As a highly efficient heat energy conversion device, the performance of the high-pressure cylinder combination flange and its fastening bolts plays a decisive role in the operating efficiency and safety of the entire steam turbine. The high-pressure cylinder combined surface flange is a key component connecting the inner and outer shell of the high-pressure cylinder. It not only has to withstand huge mechanical stress, but also maintains good sealing performance in high-temperature and high-pressure environments. As the main body of the connection, the material and performance of the fastening bolts directly affect the connection quality of the flange and the safety of the turbine operation.

2Cr12NiMoWV is a stainless steel material designed for high temperature, high pressure and corrosive environments. This material has excellent heat resistance, corrosion resistance and high strength through the addition of elements such as chromium, nickel and tungsten in its composition. In the application of combined surface flanges of steam turbine high-pressure cylinders, 2Cr12NiMoWV bolts can withstand huge stress under high temperature and high pressure, while resisting erosion by various corrosive media, ensuring the stability and reliability of flange connections.

During the operation of the steam turbine, the pressure and temperature inside the high-pressure cylinder are very high, which requires the fastening bolts to have high strength to withstand these extreme conditions. The high strength characteristics of 2Cr12NiMoWV material enable it to maintain good mechanical properties in this environment and is not easily deformed and damaged, thus ensuring the safety of bolt connections.

In addition, 2Cr12NiMoWV material also has good heat resistance. During the operation of the steam turbine, the bolts will be exposed to high-temperature steam, which requires the material to maintain its mechanical properties in high-temperature environments. The oxidation resistance of 2Cr12NiMoWV material at high temperatures enables it to maintain stable performance under the action of high-temperature steam and is not prone to softening or creep.

Corrosion resistance is another important characteristic of 2Cr12NiMoWV material. The interior of the steam turbine may be exposed to various corrosive media, such as water, steam, chemical media, etc. The corrosion resistance of 2Cr12NiMoWV material enables it to operate stably for a long time in these complex working environments and is not easily affected by corrosion.

Yoyik can offer many spare parts for power plants as below:
Steam turbine Slotted cylindrical head screw
Coal mill Grinding ring tray ZGM95-07-03
Steam turbine HIP casing balance screw plug
Steam turbine Medium pressure main valve gasket
Steam turbine Flat Welding Flange
Induced draft fan Sealing group DTYJ60AZ017
Induced draft fan Sealing ring assembly HU26250-221
Forced-draft blower Soft sling HZB253-640-03-04-00
Primary fan Ball sealed hose 38-760(50/50)
Steam turbine Stainless Steel Washer
Coal mill Guide gasket kit 07MG20.11.12.07.97
Steam turbine L-Shape Support
splined nut Crl1MolNiW1VNbN Steam Turbine high pressure control valve