# Differance between copper grades. **URL:** \ **Category:** NYSpeed Off Topic\ **Created:** [August 28, 2008, 3:24pm UTC](https://forums.speedlife.net/t/differance-between-copper-grades/54030 "2008-08-28T15:24:48Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![PureXTC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/purextc/32/5223_2.png) [@PureXTC](https://forums.speedlife.net/u/PureXTC)\ **Post date:** [August 28, 2008, 3:24pm UTC](https://forums.speedlife.net/t/differance-between-copper-grades/54030/1 "2008-08-28T15:24:48Z")
Anyone know the differance between no. 1 and no.2 copper? Is there a no.3? ---
**Author:** ![BDR5oh](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bdr5oh/32/7315_2.png) [@BDR5oh](https://forums.speedlife.net/u/BDR5oh)\ **Post date:** [August 28, 2008, 3:45pm UTC](https://forums.speedlife.net/t/differance-between-copper-grades/54030/2 "2008-08-28T15:45:11Z")
1 is like copper pipe … bare copper 2 is copper wire that still has the jacket still on it ---
**Author:** ![pdubya](https://avatars.discourse-cdn.com/v4/letter/p/f07891/32.png) [@pdubya](https://forums.speedlife.net/u/pdubya)\ **Post date:** [August 28, 2008, 8:24pm UTC](https://forums.speedlife.net/t/differance-between-copper-grades/54030/3 "2008-08-28T20:24:45Z")
M copper is the standard grade of copper, and is widely used for most plumbing needs. L copper is the next step up, it has a thicker wall, and costs a little bit more. K copper is the thickest and is normally used for direct bury, like for water service into a building. There is also a DWV copper, which is available in larger sizes and is used for drains, waste lines and vents. google. edit reading \> me. sorry ---
**Author:** ![AngryHero](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/angryhero/32/7495_2.png) [@AngryHero](https://forums.speedlife.net/u/AngryHero)\ **Post date:** [August 28, 2008, 8:40pm UTC](https://forums.speedlife.net/t/differance-between-copper-grades/54030/4 "2008-08-28T20:40:42Z")
> [@BDR5oh](#): > > 1 is like copper pipe … bare copper > > 2 is copper wire that still has the jacket still on it nope. 2 is dirty copper.Say you burned copper wire with insulation and it was blacker then normal.