Bolts for Turbine

Basic Info.Conditions of UseCar Type, Trailer Type, Marine, Land UseUsageEmergency Crew, Standby Unit, Common UnitsInstallation MethodFixedGenerator TypeSteam Turbine GeneratorProduct DescriptionProduct specification:1,Thread : M6~M1002,Length of head opposite side: 10-120 (mm)3,Head thickness: 6.6-60 (mm)4,Total length: 30~800 (mm)Bolt  Material types:A193B1621CrMoV5-720Cr1Mo1VTiB/VNbTiBX22CrMoV12-12Cr12NiMoWV1Cr11Co3W3NiMoVNbNB1Cr11MoNiW1VNbNR26GH4169Ni80TiAlScope of application:Thread specification ≤ M200, 5MW-1000MW fasteners for critical, subcritical, supercritical and ultra supercritical steam generator setsAs the fasteners of steam turbine, turbine bolts play an important role in ensuring the reliability of cylinder split connection. In order to adapt to the working environment of high temperature, high stress and steam oxidation corrosion, low alloy heat-resistant steel, 12% Cr ferritic stainless steel, nickel base alloy, etc. are the main materials for making high-temperature bolts for steam turbines. 20Cr1MolVNbTiB is a self-developed high-temperature bolt steel. As a bainite high-temperature high-strength steel, it has high endurance strength and anti relaxation performance, good durable plasticity, small hot brittleness tendency, and low notch sensitivity, It is mainly used to manufacture high-temperature bolts with working temperature not exceeding 570 ºC.