Valeria
De: "John Henning" <jhenning@deltak.com>
Para: <materials-welding@googlegroups.com>
Fecha: 23/01/2013 14:29
Asunto: [MW:16577] RE: 16574] ASTM A516 Gr.70 normalizing
Enviado por: materials-welding@googlegroups.com
See 5.1 and 5.2 of the A516 specification.
Anything less than 1.5 inches thick is usually as rolled and anything above 1.5 inches thick is required to be normalized.
If you need low temperature impacts and the material thickness is less than 1.5 inches, you should specify that the material be normalized.
Heat treatment should be stated on CMTR.
John A. Henning
Welding & Materials
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of M2M
Sent: Tuesday, January 22, 2013 8:47 PM
To: materials-welding@googlegroups.com
Subject: [MW:16574] ASTM A516 Gr.70 normalizing
Dear All
I need to know how can understand that ASTM A516 Gr.70 is normalized or not?
Somebody told me:
"according to clause 5.3 of ASTM A516 standard (attached), when we apply charpy impact test on a material and it pass the impact test successfully, we can say the material is surly normalized but if the material can't pass the impact test, we shall apply metallographic test to understanding if the material is normalized.
And somebody said me:
"we have just 1 way to know that is the material normalized or not. And its metallographic test."
M. Farhang
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