ASME SB127 Monel 400 Clad Tube Sheet Finned Tube Bundle for Tema Heat Exchanger

Yuhong Holding Group is a premier global manufacturer and exporter specializing in industrial pressure equipment and heat transfer solutions. Founded in 1999, the company operates state-of-the-art production bases in Jiangyin, Jinjiang, and Yancheng, encompassing over 184,000 square meters of workshop area. Accredited with ASME U, U2, NB, and ISO 9001/14001/45001 certifications, Yuhong supplies high-integrity heavy-duty components for demanding oil, gas, petrochemical, and power generation industries worldwide.

• Traceability: All pressure-retaining parts of the finned tube bundle structure feature mill test reports (MTRs) with complete chemical and physical property tracking per ASME Sec. II.
• Monel 400 Cladding Technology: High-integrity bonding between SA516 Gr. 70 base plate and ASME SB127 Monel 400 cladding layer to withstand sour overhead condenser corrosion.
• Precision Depth Tube Expansion: Double-grooved, full-depth tube rolling and expansion executed strictly to detail B/C specs on drawing E2-1566 / E1-9277.
• ASME Section IX Welding: Corrosion-resistant Monel overlay and shell-to-tubesheet joint welds performed under qualified WPS and PQR standards.
• Gasket Sealing Geometry: Precision-machined serrated faces paired with Monel 400 grooved gaskets with EG layers to prevent process fluid leakage in the TEMA heat exchanger.

• NDT & Radiographic Testing: 100% Radiographic Testing (RT) on shell longitudinal/circumferential welds and Liquid Penetrant Testing (PT) on Monel clad weld overlays.
• Ultrasonic Inspection (UT): Mandatory UT lamination checks on all ASME SB127 Monel 400 plates and base materials prior to machining.
• Workshop Pressure Test: High-pressure hydrostatic testing on both shell side and tube side witnessed by qualified inspection authorities.
• QA Documentation: Package includes full MTRs, NDT records, WPS/PQR, tube expansion logs, and Hydrostatic Test Certificates.

• Export Preservation: Internal nitrogen purging / anti-corrosion oil film protection for Monel clad tube sheets and seamless tube internals.
• Heavy-Duty Seaworthy Packaging: Securely anchored in custom wooden crates with steel frame bracing for safe maritime freight.
• Field Verification Markings: External panels clearly show project tags (W-04A/B), net weight, center of gravity, and lifting points for refinery site handling.