Steam Turbine Studs

Steam Turbine Studs are high-strength fastening components specifically engineered for steam turbines operating under high temperature, high pressure, and cyclic loading conditions. They are widely used to secure turbine casings, cylinder flanges, valve bodies, bearing housings, diaphragms, and other critical assemblies, ensuring structural integrity and reliable sealing throughout the turbine's service life.

Manufactured from premium alloy steels and high-temperature materials such as ASTM A193 B7, B16, L7, ASTM A453 Grade 660, 25Cr2MoVA, 35CrMo, 42CrMo, Inconel®, and other nickel-based alloys, these studs provide outstanding tensile strength, creep resistance, fatigue performance, and corrosion resistance. Heat treatment, precision thread machining, and comprehensive quality inspections ensure excellent dimensional accuracy and long-term reliability in demanding power generation environments.

Steam turbine studs are available in metric and imperial thread standards, with diameters typically ranging from M12 to M120 (or 1/2" to 4") and lengths customized according to customer drawings or OEM specifications. Surface finishes such as black oxide, phosphate coating, zinc plating, PTFE coating, or other corrosion-resistant treatments are available based on operating requirements.

At DAWOPU, we manufacture OEM-quality steam turbine studs according to customer drawings, samples, or technical specifications. Every stud undergoes rigorous inspections, including dimensional verification, thread gauge inspection, hardness testing, tensile testing, ultrasonic testing (UT), magnetic particle inspection (MPI), and material certification to ensure compliance with international quality standards.

Features

• Designed for high-temperature steam turbine applications
• Manufactured from premium alloy and nickel-based materials
• High tensile strength and excellent creep resistance
• Precision-machined threads for secure fastening
• Outstanding fatigue, oxidation, and corrosion resistance
• Available in custom sizes and thread specifications
• Manufactured according to OEM drawings or samples
• Strict quality control with complete inspection reports

Typical Applications

• Steam turbine casing bolts
• Turbine cylinder flange connections
• Valve body fastening
• Bearing housing assemblies
• Diaphragm mounting
• Steam chest assemblies
• Power plants
• Industrial steam turbines
• Combined cycle power stations
• Petrochemical and refinery turbines