Toshiba steam turbine casing bolt

[JO08]

Dear Eng Fellows, I'm going to involve in an outage job handling Toshiba steam turbine 500 MW. Now I have the casing bolt specification, but it's totally unknown for me.
For example, a stud bolt code K1DWUH601236 RG + B Type. Are there someone here could help me to translate/identify this code? Thanks a lot...

 

[Trublu97]

Are to trying to figure out the stretch? I have some toshiba specs that might have the material type I could look up for a similar turbine size (not a guarantee its the same). If you need to manufacture them, a vendor will be able to determine the material.

 

[JO08]

Hi Tru, the elongation and tightening angle are available (to be honest, for me it's quite complicated since need to set angle in degree - minute). I'm more familiar to hydraulic torquing and tensioning method instead of heating rod. The biggest problem is there's no clear spec describe the measurement standard. For example: Stud length (L) = 1236 and thread type UH6. There're no detail whether it's measured in mm or inches and pitch type of UH6. Hope u could help.

 

[unclesyd]

Maybe this little tool will uncomplicate the tightening of your bolts.

Look at the stud protractor.

http://www.powerhousetool.com/misc.htm