carryout annealing at 850 degC with furnace cooling 30 degC/hr max to achieve hardness in range around 160 BHN. As per spec max hardness permitted in annealed condition is 223 BHN.
quenching at 980 degC followed by tempering at diff temp is for obtaining higher hardness.
vanchinath
On Sat, Jul 25, 2020 at 8:05 PM SURESH <qms.pjgpl@gmail.com> wrote:
Hi My question is what is the suggested annealing temperature for .ASTM A473 Typ410 grade. If your refer the standard of ASTM A473, Table 2 they have given condition like A,1,2,3.So if it is annealed condition what is the suggested temperature to achieve 223BHN?--Note: Refer attachmentRegardsSureshOn Saturday, 25 July 2020 at 09:24:17 UTC+5:30 ramink...@gmail.com wrote:If this is the TDC for raw material as per contract, then you have to find a supplier who can provide it unless you can prove that it would cause problems during fabrication or operation. And that is why I told you to provide us with more details.Then you need a qualified engineer who reviews all the documents and is able to get into a discussion with your client to find out whether other alternatives are acceptable or not. I do not think you can do it via online inquiries; you need to hire someone to do this for you...Ramin KondoriSr. QA/QC & Welding Engineer-----------------------------------------------------------PG-Dip. in Welding Engineering (IWE AT 0070)BSc. in Civil Engineering (IUT)BGAS Painting InspectorASNT Level I&IIOn Fri, Jul 24, 2020 at 7:45 AM <sathis...@gmail.com> wrote:Dear Mr.Ramin Kadori.
My customer is given TDC for annealing at 955 C but raw material supplier is suggesting that they do only with 850 C. Its not for fabrication, to give raw material into finished component by machining. Required hardness is 160 BHN
As per ASTM A473, Grade/Typ. 410 can be supplied as per the following conditions:
Condition A refers to annealing. (ASTM A473 mentioned with A, 1,2,3,). In this case how to determine the Annealing temperature?
My requirement is to get hardness of 160BHN
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