For flanges checkout ISO 7005. This includes dimensions and pressure ratings for both DIN 2615 flanges, and ASME B16.5 flanges (only now 150# is called PN20)
For piping and pressure vessel codes the "new approach" includes development of EN codes for both:
Both are preliminary but are due to be released in final versions this summer I'm told. As they seem to have been rushed through (as discussed by Fawkes in the CEN forum) there are probably still many errors. The piping code which I have seen is based on a mixture of ASME/DIN and BS standards for the various sections, e.g. flange design as in ASME/BS, branch design as in BS, etc.
prEN13480, part 1 to 5) - the new piping code
prEN13445, part 1 to 7) - the new pressure vessel code
For fittings I don't know of any common standards but butt welding fittings are covered by DIN 2605, 2609, 2615, 2616 and 2617. These fittings are not the same as per ASME B16.9, except for main dimensions.
Valves cannot be compared for dimensional standards as the DIN and ASME pressure ratings are not the same. Furthermore DIN have several dimensions for each combination of valve type, size and rating whereas ASME normally have only one or two.
For materials checkout all the threads in the Materials engineering forum with links to web sites. There are lots of comparison tables around with suitable substitutions, but no exact cross reference list, as there are typically small variations in chemical composition from ASME to DIN.
Fawkes
I had never heard of EN 1902 so I looked it up at
(german standard supplier)
It came up with the title:
"Adhesives - Test method for adhesives for floor coverings and wall coverings "
This doesn't look much like flanges.
Can you tell more about this?
Regards
Mogens