In modern chemical processing, safety, longevity, and corrosion resistance are non-negotiable. Aging infrastructure in legacy plants often leads to increased downtime, maintenance costs, and operational risks. One of the most effective solutions for retrofitting such environments is the use of titanium pipe, thanks to its exceptional corrosion resistance, mechanical stability, and long service life.

This case study highlights how a large-scale chemical facility in Southeast Asia underwent a major piping system retrofit—replacing traditional steel pipelines with titanium pipe supplied by sakyalloy. The results delivered transformative improvements in plant performance, reduced maintenance costs, and enhanced environmental safety.

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Background: The Retrofit Challenge

The client, a global manufacturer of specialty chemicals, had been experiencing persistent issues in its acid-processing unit. The original carbon steel and stainless steel pipes, installed over 15 years ago, were showing accelerated corrosion due to the high concentration of hydrochloric and sulfuric acids in the fluid stream.

Problems included:

• Frequent pipe leaks and repairs

• Increased unscheduled shutdowns

• Rising maintenance and replacement costs

• Potential risk of acid exposure to personnel

After evaluating different retrofit options, the plant’s engineering team chose titanium piping as the long-term solution. The material’s corrosion resistance to both oxidizing and reducing acids, low maintenance profile, and long service life aligned perfectly with operational priorities.

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Project Scope

The retrofit project involved:

• Replacing over 300 meters of pipeline in critical process zones

• Operating pressures: up to 16 bar

• Operating temperature range: 40°C to 90°C

• Media: hydrochloric acid, sulfuric acid, and solvent blends

• Expected service life: 25+ years without major replacement

sakyalloy was selected as the primary titanium pipe supplier based on product quality, technical consultation, and delivery capability.

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Material Selection

After a corrosion risk assessment, the plant selected Grade 2 titanium pipe, conforming to ASTM B861 and ASME SB-338 specifications.

Reasons for choosing Grade 2:

• Excellent corrosion resistance in most chemical media, especially chlorides and acids

• Sufficient strength for the plant’s pressure and temperature conditions

• Good weldability for on-site installation

• Lower cost compared to higher-grade alloys

All pipes were seamless, ensuring uniform wall thickness and minimal risk of internal corrosion crevices. Custom dimensions were fabricated to match legacy flange systems and mounting brackets.

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Role of sakyalloy in Project Success

sakyalloy played a critical role throughout the project’s lifecycle:

1. Technical Consultation

sakyalloy’s engineering team worked closely with the client to:

• Review chemical compatibility and corrosion data

• Recommend proper wall thickness and pipe schedules

• Advise on welding procedures and surface treatment

Their insights helped the client avoid over-specifying pipe grade, which would have unnecessarily increased project cost.

2. Custom Fabrication

The titanium pipes were manufactured with:

• Tight dimensional tolerances for flange alignment

• Custom lengths to minimize on-site welding

• Smooth internal surfaces to reduce fluid resistance

All pipes underwent hydrostatic testing and non-destructive evaluation (NDE) before shipment.

3. On-Time Delivery

With a strict retrofit timeline of just eight weeks during a scheduled maintenance shutdown, sakyalloy ensured:

• Production within 15 working days

• Sea freight shipment with professional corrosion-resistant packaging

• Real-time tracking and delivery support

The materials arrived ahead of schedule, allowing buffer time for installation.

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Installation and Commissioning

On-site installation was performed by the plant’s EPC contractor. Benefits of working with titanium included:

• Reduced structural support upgrades due to lighter pipe weight

• Clean weldability using argon-shielded TIG welding

• No post-weld heat treatment required, saving time

The system was pressure-tested to 1.5 times operating pressure and passed all commissioning trials.

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Results and Performance

Six months after commissioning, the titanium piping system showed the following benefits:

• Zero leaks or corrosion issues

• No unplanned downtime due to piping failures

• Improved flow rates due to smoother inner surface and no scale buildup

• Lower maintenance costs with no need for frequent inspections or repairs

The plant now expects a 25–30 year service life for the titanium piping system, with minimal maintenance compared to carbon or stainless steel options.

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Long-Term ROI

While the initial investment in titanium pipe was higher than traditional materials, the ROI analysis over a 10-year period revealed:

• 60% reduction in maintenance costs

• 90% reduction in downtime-related production loss

• Full ROI achieved within 3.5 years

• Environmental compliance improvements due to lower risk of acid leakage

These results demonstrate the cost-effectiveness of titanium pipe in chemically aggressive environments.

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Lessons Learned

From this case study, several key takeaways emerged:

• Titanium is not just for new construction — it’s an ideal material for retrofits in corrosion-prone systems.

• Supplier collaboration is critical — working with sakyalloy ensured smooth specification, logistics, and installation.

• Material education matters — understanding the true lifecycle value of titanium helps justify initial costs.

• Customization minimizes disruption — factory-cut lengths and matched connections reduced installation complexity.

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Conclusion

This case study proves that titanium pipe is a game-changing solution for aging chemical processing infrastructure. Its corrosion resistance, mechanical reliability, and maintenance-free performance make it ideal for retrofitting environments with aggressive chemical exposure.

As industries move toward more sustainable and safe operations, forward-thinking companies are investing in long-term solutions like titanium. With its proven track record and comprehensive service, sakyalloy is positioned as a trusted partner for such transformations.

From material selection to timely delivery, sakyalloy ensures that every project benefits from the highest standards of engineering and execution.