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For example I have just put central heating in a house I am renovating. I have used copper piping. I prefer copper and can afford it but if copper was 5x its current price I could use PVC or PEX piping currently cheaper than copper is now.
Aluminium can replace copper it has 60% of the conductivity of Copper but you just use a thicker wire and Aluminium is a lot lighter more abundant and cheaper than Copper.
Overhead cables are made from Aluminium already because they are lighter than Copper.
Their are advantages and disadvantages but it is surprising what manufactures when they want to control costs. Copper is also reusable.
Not saying Copper won't go up but be careful when you have people claiming 50k per ton.
I think plastic is the standard now isn't it, anyway? The main demand for copper is in power transmission....
My plumber says he rarely does plastic installations nearly all copper at the moment. Last new building estate I looked at around about 3 months ago were all putting copper in but I won't argue I wouldn't be surprised if that isn't changing.
Copper is used in wind turbines but they are already looking at replacing it with Aluminium.
You might be able to use pvc at present Gray but there are likely to be restrictions on some plastics in the future ceratainly in water supply as most peapole don't wish to end up half human, half synthetic. If Edzi is listening could he please note that I do not recognise any religious m-j, Judaism included ( unless of course it involves someone giving me an expensive present at certain times of the year). I am also NOT an optimist. I just do the figures and weigh the possibilities.
Only silver is a better conductor that copper (touch pricey) and the next best thing after copper is aluminium which has 'dis-similar metal' issues which can lead to corrosion and its higher resistance leads to increased transmission losses. I don't know of any suitable alloys but there may be some I've not heard about.
Agree Shuvlin about plastics but they are everywhere anyway do we replace all plastics? Gotreal asked for alternatives I provided some there are more manufacturers can be quite nimble when they have to be.
I firmly believe plastic is far more of a problem in society than climate change ever will be but that's a discussion for elsewhere.
Agree Cygnus advantages and disadvantages. The point I was making is beware people claiming obscene prices like 50k per ton.
Just an aside Shuvlin many years ago I started life as an analytical research chemist and worked on a product called Meta-Bis Ortho Chloro Aniline it was a curing agent for plastics.
Highly cancerous I am still tested every year even now and it was 40 years ago when I worked on it. A number of people I worked with have caught cancer and some have died from it.
I am one of the lucky ones at the moment but didn't have as much exposure as they did even though there were stringent safety precautions involved.
Sorry to hear that Gray and hopefully you will have dodged that bullet.
Thank you Shuvlin I appreciate that hope so too.
Here here Gray. Surprising what went on just a few decades ago. My dad used to do coatings similar to artex and he mixed the stuff up and then put his hand in a bag of asbestos and chucked it into the mix on a daily basis. He was diagnosed with terminal lung cancer a couple of weeks before my wife's diagnosis. He also has been a chain smoker since he was 12 and is now 83 so it probably wasn't the asbestos that got to him (he's doing ok - had12 sessions of radiotherapy to shrink the tumour and hopefully can enjoy his last months/ years pain free).
On another sad note - pity Frogkid has come to his senses and taken a vow of silence - good poster, sensible and level headed. And now to complete my eclectic mix of posting topics - just sold my other share (not selling my JPM china growth and income though - very good moves recently) to free up more for JLP -charts show we are trapped between strong support just above 6.8p and the psychological barrier of 7p. Stochastics have been excellent indicators for JLP recently and are pointing upwards, bollinger says it's going to break one way or the other in the next week. MacD is tantalisingly close to confirming another move up but not confirmed. Put in one third of my freed up cash at 6.94 and holding the rest back for another few hours or even a day to see if that MacD can be confirmed. GLA and take care of your health Gray1.
The conductivity and corrosion resistance of aluminium is much improved in aluminium graphite composites. I got quite interested in this and lobbed a modest chunk of cash into Tirupati (TGR) which promptly tanked (see my Avatar). Still looking for an appropriate windowledge to jump off because of that one.
Kalan,
Good to hear your dad is still going. White asbestos was used in artex which wasn't as bad as brown asbestos different fibre size. White more easily expelled from the lungs and was harder to attach to them. Still toxic though but needed more exposure to it dipping hands into it would do it though. That was the industry norm then though. How times change.
Thanks for the chart indicators Kalan much appreciated.
Keep posting Frogkid all opinions have merit even if we don't all agree.
Jonah I feel you still wake up screaming when I think about Chariot oil and gas. No I have got over it really. Well I am on reduced medication anyway:)
Gotreal wasn't having a go at you the article you posted about copper going up does have some merit just the numpty with his 50k prediction.