Normalized, killed, or fine grain plate
Normalized, killed, or fine grain plate
(OP)
Hi everybody!
I'm not an expert formulating materials according applications, and I want to know the rules (if they exist) to know if a CS material (say SA516-70) must be normalized, killed, fine grain, and so on.
Other question, I want to understand how can I use A516-70 instead of SA516-70...
For instance, the vessels I'm working on are:
Hor Vessel ID=84" L=20', P=320psi, T=250°F
Ver vessel ID=84" H=100', P=300psi, T=279°F
Any help will be appreciate...
Heyner
I'm not an expert formulating materials according applications, and I want to know the rules (if they exist) to know if a CS material (say SA516-70) must be normalized, killed, fine grain, and so on.
Other question, I want to understand how can I use A516-70 instead of SA516-70...
For instance, the vessels I'm working on are:
Hor Vessel ID=84" L=20', P=320psi, T=250°F
Ver vessel ID=84" H=100', P=300psi, T=279°F
Any help will be appreciate...
Heyner





RE: Normalized, killed, or fine grain plate
Both of these ASME B&PV Code material specifications address melting practices and heat treatments. They are self explanatory.
RE: Normalized, killed, or fine grain plate
I'll see what I can find, and ask again if further help needed.
Thanks a lot...
Heyner
RE: Normalized, killed, or fine grain plate
SA-516 should be essentially the same as ASTM A516. Check with your supplier to see if it meets both specs.
I don't know about ASME work, but in my field the normalized plate is usually required for low design temps or unusually thick plate.
RE: Normalized, killed, or fine grain plate
RE: Normalized, killed, or fine grain plate
But my question is How can I be sure I need (or I don't) normalized plates? Is it like JStephen said, at low temperatures? Is it only one of the reasons?
Thanks for your help,
Heyner
RE: Normalized, killed, or fine grain plate
For low temperature service, I would prefer normalized plates because of the benefit in having higher toughness at low service temperature. Impact test requirements for your design will determine if you need to use normalized plates versus hot rolled.
RE: Normalized, killed, or fine grain plate
Thanks,
Heyner