Bolt dia is 3.502 inch.Area shall be 8.974 Sq.Inches.
Bolt's tensile load in Lbs shall be 424022 Lbs for 50% of SMYS for L7 bolts and same shall be 706703 Lbs if we take 75% of SMYS for L7 bolts.Accordingly the torque can be between 27225 lb.ft(36910 N-m) to 45370 Lb.Ft(61515 N-m) based on formula,Torque=KDP/12 where K=0.22 for Zn plating,D is dia of bolt in inches and P=Bolt load in lbs.
Regards
Aarpee
On Sun, Aug 2, 2009 at 6:33 PM, Mohammad Javeed <mmubasharjaveed@gmail.com> wrote:
Dear all
Have a nice day
I need your help about one query regarding torque value. We have a one flange joint of dia 36" RF CL. 900 material A350-LF2.and bolt length is 800mm. As per our client requirement this tightening should be done with hydraulic tensioning system. So what should be the torque value for this flange?
Thanks
M javed
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