Luxi Chemical Group Co., Ltd.
Luxi Chemical Group Co., Ltd.
ASTM B338 Gr2 Titanium Heat Exchanger Tubes for Luxi Chemical
Client: Luxi Chemical Group Co., Ltd.
Industry: Comprehensive Chemical Manufacturing
Location: Liaocheng, Shandong, China
Solution: ASTM B338 Grade 2 Titanium Seamless Tubes
Application: Shell & Tube Heat Exchangers | Corrosive Process Cooling & Heating Services
Challenge: Heat Exchanger Reliability in Aggressive Chemical Streams
In large-scale chemical complexes, heat exchangers are among the most vulnerable assets when process streams contain aggressive media. At one of Luxi Chemical’s key production facilities, conventional heat exchanger tubing—primarily carbon steel and standard stainless alloys—was failing to meet operational expectations.
The engineering team faced recurring problems:
- Rapid tube bundle corrosion:Exposure to mildly oxidizing chlorides, dilute acids, and humid process atmospheres led to pitting and general wall thinning.
- Frequent bundle replacements:Short service life forced repeated shutdowns for bundle extraction, cleaning, and re-tubing.
- Production bottlenecks:Unplanned maintenance disrupted upstream and downstream units, limiting overall plant utilization.
- Rising lifecycle costs:High spare-part consumption and labor intensity drove up the total cost of ownership (TCO).
Luxi Chemical required a long-life, corrosion-resistant tubing solution capable of restoring heat-transfer reliability while minimizing future maintenance burdens.
Solution: ASTM B338 Gr2 Titanium Tubes by Baoji Special Steel & Titanium
After technical evaluation, Luxi Chemical selected ASTM B338 Grade 2 titanium seamless tubes manufactured by Baoji Special Steel & Titanium Co., Ltd. as the replacement material for critical heat exchanger bundles.
Product highlights:
- Material:Commercially Pure Titanium (Gr2), offering an optimal balance of corrosion resistance, ductility, and weldability.
- Standards Compliance:Manufactured in full accordance with ASTM B338 and ASME SB-338, with third-party inspection available upon request.
- Manufacturing Process:Cold drawn, seamless construction ensures uniform wall thickness and excellent surface quality.
- Dimensional Control:Precise outer diameter (OD) and wall thickness tolerances facilitate trouble-free bundling, tube sheet rolling, and expansion.
- Surface Finish:Clean, oxide-free surface after pickling and passivation, maximizing resistance to fouling and corrosion initiation.
The tubes were supplied in customized lengths and quantities to match Luxi’s existing shell-and-tube exchanger designs, enabling direct retrofit without major equipment modifications.
Results: Extended Service Life and Lower Maintenance Costs
Since installation, the Gr2 titanium tube bundles have delivered measurable performance improvements:
- Exceptional corrosion resistance:No evidence of pitting, crevice corrosion, or wall thinning after prolonged service in chloride- and acid-bearing streams.
- Long-term reliability:Tube bundles remain in continuous operation well beyond the historical lifespan of previous alloys.
- Reduced maintenance frequency:Scheduled inspections confirm structural integrity, allowing extended run lengths between outages.
- Improved thermal efficiency:Stable tube condition preserves clean heat-transfer surfaces, avoiding the efficiency penalties associated with corrosion fouling.
- Lower TCO:Although titanium carries a higher initial material cost, the elimination of frequent bundle replacements and associated downtime generates substantial lifecycle savings.
Luxi Chemical’s maintenance and process teams highlighted the predictable performance and durability of the titanium tubes as a key factor in stabilizing heat-transfer operations.
Why Titanium (Gr2) for Chemical Heat Exchangers?
In corrosive chemical services, titanium has become the material of choice for heat exchanger tubing due to:
- Outstanding resistance to chlorides, wet chlorine, seawater, and many acidic environments
- Immunity to chloride stress corrosion cracking (Cl-SCC)
- High strength-to-weight ratio, simplifying handling and installation
- Excellent heat transfer performancethanks to thin, high-conductivity walls
- Proven track recordin petrochemical, chlor-alkali, and fine chemical plants worldwide
Grade 2 titanium, in particular, offers the best combination of formability and corrosion resistance for general chemical service, making it ideal for both new builds and retrofit projects.
Conclusion
The successful deployment of ASTM B338 Gr2 titanium heat exchanger tubes at Luxi Chemical demonstrates how advanced materials can resolve chronic equipment reliability issues in corrosive chemical processes. By replacing failure-prone alloys with titanium, the plant achieved longer service intervals, lower maintenance costs, and greater confidence in continuous production.
This project further reinforces Baoji Special Steel & Titanium’s role as a trusted supplier of high-performance titanium tubular products for the global chemical industry.
Upgrade Your Heat Exchanger Reliability
If your plant faces similar challenges with tube corrosion, frequent bundle failures, or excessive maintenance in aggressive chemical environments, our technical team can supply titanium tubes and fabricated tube bundles tailored to your process conditions.
📩 Contact us to discuss specifications, material grades, and project delivery schedules
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