When formulating the stainless steel flange size series and calculating the flange thickness, it is based on the mechanical properties of 16MnR at 200 °C. Therefore, the flange size determined by this standard is specified. At 200 ° C, the allowable operating pressure of the stainless steel flange is considered to be the nominal pressure of the flange of the size.
If the material of the flange butt weld flange is changed from 16MnR to 15MnVR. Then, since the mechanical properties of 15MnVR are better than 16MnR, this nominal pressure PN0.6MPa flange, when operating at 200 °C, its allowable operating pressure will be higher than its nominal pressure.
The flange is also called a flange or flange. A flange is a part that connects a pipe to a pipe or a valve and is connected to the pipe end. There are holes in the flange, and the bolts make the two flanges tightly connected. Flange threaded connection flange and welded flange and ferrule flange.