Yuhong Group Co., Ltd. is a specialized manufacturer and global supplier of heavy-duty industrial fasteners, pipe support systems, and precision components for pressure equipment. Operating through www.tema-heatexchanger.com, we supply custom industrial U-bolts engineered to withstand severe thermal expansion, high mechanical vibration, and corrosive process environments in oil refining, petrochemical, and power generation facilities.
Whether you are securing a u tube bundle inside a high-pressure shell and tube heat exchanger, anchoring an air cooler finned tube bundle, or procuring complete replacement hardware alongside a custom heat exchanger tubesheet, Yuhong Group delivers certified, precision-threaded U-bolt assemblies.

Our custom U-bolts and piping support clamps are manufactured according to DIN, ASME/ANSI B18.31.5, and MSS SP-58 standards to meet varied industrial piping and bundle fixing requirements:

• Standard Round Bend U-Bolts: Designed for securing process piping, tubing runs, and cylindrical pressure equipment.
• Long Shank & Extended Leg U-Bolts: Custom-manufactured to accommodate heavy thermal insulation, guide plates, and thick baffle plates inside a shell & tube heat exchanger.
• Square Bend & Square Corner U-Bolts: Engineered for structural channel frames, air-cooled heat exchanger supports, and box headers.
• Neoprene / Thermoplastic Coated U-Bolts: Features anti-vibration insulation sleeves to prevent galvanic corrosion and wear between dissimilar metals.

To prevent stress corrosion cracking (SCC) and thread galling under severe operating conditions, Yuhong Group enforces strict raw material traceability and performing 100% Positive Material Identification (PMI) testing prior to shipment:

We provide fully assembled U-bolt fastener sets to ensure rapid installation during turnarounds and maintenance shutdowns:

1. 100% PMI Material Verification: Every batch of stainless steel and alloy U-bolts undergoes handheld XRF spectroscopy inspection to guarantee exact chemical composition (Cr, Ni, Mo content).
2. Precision Threading & Anti-Galling: Rolled threads engineered for uniform load distribution and smooth engagement, minimizing thread seizure under high torque.
3. Severe Duty Vibration Resistance: Double-nut locking mechanisms safeguard internal u tube bundle structures against flow-induced vibration (FIV).
4. Protective Packaging: All threaded ends and polished shanks are encased in protective mesh sleeves to ensure zero thread deformation during transatlantic shipping.

When specifying custom U-bolts for a shell and tube heat exchanger or air cooler support frame, process engineers and procurement specialists should evaluate these critical technical factors:

• Thermal Expansion Differential: Carbon steel shells expand at different rates than stainless or nickel alloy tube bundles. U-bolts used as tube guides must allow axial sliding clearance to prevent tube buckling during thermal cycling.
• Galvanic Corrosion Protection: When securing a copper alloy or stainless steel tube bundle to carbon steel baffle plates, non-conductive isolation pads or coated U-bolts must be used to prevent galvanic corrosion.
• Thread Engagement & Double-Nutting: In high-vibration applications, ensure thread length accommodates two heavy hex nuts plus a washer with a minimum of 2-3 full threads protruding.

Need high-grade SS316/Alloy U-bolts, custom u tube bundle supports, or precision heat exchanger tubesheet fabrications?
Contact the Yuhong Group technical sales team today:

• Email: jimmy@steelseamlesspipe.com
• Official Website: www.tema-heatexchanger.com
• Company: Yuhong Group Co., Ltd.