Borzak
Bronze Baron of the Realm
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The only real issue we encounter are from engineering done out of the country and they try to convert it to save us the trouble. Never again. It's just not a good way to go. Rather do it on my end and produce shop drawings in feet and inches. You get odball as measurements on the drawings that don't fit into anybodies system and confuses the shop. Instead of a 10x22 beam you get a 9.9x21.9 and nobody knows what the fuck to do with it.
Also in the steel industry the last revision to steel sizes was 1977 and before that 1954 and they are named like 10x22. So a 10" noimal depth beam and 22 pounds per foot. We have had to use a few imported hyper beams that are very large and verry heavy like 1m deep and 800 pounds a foot but the nomenclature doesn't convert very well.
Even if we used all imported beams done in kgs we still have to convert to pounds because you have to estimate a trucks weight in pounds for load ratings on bridges and stuff, plus all lifts in the US require you to submit and estimate and "as shipped" weight in pounds.
ASME - American Society of Mechanical Engineers requires all your calculations for pressure vessel to be in imperial and they don't allow a computer print out. All calculations must be shown in full by hand, and checked by hand. You can personally check the numbers on a computer, but you can't submit your calculations for a code stamp from a computer program.
It works in our industry and never a problem so really not going to screw with it. Plus I like I can call to the field and joe dipshit with no schooling at all but 25 years experience on the job can walk within 20 feet of something and call me back and say "Yup it's a 12x65 column" without taking a tape measure to it or a special metric tape measure.
I have done a few jobs that I go to the field and dick around with it and measure some existing steel and realise it's not adding up. Then I have to find which country it was imported from because they don't have standards from country to country. So just because it's Xmm deep and Ymm wide with Zmm thickness web and flange that doesn't tell you where it was from and how to look up the T and K dimensions for fabrication because they change from country to country. Also in the US all structural sizes are 50k psi ad plate 36k unless it's a specially marked alloy. To find out on imported steel it can take an act of congress to find out and it's not unusual for a member to be scrapped and start over because it's cheaper and less hassle than trying to find out. In my experience foreign rolled steel in the EU and Japan seems to be whatever they felt like rolling that day, or they seem to roll to match a job which isn not how it's done in the US. We have standards and you pick what fits the job.
Not a relcation on the metric system as it is their fucked up standards or lack of, but why we just avoid it to make shit simpler on our end.
Also in the steel industry the last revision to steel sizes was 1977 and before that 1954 and they are named like 10x22. So a 10" noimal depth beam and 22 pounds per foot. We have had to use a few imported hyper beams that are very large and verry heavy like 1m deep and 800 pounds a foot but the nomenclature doesn't convert very well.
Even if we used all imported beams done in kgs we still have to convert to pounds because you have to estimate a trucks weight in pounds for load ratings on bridges and stuff, plus all lifts in the US require you to submit and estimate and "as shipped" weight in pounds.
ASME - American Society of Mechanical Engineers requires all your calculations for pressure vessel to be in imperial and they don't allow a computer print out. All calculations must be shown in full by hand, and checked by hand. You can personally check the numbers on a computer, but you can't submit your calculations for a code stamp from a computer program.
It works in our industry and never a problem so really not going to screw with it. Plus I like I can call to the field and joe dipshit with no schooling at all but 25 years experience on the job can walk within 20 feet of something and call me back and say "Yup it's a 12x65 column" without taking a tape measure to it or a special metric tape measure.
I have done a few jobs that I go to the field and dick around with it and measure some existing steel and realise it's not adding up. Then I have to find which country it was imported from because they don't have standards from country to country. So just because it's Xmm deep and Ymm wide with Zmm thickness web and flange that doesn't tell you where it was from and how to look up the T and K dimensions for fabrication because they change from country to country. Also in the US all structural sizes are 50k psi ad plate 36k unless it's a specially marked alloy. To find out on imported steel it can take an act of congress to find out and it's not unusual for a member to be scrapped and start over because it's cheaper and less hassle than trying to find out. In my experience foreign rolled steel in the EU and Japan seems to be whatever they felt like rolling that day, or they seem to roll to match a job which isn not how it's done in the US. We have standards and you pick what fits the job.
Not a relcation on the metric system as it is their fucked up standards or lack of, but why we just avoid it to make shit simpler on our end.
