Wind Tower Connecting Flange

Wind turbine tower flanges securely connect the rotor blades of a wind turbine to the main shaft of the generator, typically through bolts or other fastening methods Rotor blades of wind turbines generate torque due to the force of the wind. Wind turbine tower flanges transmit this torque to the generator’s main shaft. The main shaft then transfers the torque to the generator, aiding in the generation of electricity.

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Material4130,18CrNiMo7-6,16Mn,class1,1.7220, A105, P355, Q345, Q345D, Q235B, Q345E, 304, 304L, 316, 316L, 321, C22.8,  SA350 LF2, P280GH, P250GH,     F11, F22, F51, F53, 16Mo3, TStE355 
Max diaUp to 9000MM
ApplicationWind power flange is connected tower,bolt fixed ,drilled flange
Melting processEF+LF+VD
Production processForging + heat treatment + rough machining
Forging ratio≥5
Testing & InspectionSpectrograph, UT ultrasonic test device, tensile and compact test machine, metalloscopy, outside micrometer, bore dial indicator, hardness test machine

Chemical Composition (%) 

Material elementsCSiMnPSCrNiMoCu
41300.26-0.330.15-0.350.40-0.60≤0.035≤0.0400.80-1.10≤0.0300.15-0.25≤0.030
Q345D0.13-0.200.17-0.371.20-1.60≤0.030≤0.030≤0.30≤0.30--
18CrNiMo7-60.15-0.210.17-0.350.50-0.90≤0.025≤0.0251.50-1.801.40-1.700.25-0.35