Your query does not mention SA 387 grades and thickness. Assuming this is for SA 387 Gr 11 , NACT typically applied and is beneficial for plate thickness over 2". It's a special heat treatment to improve Notch-Toughness of Gr11 steel , which may be a critical issue while fabricating thicker sections of these grades. NACT vs regular normalizing may not have significant issue on tensile properties.
You may refer the attached data sheet from Industeel and decide about Hot Forming on NACT plates. Mill's recommendation is to follow full heat treatment (NACT) after hot forming.
In addition to the data gathered in this forum discussion advice would be to seek the opinion from the Steel Mill also.
Incidentally a lead from similar past discussion in this forum is as below.
Appreciate you could share the outcome when convenient.
Thanks.
P.Goswami.P.Eng, IWE.
Welding & Metallurgical Specialist
Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/
Email:pgoswami@quickclic.net,pradip.goswami@gmail.com
https://groups.google.com/forum/#!topic/materials-welding/WZN23gBBTn0
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Prasad Ghanekar
Sent: June 26, 2018 9:45 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:27988] NACT plate
On Tue, 26 Jun 2018 16:07 Jayesh Parekh, <jayeshparekh34@gmail.com> wrote:
i purchase SA387 plate in NACT condition. But in my fabrication process i have to give one intermediate normalizing. So, this intermediate normalizing cycle also follow NACT cycle ? Or i only normalized and then tempered material, it will ok or Not ?
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