Copper

[jordanleeds]

Have just taken the plunge and bought the materials for my first copper boiler, now have asked for material certification so that I can put the supporting pack together and present it to the boiler inspector but my supplier doesnt supply certs only a letter stating the material. Is. C101 tube ect. Would this pass muster

[millman]

I thought it was C106 for boilermaking but am most probably wrong, why do you need a supporting pack to present to boiler inspector, I know for steel boilers c of c are required for all materials but as far as I am aware none of this applies to copper boilers at least in UK.

[simplyloco]

Mar 18, 2021 13:41:55 GMT millman said:

I thought it was C106 for boilermaking but am most probably wrong, why do you need a supporting pack to present to boiler inspector, I know for steel boilers c of c are required for all materials but as far as I am aware none of this applies to copper boilers at least in UK.

Agreed: I'm hopefully wrong, but perhaps a boiler inspector has developed ideas above and beyond his station...?

[chester]

When i tried to build a boiler fo a jenny lind about 17 years the club sectary had terminal cancer and was selling his tools and equipment off and he gave me a copy of his certificate for the copper i bought of him for a boiler.

[jo479]

The copper needs to be certified if the boiler's going to be made commercially, certificates have to be produced for CE marking by the manufacturer, if you're doing it yourself there's no need, you could keep them for posterity, but the Boiler Inspector won't ask for them. I certainly wouldn't.

[kipford]

Looking at the Boiler test code, there is no requirement that I can see for copper materials to be accompanied by a Certificate of Conformity or any form of receipt. A discussion with one of our boiler inspectors some time ago also confirmed this. I have the main tube for my boiler which came from Reeves and also only have an invoice stating the material type and price. Interesting I bought the tube about 3 years ago to hedge against the price of copper increasing, it cost £91. Today it would be £130!
Dave

[nonort]

All of the above are true providing you are not going to weld the boiler.

[runner42]

I am aware that copper is an element so copper is copper there is no good quality or bad quality copper the only issue is purity, so that begs the question what impurities are possible in the processing the ore? I suppose that other additions are possible, so what you may have is a copper alloy again what copper alloys are possible? The BI will ask where the copper was purchased so if he is aware of the supplier then that is all that is necessary.

Brian

[uuu]

Try telling that to the Hi-fi salesman that insists sir must realise that his copper spaghetti is so much better than everyone else's copper and that explains the ludicrous price.

Wilf

[simplyloco]

Mar 21, 2021 8:27:39 GMT uuu said:

Try telling that to the Hi-fi salesman that insists sir must realise that his copper spaghetti is so much better than everyone else's copper and that explains the ludicrous price.

Wilf

Some forty years ago, while an impoverished corporal, I purchased a second hand hifi system comprising an  Acoustical Manufacturing (Quad) 33-303 amp and pre-amp, FM3 tuner, Revox A77 tape deck - the one with the big reels- Thorens deck, SME arm, Shure V15-3 cartridge, and the jewel in the crown, a pair of Quad electrostatic speakers. I then proceeded to bore the pants off everyone who I forced to listen to it. I didn't succumb to the copper trick though...

[uuu]

Ah, yes - that brings back some memories. I sold my speakers for an unbelievable price on ebay, even though I had said they were knackered. I sill have the amps and deck in boxes hiding somewhere. I might have to get them out and dust them off.

Wilf

[JonL]

I love the 303. I had a 306, and I'm building a 405-2 clone at work. Sorry to digress!

[dscott]

Wilf [/quote]Some forty years ago, while an impoverished corporal, I purchased a second hand hifi system comprising an  Acoustical Manufacturing (Quad) 33-303 amp and pre-amp, FM3 tuner, Revox A77 tape deck - the one with the big reels- Thorens deck, SME arm, Shure V15-3 cartridge, and the jewel in the crown, a pair of Quad electrostatic speakers. I then proceeded to bore the pants off everyone who I forced to listen to it. I didn't succumb to the copper trick though...

[/quote]

Back in 1980 we as a tour of factories did the QUAD visit.
All very hands on and hand built.
The speaker section was interesting where they had clothes pegs on string with weights all round the frame.
This gave the right tension and they would attach. 400 volts was mentioned!!
Each pair tested and YES they did sound perfect.
I loved the filler section on the aluminum boxes. Eventually a wonderful surface was achieved.

David and Lily.

[jordanleeds]

Apologies yes the tube ordered is c106 but with no certification.

There has been a lot of very bad copper of recent years floating about that does not actually meet the specifications for the grade and it is something I am somewhat aware of professionally

[RGR 60130]

Different boiler inspectors have been known to have different interpretations of the rules. I'd suggest talking to the boiler inspector who will inspect your boiler.

Reg

[ejparrott]

There is no requirement for material certification for copper boilers under the club scheme, but there's nothing stopping an owner having and keeping that information for their own record. Likewise, there is no specific grade that must be used, unless it is to be TIG welded in which case it must be C106, but then you're into the realms of welders certificates anyway.