U-Factor
U-Factor
(OP)
While reading some specifications for Duplex Stainless Steel Castings and Forgings, I came accross the term "U-Factor". It says here that this factor is dependent on the weight percentage of Si, Cr and Mo.
Can somebody help me understand the significance of this factor and where else it might be used?
Thanks
Can somebody help me understand the significance of this factor and where else it might be used?
Thanks





RE: U-Factor
http://www.combustionresearch.com/Infra-Spec/infra-spec...
Alloying elements could well change the conductivity, hence the U-factor.
... although, by the way you described it, it doesn't sound like the correct definition for the context.
Anyway, good luck
RE: U-Factor
heres a relation that defines the U-factor
U = 4.76*Si + 2.65*Cr + 3.44*Mo - 43.64
I dont think this relation determines the conductivity in any way. There must be some other explaination.
thanks for your help
RE: U-Factor
RE: U-Factor
I found a similar equation to yours, although there are a lot more elements listed.
ht
(near the bottom)
Km = Cr + 6 x (Si) + 8 x (Ti) + 4 x (Mo) + 2 x (Al) - 2 x (Mn) - 4 x (Ni) - 40 (C + N) - 20 x (P) - 5 x (Cu)
an equation regarding the balance between ferrite and martensite.
Hope that helps