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| As a key component of the connection and support structure, high-temperature bolts play a crucial role in ensuring the normal operation and efficient performance of steam turbines. High temperature bolts are mainly used in high-temperature parts of steam turbines, such as high-temperature blades, high-temperature cylinder bodies, etc., to maintain the stability of key parts of the turbine and ensure the normal operation of the system. The high-temperature bolts used for steam turbines are made of special high-temperature alloy materials, which have excellent high-temperature strength, anti loosening, corrosion resistance, and oxidation resistance. |
| The commonly used special high-temperature alloys for steam turbines include 15CrMoA, 35CRMOA, 40CrMoV-5, 45Cr1MoV, 0Cr18Ni9, 1Cr11Co3W3NiMoVNbNB, 1Cr18Ni9Ti, 20Cr1Mo1VNbTiB, 20Cr1Mo1VTiB, 25Cr2MoVA, 2Cr11Mo1NiWVNbN, and 2Cr12NiMo1W. The manufacturing of high-temperature bolts requires precise process control to ensure their precise dimensions and meet high quality standards. Quality control is crucial throughout the entire manufacturing process. By using various inspection techniques such as size measurement, metallographic microscopy, ultrasonic testing, etc., ensure that each bolt meets the specification requirements. |
| Technical Specification of High temperature hexagon head bolt | |
| Product size | Customizable to drawings or samples |
| Optional Materials | 15CrMoA |
| 20Cr1Mo1VNbTiB | |
| 25Cr2Mo1VA | |
| 25Cr2MoVA | |
| 35CrMoVA | |
| 40CrNiMoA | |
| 45Cr1MoV | |
| 2Cr11Mo1NiWVNbN | |
| 2Cr12NiMo1W1V | |
| 1Cr11Co3W3NiMoVNbNB | |
| 1Cr18Ni9Ti | |
| Strength | Above level 12.9 |
| Heat treatment | According to the drawing requirements |
| Surface treatment | Nitriding, galvanizing, etc |
| Accuracy | 0.02mm |
| Special processes | According to the drawing requirements |
| Quality inspection | Non destructive testing |
| Related Products Yoyik offers different types of spare parts for steam turbine and generators: MSV stem Special double head bolts M56*4*210 20Cr1Mo1VNbTiB TRIP & LOCKOUT VALVE Slotted countersunk head screw M16*40 35CrMoA Convex washer ADJUSTING GASKET WITH HOLE Special double head bolts M36*3*180 25Cr2MoVA HIP outer casing special double stud spring sheet Bearing 4 Shaft grounding brush sleeve Flange through-hole equal length stud M30*139 20CR1MO1VNBTIB Big spring SPHERE WASHER FEMALE CYLINDER SEAL COMPLETE SERVO TDBFP Double headed studs M36*280 25Cr2MoVA Special double head studs M36*3*95 25Cr2MoVA HANGING GEAR HP & IP STG DIA SCREW Hold Down Ring BFP turning device detent OBVERSE THRUST BEARING BLOCK |
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Dongfang Yoyik Engineering Co., Ltd is located in Deyang, Sichuan, China's heavy equipment base, was founded in 2004. The company is a professional power plant spare parts manufacturer and supplier. Our products are applicable for many thermal power plants, hydropower plants, metallurgic industrial power plant, cement plant power house, aluminum plant power house, and coal mill power plants.
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