How to Determine MDMT for Matls. Predating MDMT
How to Determine MDMT for Matls. Predating MDMT
(OP)
I wish to determine the MDMT for ASTM A212 BFBX material which is not in Sect. II Part D. This vessel was built in 1962 and the mateial was with drawen in 1967. All of this was before the advent of MDMT in the 80's. Is it permissible to use the UCS-66 curve A (carbon steel) to determine the MDMT for this carbon steel?
Thank you for any input.
Bonkers
Thank you for any input.
Bonkers





RE: How to Determine MDMT for Matls. Predating MDMT
Regards,
Mike
RE: How to Determine MDMT for Matls. Predating MDMT
RE: How to Determine MDMT for Matls. Predating MDMT
RE: How to Determine MDMT for Matls. Predating MDMT
If the -20°F breaks low [brittle] try one at -10°, and on up the temperature scale. When you find the 'sweet spot' temperature, make sure that you get 3ea. breaks to certify your old material.