I switched to a different bevel angle on my plate flanges and the fit-up time dropped by half

Been doing boiler work for about 12 years now. Last month I was working on a job out in Gary, Indiana, replacing some old firetube tubes. I always used a 37.5 degree bevel on my plate flanges cause that's what I learned. Foreman came over and said try a 30 degree instead for this alloy. First one took a little longer to get used to. But after 3 flanges I noticed I wasn't grinding down as much to get the root pass right. The weld metal laid in cleaner. I swear I saved close to 45 minutes on each joint. Has anyone else messed around with bevel angles on different metals?

3 comments

3 Comments

simonb9224d ago

The 37.5° is basically engraved in my brain, that's wild.

luna89124d agoMost Upvoted

That 37.5 stuck with me too but honestly it's not some super deep thing. It's just the number they drilled into us for years in science class so of course it's going to stick. I bet if they taught us 36.8 instead we'd all be equally obsessed with that one.

ray18924d ago

Kept staring at that number in high school biology. Teacher said normal body temp is 98.6 but 37.5 is the magic number in Celsius. Drove me nuts trying to convert it in my head all the time. Still remember it years later even though I never use Celsius for anything else.