[MW:3022] Re: LTCS bolting for SS flange

Hi Prakash,

 

Selection of LTCS bolting due to the design temperature requirement, L7 grade section due to mechanical properties like Tensile strength and Yield strength which is more in L7 then the B8 Grade.

 

Refer ASTM A320 - Bolting materials for Low Temperature services.

 

Regards,

 

Mohan, Q8.

On Tue, Aug 25, 2009 at 8:40 AM, prakash kamathuru <prakashkbp@gmail.com> wrote:

Dear all,

 

Can any one help me to get information regarding LTCS boltings used for SS flsangs.

 

Presently we r using LTCS boltings A 320 Gr L7 for SS 304 Heat exchenger bonnet(head) flanges.Is there any effect on the equipment.

 

Please give me some backup hint to get understand abt it.

 

Design tempr is 300 deg C

 

Regards,

 

Prakash

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