Carbon Steel Heat Exchanger Tube Bundle with ASME SA179 Tubes and SA266 Gr.2 Tubesheet - Direct Replacement for Shell & Tube Heat Exchangers
Price:
NEGOCIATED
MOQ:
1 SET
Delivery Time:
20-80 DAYS
Brand:
YUHONG
Product Description
Carbon Steel Heat Exchanger Tube Bundle | ASME SA179 Tubes & SA266 Gr.2 Tubesheet | Direct Replacement for Shell & Tube Heat Exchangers – Easy Maintenance
Complete Heat Exchanger Solutions
Yuhong Group Co., Ltd. supplies high-quality thermal equipment including shell & tube heat exchangers (TEMA heat exchanger designs), pressure vessels, air coolers - and every critical internal component. We deliver ASME-compliant parts that restore performance and extend equipment life.
Product Focus: Carbon Steel Tube Bundle
The carbon steel tube bundle is the removable core of a shell & tube heat exchanger, consisting of ASME SA179 seamless tubes, SA266 Gr.2 forged tubesheet, baffles, tie rods, and spacers. Designed as a direct drop-in replacement for existing units in non-corrosive or mildly corrosive services.
Key Components & Their Roles
| Component | Material (Typical) | Role in Equipment Performance |
|---|---|---|
| Heat Exchanger Tube | ASME SA179 (carbon steel) | Carries tube-side fluid; primary heat transfer surface. Typically hundreds of tubes per bundle. |
| Fin Tube (optional) | Carbon steel + aluminum fin | Increases surface area by 3-5* for gas or low-HTC fluids, boosting heat transfer without resizing the shell. |
| Furnace Tube | Heavy-wall chrome-moly (P5, P9) | For high-temperature sections; resists creep and oxidation in waste heat recovery applications. |
| Heat Exchanger Tubesheet | SA266 Gr.2 forged | Holds all tubes; separates shell-side from tube-side fluid. Precision-drilled for leak-tight tube rolling. |
| Baffles | SA516 Gr.70 | Direct shell-side flow across tubes, support tubes against vibration, increase turbulence. |
| Tie Rods & Spacers | Carbon steel (SA193 B7) | Hold baffles at correct spacing; ensure bundle rigidity during shipping and operation. |
| Sealing Strips | Carbon steel | Block shell-side fluid from bypassing the bundle periphery; maximize thermal efficiency. |
Benefits of New Carbon Steel Tube Bundles
- Restores original heat duty after years of fouling, corrosion, or erosion
- Eliminates costly repairs of old bundles with plugged tubes or damaged components
- Upgrade opportunity - improved materials or enhanced fin tubes for higher capacity
- Fast turnaround - manufacturing to your specifications in 4-6 weeks
Technical Excellence
- Precision tube-to-tubesheet joints: Hydraulic rolling + optional seal welding for leak-proof connections
- Impingement protection: Stainless steel impingement plate for high-velocity inlet streams
- Vibration-resistant design: Optimized baffle spacing to prevent tube fretting and fatigue
- Full material traceability: Mill Test Certificates (MTC) for all components
When to Replace Your Tube Bundle
| Situation | Repair Viable? | Why Replace Instead |
|---|---|---|
| <5% tubes plugged | Yes, repair acceptable | Replacement not yet justified |
| 5-15% tubes plugged | Borderline | Loss of surface area reduces duty; replacement restores original performance |
| >15% tubes plugged | No | Significant duty loss; future plugging will accelerate |
| Tubesheet face corroded/grooved | No | New tubes will not seal properly against old tubesheet |
| Frequent tube leaks near inlet | No | Impingement erosion - design flaw requiring proper impingement plate |
Proactive Replacement Indicators
- Rising pressure drop (tube side or shell side) by >30% above clean baseline
- Exit temperatures moving away from design values despite normal flow rates
- Visible weeping at tube-to-tubesheet joints (dye penetrant test)
- Vibration noise or tube fretting marks at baffle supports
Carbon Steel Advantages
- Most economical material for clean water, steam, light hydrocarbons
- Easy to fabricate - short lead times
- Fully repairable - carbon steel tubes can be re-rolled or seal-welded in the field
- Proven longevity - 15-20 years with proper water treatment
Customization & Component Supply
We provide individual parts for your own assembly:
- Tube bundles - any material (carbon, stainless, nickel alloy, copper alloy, finned tubes)
- Heat exchanger tubes - cut-to-length, with or without end preparation
- Fin tubes - extruded or wrapped fins for air coolers or waste heat recovery
- Tubesheets - drilled, grooved, ready for tube expansion
- Baffles & tie rods - machined to your exact pattern
Typical Applications
- Power plants: Generator air cooler bundles, lube oil cooler bundles
- Petrochemical refineries: Crude preheat exchanger bundles, gas cooler bundles
- Compressor stations: Intercooler and aftercooler bundles
- HVAC: Steam-to-water converter bundles, condenser bundles
- Marine (closed loop): Central cooler bundles (freshwater side)
Request a Quotation - With or Without Drawing
Send your old bundle drawing, field sketch, or heat exchanger model number to jimmy@steelseamlesspipe.com. We will:
- Review dimensions, tube count, and baffle layout
- Propose equivalent or upgraded materials
- Provide firm price and delivery schedule
- Optionally supply individual components like fin tubes or tubesheets
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai