I need a Ø.500 (nominal) x 2.00 lg. unhardened dowel pin. It is to be used to fixture a weldment together and the root of the welds will be consuming part of the dowel pin (bevels on the plate being fixtured) so I would like to find something unhardened and a material that will be compatible with sub arc welding. The base of the weldment which the pin will be pressed into is 8630 forged steel. The tangs which are being fixtured and welded on are 2.25 thick HR Weldox 130 (900 mPA) plate. The only off the shelf dowel pins I have found so far are either 11L17 or 1215, neither of which I want to throw in the root of these weldments. I will use a standard hardened dowel pin if I have to but I haven't found a vendor yet who knows exactly what the material in those things are.
A standard Ø.50 dowel pin runs Ø.5002±.0001 size-wise. I want these kind of tolerances to make this work. Anyone know where I can find something like this? Plant production has already given me a reda$$ when I suggested they make the dowel pins themselves.
Thanks in advance