MS5002 Combustion Liner

Overview

The MS5002 Combustion Liner is a critical component used in industrial gas turbine combustion systems. It forms the inner wall of the combustion chamber and is responsible for containing and controlling the high-temperature combustion process within the turbine engine.

In gas turbines such as the MS5002 series, the combustion liner must withstand extremely demanding operating conditions, including high temperatures, pressure fluctuations, thermal fatigue, and aggressive combustion gases. Because of these challenges, the liner must be manufactured using heat-resistant alloys and precision fabrication techniques.

HGTP specializes in the manufacturing and machining of high-temperature turbine components, including combustion liners, transition pieces, exhaust casings, and other hot-section parts. Through advanced CNC machining and strict quality control processes, HGTP provides reliable combustion components for industrial gas turbines used in power generation and energy industries.

Function of the Combustion Liner

The combustion liner serves as the primary structure that contains the combustion flame and protects surrounding engine components from direct heat exposure.

Its key functions include:

• Containing the combustion flame within the chamber

• Directing the flow of fuel and compressed air

• Supporting efficient fuel mixing and combustion

• Protecting the turbine casing from extreme temperatures

• Allowing controlled cooling through air film cooling systems

In the MS5002 turbine system, the combustion liner works together with fuel nozzles and transition pieces to ensure stable combustion and efficient energy conversion.

Materials Used in MS5002 Combustion Liners

Because combustion liners operate in environments where temperatures can reach 900°C to 1200°C, high-performance materials are required to maintain structural strength and corrosion resistance.

Nickel-Based Superalloys

Nickel-based superalloys are commonly used in combustion liners because they provide excellent strength at high temperatures.

Typical alloys include:

• Inconel 625

• Inconel 718

• Hastelloy X

These materials offer:

• High temperature strength

• Excellent oxidation resistance

• Resistance to thermal fatigue

• Long service life in combustion environments

Heat-Resistant Stainless Steel

Certain turbine combustion components may use high-temperature stainless steels such as:

• AISI 321 stainless steel

• AISI 347 stainless steel

These materials provide good thermal stability and oxidation resistance while maintaining structural integrity under repeated thermal cycles.

Manufacturing Process

Producing the MS5002 combustion liner requires advanced manufacturing technologies to ensure precise geometry, reliable welds, and consistent cooling performance.

HGTP utilizes a combination of fabrication and machining processes to produce turbine hot-section components.

Sheet Metal Forming

Combustion liners are typically formed from high-temperature alloy sheets using precision forming processes such as:

• rolling

• deep drawing

• press forming

These processes create the cylindrical or conical shape required for combustion chambers.

Precision Welding

After forming, multiple liner sections are joined using high-precision welding techniques such as:

• TIG welding

• laser welding

• electron beam welding

These welding processes ensure strong joints while minimizing heat distortion.

CNC Machining

CNC machining is used to finish critical features such as:

• mounting flanges

• bolt holes

• sealing surfaces

• alignment features

HGTP utilizes multi-axis CNC machining centers to achieve tight tolerances and ensure compatibility with turbine assemblies.

Cooling Hole Drilling

Combustion liners include hundreds of precision cooling holes designed to protect the liner surface from extreme temperatures.

These holes allow compressed air to form a thin protective film over the liner surface.

Typical cooling hole specifications:

Diameter
0.5 mm – 2 mm

Manufacturing methods include:

• laser drilling

• EDM drilling

• precision mechanical drilling

Accurate hole placement is essential for maintaining uniform cooling and preventing thermal damage.

Technical Specifications

Although the exact specifications of the MS5002 combustion liner vary depending on the turbine configuration, typical parameters include:

Outer diameter
250 mm – 700 mm

Wall thickness
1.5 mm – 5 mm

Operating temperature
900°C – 1200°C

Cooling hole diameter
0.5 mm – 2 mm

Tolerance for critical features
±0.02 mm – ±0.05 mm

Surface roughness
Ra 0.8 – 1.6 μm

These specifications ensure reliable operation in high-temperature combustion environments.

Inspection and Quality Control

Due to the safety-critical nature of turbine components, strict inspection procedures are required during manufacturing.

HGTP implements comprehensive quality assurance systems to ensure every combustion liner meets industry standards.

Dimensional Inspection

Precision measuring equipment such as CMM machines is used to verify critical dimensions.

Non-Destructive Testing (NDT)

NDT methods detect internal or surface defects without damaging the component.

Common inspection methods include:

• dye penetrant testing

• ultrasonic inspection

• radiographic testing

Material Testing

Material verification ensures that the alloy composition and mechanical properties meet turbine specifications.

Testing methods include:

• hardness testing

• metallographic analysis

• chemical composition analysis

Applications

The MS5002 combustion liner is used in various industrial gas turbine systems, including:

• power generation turbines

• industrial gas turbines

• marine propulsion turbines

• energy production equipment

• heavy-duty turbine systems

These components are critical for maintaining efficient combustion, structural protection, and long turbine service life.

Turbine Component Manufacturing by HGTP

HGTP provides high-precision manufacturing services for gas turbine hot-section components, including combustion liners and other critical turbine parts.

Our capabilities include:

• machining of high-temperature alloys

• multi-axis CNC machining

• precision welding and fabrication

• micro cooling hole drilling

• prototype and batch production

With advanced equipment and experienced engineers, HGTP supports customers in the energy, aerospace, and turbine industries with reliable high-performance components.

Conclusion

The MS5002 Combustion Liner is an essential component in industrial gas turbines, designed to withstand extreme temperatures while ensuring stable combustion and protecting surrounding engine structures.

Through advanced materials, precision manufacturing technologies, and rigorous inspection processes, HGTP delivers high-quality turbine components that meet the demanding requirements of modern power generation and energy systems.