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Old July 16th 11, 01:28 AM posted to alt.home.repair
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Default Copper water pipe: What's the diff between LX and MX ???

I'm at the home despot today (here in canada) and I'm wondering how much
copper pipe is costing (on a per pound basis) as a multiple of the going
market rate for copper (about 4 - 4.5 dollars per pound).

So I'm looking at 12-foot, 1/2 inch copper pipe.

I see some for $24, and some for $13.69. One is labelled "LX", the
other as "MX".

They look and weigh about the same.

I figure a 12-foot piece weighs about 2 lbs (maybe 3 tops?) so there's
about $8 or $9 worth of "raw" copper in these pipe sections that are
retailing for $14 to $24 each.

But what's the difference between this LX and MX marking?

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Old July 16th 11, 01:34 AM posted to alt.home.repair
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Default Copper water pipe: What's the diff between LX and MX ???


Home Guy wrote:

I'm at the home despot today (here in canada) and I'm wondering how much
copper pipe is costing (on a per pound basis) as a multiple of the going
market rate for copper (about 4 - 4.5 dollars per pound).

So I'm looking at 12-foot, 1/2 inch copper pipe.

I see some for $24, and some for $13.69. One is labelled "LX", the
other as "MX".

They look and weigh about the same.

I figure a 12-foot piece weighs about 2 lbs (maybe 3 tops?) so there's
about $8 or $9 worth of "raw" copper in these pipe sections that are
retailing for $14 to $24 each.

But what's the difference between this LX and MX marking?


Wall thickness. There are types K, L and M in order from thickest wall
to thinnest wall. If you have "aggressive" water that corrodes pipes,
the L will last longer, if your water isn't a problem, the M is cheaper.
Type K isn't normally seen in regular plumbing use. There is definitely
a weight difference between types, but you won't readily notice it by
hand.
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Old July 24th 11, 03:08 PM posted to alt.home.repair
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First recorded activity by DIYBanter: Jul 2011
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Default Copper water pipe: What's the diff between LX and MX ???

In case no one else answered this, here is a comparison chart. I have no
idea what the X designation might be (I've not ever heard it before). Use
of type K, L, and M copper is very common terminology.


http://www.engineeringtoolbox.com/as...bes-d_779.html



"Home Guy" wrote in message ...

I'm at the home despot today (here in canada) and I'm wondering how much
copper pipe is costing (on a per pound basis) as a multiple of the going
market rate for copper (about 4 - 4.5 dollars per pound).

So I'm looking at 12-foot, 1/2 inch copper pipe.

I see some for $24, and some for $13.69. One is labelled "LX", the
other as "MX".

They look and weigh about the same.

I figure a 12-foot piece weighs about 2 lbs (maybe 3 tops?) so there's
about $8 or $9 worth of "raw" copper in these pipe sections that are
retailing for $14 to $24 each.

But what's the difference between this LX and MX marking?



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