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[MW:4692] RE: 4677] Alternate Material to AISI 316Ti

By Materials & Welding

Dear Praphulla,

 

The purpose of selection for 316Ti should be used in the temperature range between 600 - 900ºC. This is called Titanimum stabilized grade. In general austenitic (300 series) stainless steels are having problem of sensitization (Chromium carbide precipitation) in the temperature range of 450 - 850ºC. To avoid this problem, stabilized grades of SS shall be selected, hence no chromium carbide precipitation will be formed instead Titanium carbide formation will take place which would not cause for sensitization problem.

 

Also note that if it is for high temperature application, the minimum % of carbon should 0.04 in order to retain fall in strength when temperature increases. This cannot be achieved in ‘L’ grade steels. Hence, It is suggested to use AISI 316 instead of AISI 316L in place of 316Ti. Also suggested to confirm with design engineer for this application.

 

Regards,

 

L. Prabhu kumar,

Sr. Principal Engineer,

 

Equipments & Materials Dept.,

Saipem India Projects Limited,

Nungambakkam High Road, Chennai - 600 034, India.

Tel:+91 44 43906588, Ext.: 588, Fax:+91 44 66840345,

Mobile Ph. No.: +91 9003010978.

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Praphulla Phirke
Sent: Saturday, April 03, 2010 8:54 PM
To: Materials & Welding
Subject: [MW:4677] Alternate Material to AISI 316Ti

 

Hi All,

Can I used AISI 316L in place of AISI 316Ti?

 

 

Thanks & Regards

Praphulla

praphulla.dp@gmail.com

 

 

 

 




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