, maintaining the original tube count, diameter, length, and baffle pattern to eliminate field modification.

• Chemical composition: C ≤ 0.035%, Cr 16.0-18.0%, Ni 10.0-14.0%, Mo 2.0-3.0%
• Tensile strength: ≥ 485 MPa; Yield strength (min): 170 MPa; Elongation: ≥ 35%
• Manufactured by seamless process - hot finished or cold finished, solution annealed
• Size range: OD 1⁄8 in [3.2 mm] to 5 in [127 mm]; wall thickness 0.015 to 0.500 in [0.4 to 12.7 mm]

• Carbon steel and low-alloy steel forging specification for low-temperature services
• Yield strength min: 240-250 MPa; Tensile strength: 480-655 MPa
• Impact test temperature: -45°C
• Suitable for moderate-pressure,中小-sized heat exchanger applications

This tube bundle is specified for shell and tube heat exchangers, condensers, and boilers across:

• Oil & Gas Processing - Refinery units, hydrocarbon cooling, and gas treatment
• Petrochemical & Chemical Processing - Corrosive media handling, organic acids, and chlorides
• Power Generation - Condenser bundles, feedwater heaters
• Pharmaceutical & Food Processing - Sterile heat transfer applications
• Marine & Coastal Installations - Seawater-cooled exchangers

Corrosion Resistance: The 2.0-3.0% molybdenum content in TP316L provides enhanced resistance to pitting and crevice corrosion in chloride environments, outperforming TP304L in aggressive media.

Low-Temperature Toughness: SA350 LF2 tubesheet maintains impact resistance at sub-zero temperatures (as low as -45°C), preventing brittle failure in cryogenic or winterized services.

Thermal Compatibility: The seamless tube construction and solution-annealed condition ensure consistent mechanical properties across the operating temperature range.

• Tube dimensions (OD, wall thickness, length) per drawing
• Tubesheet overlay cladding with SS316L or other corrosion-resistant alloys
• Baffle spacing and layout optimized for thermal duty and pressure drop
• Compliance with ASME U-Stamp, TEMA, and EN 13445 standards

When to specify TP316L: Applications involving chlorides, seawater, organic acids, or any corrosive media where service life extension justifies the material premium.