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Качество Custom High-Temperature Bolts & Nuts for Steam Turbines with Heat-Resistant Alloy Steel and Precision CNC Machining Фабрика
Качество Custom High-Temperature Bolts & Nuts for Steam Turbines with Heat-Resistant Alloy Steel and Precision CNC Machining Фабрика
Качество Custom High-Temperature Bolts & Nuts for Steam Turbines with Heat-Resistant Alloy Steel and Precision CNC Machining Фабрика
Качество Custom High-Temperature Bolts & Nuts for Steam Turbines with Heat-Resistant Alloy Steel and Precision CNC Machining Фабрика

Custom High-Temperature Bolts & Nuts for Steam Turbines with Heat-Resistant Alloy Steel and Precision CNC Machining

Бирки

Лопасти паровых турбин

подшипники паровых турбин

диафрагма паровых турбин
Резюме продукта
Изготовленные на заказ жаропрочные болты и гайки для паровых турбин из жаропрочных сплавов премиум-класса методами ковки и обработки на станках с ЧПУ. Обеспечивает стабильный зажим, противостоит смещению и ослаблению в экстремальных условиях. Полная индивидуализация, гибкий минимальный заказ и полная сертификация для проектов электростанций.

Детали продукта

Material Options: Нержавеющая сталь 35CrMoA, 42CrMo, 12Cr1MoV, F91, F92, X12CrMoWVNbN, 17-4PH
Temperature Resistance: 540℃ ~ 620℃
Thread Tolerance: Строго контролируется
Surface Treatments: Азотирование, оксидирование, цинкование, пассивация.
Tensile Strength: Высокий
Anti-Creep Performance: Отличный
Характер продукции
Custom High-Temperature Bolts & Nuts for Steam Turbines
Our customized steam turbine high-temperature bolts and matching nuts are core heavy-duty fasteners for thermal power equipment, widely used on turbine main steam valves, high-pressure flanges, rotor shafts, cylinder split surfaces and bearing housings.
Product Overview
All products are tailor-made according to unit parameters, drawing specifications and actual working conditions. Manufactured from premium heat-resistant alloy steel via integral forging and ultra-precision CNC machining, they deliver stable clamping force under long-term ultra-high temperature & pressure, effectively resisting loosening, creep deformation and thread failure, avoiding steam leakage and unplanned unit shutdown.
Core Customization Advantages
  • Full Drawing Customization Support
  • Customizable thread specification, length, diameter, head shape, slot nut structure, undercut and chamfer
  • Supporting matching sets of bolts + slotted lock nuts, flat washers and spring washers
  • Compatible spare parts for all turbine retrofits
  • Flexible MOQ: Large batch for new power plant projects, small emergency batches for unit maintenance
High-Grade Heat-Resistant Alloy Materials
Material options matched to different temperature grades (540℃ ~ 620℃ ultra-supercritical units):
Material Grade Application Range
35CrMoA, 42CrMo, 12Cr1MoV Standard temperature applications
F91, F92, X12CrMoWVNbN High temperature applications
17-4PH stainless steel Corrosion resistance applications
High tensile strength, excellent anti-creep, anti-fatigue and oxidation resistance. Complete MTC material test certificates, chemical composition and mechanical performance reports provided for power plant acceptance.
Advanced Manufacturing Process
  • Integral open-die forging eliminates internal defects, optimizes metal grain flow, greatly improving fatigue resistance under alternating thermal loads
  • Precision thread rolling/turning, thread tolerance strictly controlled, uniform stress distribution to prevent thread cracking
  • Fine polishing & deburring on all surfaces; optional surface strengthening treatments: nitriding, black oxide, zinc plating, passivation
  • Slotted lock nuts with evenly distributed milling slots for reliable anti-loosening locking with lock tabs
Performance Under Extreme Conditions
  • High temperature resistance: No permanent creep deformation under long-term high-temperature operation
  • Anti-vibration & anti-loosening: Matched slotted nut locking structure offsets thermal expansion and mechanical vibration
  • Stable clamping force: Maintains consistent preload without loosening after thousands of start-stop cycles
  • Anti-oxidation & anti-corrosion: Resists erosion from high-temperature steam and lubricating oil
  • Long service life: Reduce frequent replacement and maintenance downtime, cut overall operation cost
Quality Assurance & Inspection
  • Raw material incoming test: Spectrum analysis, hardness test, ultrasonic flaw detection for internal cracks
  • Semi-finished inspection: Full dimension measurement via CMM coordinate measuring machine
  • Finished product testing: Thread fit test, torque simulation test, tensile strength test, high-temperature aging simulation
  • 100% visual appearance inspection before packaging
  • Complete inspection documents delivered together with goods
Application Scenarios
  • Supercritical & Ultra-supercritical Thermal Power Generating Units
  • Cogeneration Industrial Steam Turbines
  • Waste Heat Recovery Power Turbines
  • Steam Turbine Cylinder, Main Steam Valve & Rotor Fastening Systems
  • Power Plant Equipment Retrofit & Maintenance Spare Parts
Why Choose Our Custom Turbine High-Temp Fasteners?
  • 35+ years professional manufacturer focusing on power station high-temperature fasteners
  • One-stop integrated service: Material forging, CNC precision machining, surface treatment, testing and export packaging
  • Fast delivery for urgent maintenance spare parts; stable mass production capacity for new power plant projects
  • Professional engineering team provides free drawing review, parameter matching and technical optimization advice
  • Products comply with GB, ASTM, DIN international industry standards
  • Full after-sales technical support: Assembly guidance, pre-tightening torque training and failure analysis

Mr. Tom Hu

General Manager

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