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

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

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Tóm tắt sản phẩm
Bu lông và đai ốc nhiệt độ cao tùy chỉnh dành cho tua bin hơi nước, được làm từ hợp kim chịu nhiệt cao cấp thông qua rèn và gia công CNC. Đảm bảo kẹp ổn định, chống rão và nới lỏng trong điều kiện khắc nghiệt. Tùy chỉnh đầy đủ, moq linh hoạt và chứng nhận đầy đủ cho các dự án nhà máy điện.

Chi tiết sản phẩm

Material Options: 35CrMoA, 42CrMo, 12Cr1MoV, F91, F92, X12CrMoWVNbN, thép không gỉ 17-4PH
Temperature Resistance: 540oC ~ 620oC
Thread Tolerance: Kiểm soát chặt chẽ
Surface Treatments: Thấm nitơ, oxit đen, mạ kẽm, thụ động
Tensile Strength: Cao
Anti-Creep Performance: Xuất sắc
Mô tả sản phẩm
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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