Wednesday, June 9, 2010

[MW:5469] RE: 5454] RE: 5437] Hardness of Untempered Martensite

 

 

Untempered martensite harness is approximately 60 – 65 HRc and not as soft as 300 to 350 Vickers as has been suggested

John du Plessis

Technology Manager

 

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Chandra, Vasanthan (Lagos)
Sent: 08 June 2010 08:16 AM
To: materials-welding@googlegroups.com
Subject: [MW:5454] RE: 5437] Hardness of Untempered Martensite

 

Micro: Needle Like structure

Hardness: 300 to 350 VHN

 

Regards,


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Kathalingam Babu
Sent: 08 June 2010 01:51
To: materials-welding@googlegroups.com
Subject: [MW:5437] Hardness of Untempered Martensite

 

Hi

 

Any body have the idea on hardness for the untempered Martensite ?

 

What will be the morphology of micro?

 

Thanks & Regards,

 

K.Babu
Singapore

 


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