Material of the heat exchanger
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There is a heat exchanger whose tube side is made of Q245R; is it stainless steel? The material of its shell side is 12Cr5MoI. What is this material? Thank you; points will be given
Q245R is carbon steel, while 12Cr5MoI is a low-alloy forging. . . . . . . . . .
Q245 is a low-alloy high-strength structural steel; the “R” designation indicates that it is steel intended for use in pressure vessels； 12Cr5Mo is a martensitic stainless steel.
12Cr5Mo is a martensitic stainless steel???? Is this a stainless steel material? I’m not sure; I don’t want to mislead others
I haven’t seen 12Cr5Mo1 either; it should be 2. Low-alloy steel
Q245R is a regular carbon structural steel with a yield strength of 235 MPa; 12Cr5MoV1 is a high-pressure alloy tube that belongs to the martensitic stainless steel category
1There is a heat exchanger whose tube side material is Q245R; is it stainless steel? === Carbon steel; it should be a steel plate, not a steel pipe. 2 The material of its shell side is 12Cr5MoI. What is this material? Thank you; extra points appreciated === Heat-resistant steel
Q245R is carbon steel; another material is also carbon steel, but its name seems to be incorrect – it should be 12CrM2o1R
It is necessary to distinguish between the tube side and the shell side. There is no need to introduce Q245R; it is just the most common carbon steel, with the ‘R’ indicating that it is designed for use in containers. 12Cr5MoI is actually an older grade of 1Cr5Mo; it belongs to low-alloy steel and can withstand high temperatures. I- indicates that the supply condition is: full annealing or isothermal annealing.
Q245R is a CS steel; its shell-side material is 12Cr5MoI, which is LAS