Are you just speaking of a galvanic corrosion chart John? See here. <https://structx.com/Material_Properties_001.html>
Happy Friday everyone, Nick > On Oct 6, 2022, at 12:51 PM, John via RE-wrenches > <re-wrenches@lists.re-wrenches.org> wrote: > > There used to be a chart – supplied years ago – that listed all the metals > and showed what was compatible – or not compatible with different metals. > Sadly I can’t seem to find it, but one of the older guys might still have a > copy of that chart. > Cheers – John Veix, N.Z. > > From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org > <mailto:re-wrenches-boun...@lists.re-wrenches.org>> On Behalf Of Christopher > Warfel via RE-wrenches > Sent: Friday, 7 October 2022 2:42 am > To: re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org> > Cc: Christopher Warfel <cwar...@entech-engineering.com > <mailto:cwar...@entech-engineering.com>> > Subject: Re: [RE-wrenches] Butt End Connector Warning > > You cannot use them with Al. The connection will disintegrate over time. I > have pictures somewhere of mismatching rail bonding connectors that were gone > in a year. Chris > On 10/6/2022 9:32 AM, Drake Chamberlin via RE-wrenches wrote: >> Our electrical supplier seamlessly transitioned from crimp on butt end >> connectors, that were listed for CU and AL, to unmarked ones that were >> approved for copper only. >> >> I became concerned since there was no marking. Calling two electrical >> suppliers, the guys at the counter had to look up the device to learn that >> they were listed for copper only. Talking to one of the counter guys, he >> agreed that electricians were probably using these for aluminum. >> >> Since the barrels will be insulated, it is not likely that inspectors will >> see them. The connectors are made of coated copper. I wonder how much of a >> problem this will be. >> >> Drake >> >> >> >> >> > -- > Christopher Warfel > ENTECH Engineering, Inc. > PO Box 871, Block Island, RI 02807 > 401-466-8978 > <image001.jpg> <http://entech-engineering.com/> > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > <http://re-wrenches.org/> > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > <https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org> > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > http://www.members.re-wrenches.org <http://www.members.re-wrenches.org/>
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
