Re: [MW:5263] gorup of SA517

Dear Ali, for your point no. 1, I would like to say due to quenching in oil/water after heating the object to the required temp, the cooling rate will be very faster, so grain size will be less. In this case hardness and brittleness also increases, so to get toughness in the material we need to carry out tempering. With Regards, Rutvik Sr.Surveyor TATA Projects Ltd. --- On Wed, 26/5/10, Ali Asghari <asghariali@rocketmail.com> wrote: From: Ali Asghari <asghariali@rocketmail.com> Subject: [MW:5257] gorup of SA517 To: materials-welding@googlegroups.com Date: Wednesday, 26 May, 2010, 4:32 PM Dear All 1-is Quenching & Tempering a process of grain refining? 2-SA 517 belong to curve A or B in UCS 66? REGARDS   -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.