Saturday, December16, 2017 L-36.com

Copper Tube Dimensions



Note: Inside dimension depends on tube class of which there are several. The first table shows only the outside dimensions, which are the same for all the listed tube types and are 1/8 inch more than the tube size. Thus, if the wall thickness were 1/16 inch, the inside dimension would be the the tube size. But wall thickness vary by tube size so in general tubes smaller than one inch will be a bit bigger inside than the size and those larger than one inch a bit smaller than their tube size.

The more detailed tables are shown below.

Size
Outside Dimension
1/43/80.375
3/81/20.500
1/25/80.625
5/83/40.750
3/47/80.875
11 1/81.125
1 1/41 3/81.375
1 1/21 5/81.625
22 1/82.125
2 1/22 5/82.625
33 1/83.125
3 1/23 5/83.625
44 1/84.125
55 1/85.125
66 1/86.125

Dimensions of copper tubes according ASTM B88 STANDARD SPECIFICATION FOR SEAMLESS COPPER WATER TUBE can be found in the table below:

Type K

Nominal Size
(inches)
Actual Outside Diameter
(inches)
Tolerance on Outside Diameter
(inches)
Wall Thickness
(inches)
Weight
(lb/ft)
Annealed1) Drawn2) Nominal Tolerance
1/4 3/8 0.375 0.002 0.001 0.035 0.0035 0.133
3/8 1/2 0.500 0.0025 0.001 0.049 0.005 0.269
1/2 5/8 0.625 0.0025 0.001 0.049 0.005 0.344
5/8 3/4 0.750 0.0025 0.001 0.049 0.005 0.418
3/4 7/8 0.875 0.003 0.001 0.065 0.006 0.641
1 1 1/8 1.125 0.0035 0.0015 0.065 0.006 0.837
1 1/4 1 3/8 1.375 0.004 0.0015 0.065 0.006 1.04
1 1/2 1 5/8 1.625 0.0045 0.002 0.072 0.007 1.36
2 2 1/8 2.125 0.005 0.002 0.083 0.008 2.06
2 1/2 2 5/8 2.625 0.005 0.002 0.095 0.010 2.92
3 3 1/8 3.125 0.005 0.002 0.109 0.011 4.00
3 1/2 3 5/8 3.625 0.005 0.002 0.120 0.012 5.12
4 4 1/8 4.125 0.005 0.002 0.134 0.013 6.51
5 5 1/8 5.125 0.005 0.002 0.160 0.016 9.67
6 6 1/8 6.125 0.005 0.002 0.192 0.019 13.87

Copper tubes of type K are thick walled, much thicker than type L and M and are used for domestic water-, service and distribution-, fire protection-, solar-, fuel and oil-, HVAC-, compressed air-, oxygen-, LPG gas-, snow melting-, steam- and vacuum-systems.

Be careful with copper tubes and natural gas. Due to odor additives, moisture content and type of solders used the tubes may crack. Copper tubes is not allowed by code in the US for natural gas distribution.

Copper tubes of type K can be used sweat, flared and compression fittings. Available in hard and soft types.

Type L

Nominal Size
(inches)
Actual Outside Diameter
(inches)
Tolerance on Outside Diameter
(inches)
Wall Thickness
(inches)
Weight
(lb/ft)
Annealed1) Drawn2) Nominal Tolerance
1/4 3/8 0.375 0.002 0.001 0.030 0.003 0.126
3/8 1/2 0.500 0.0025 0.001 0.035 0.004 0.198
1/2 5/8 0.625 0.0025 0.001 0.040 0.004 0.285
5/8 3/4 0.750 0.0025 0.001 0.042 0.004 0.362
3/4 7/8 0.875 0.003 0.001 0.045 0.004 0.455
1 1 1/8 1.125 0.0035 0.0015 0.050 0.005 0.655
1 1/4 1 3/8 1.375 0.004 0.0015 0.055 0.006 0.884
1 1/2 1 5/8 1.625 0.0045 0.002 0.060 0.006 1.14
2 2 1/8 2.125 0.005 0.002 0.070 0.007 1.75
2 1/2 2 5/8 2.625 0.005 0.002 0.080 0.008 2.48
3 3 1/8 3.125 0.005 0.002 0.090 0.009 3.33
3 1/2 3 5/8 3.625 0.005 0.002 0.100 0.010 4.29
4 4 1/8 4.125 0.005 0.002 0.114 0.011 5.38
5 5 1/8 5.125 0.005 0.002 0.125 0.012 7.61
6 6 1/8 6.125 0.005 0.002 0.140 0.014 10.20

Standard copper tubes of type L are used for interior above ground plumbing - domestic water-, service and distribution-, fire protection-, solar-, fuel and oil-, HVAC-, compressed air-, LPG gas-, snow melting- and vacuum-systems.

Copper tubes of type L can be used with sweat, compression and flare fittings. Only seat and flare fittings are legal for gas lines. Available in hard and soft types.

Type M

Nominal Size
(inches)
Actual Outside Diameter
(inches)
Tolerance on Outside Diameter
(inches)
Wall Thickness
(inches)
Weight
(lb/ft)
Annealed1) Drawn2) Nominal Tolerance
1/4 3/8 0.375 0.002 0.001 0.106
3/8 1/2 0.500 0.0025 0.001 0.025 0.002 0.144
1/2 5/8 0.625 0.0025 0.001 0.028 0.003 0.203
5/8 3/4 0.750 0.0025 0.001 0.263
3/4 7/8 0.875 0.003 0.001 0.032 0.003 0.328
1 1 1/8 1.125 0.0035 0.0015 0.035 0.004 0.464
1 1/4 1 3/8 1.375 0.004 0.0015 0.042 0.004 0.681
1 1/2 1 5/8 1.625 0.0045 0.002 0.049 0.005 0.94
2 2 1/8 2.125 0.005 0.002 0.058 0.006 1.46
2 1/2 2 5/8 2.625 0.005 0.002 0.065 0.006 2.03
3 3 1/8 3.125 0.005 0.002 0.072 0.007 2.68
3 1/2 3 5/8 3.625 0.005 0.002 0.083 0.008 3.58
4 4 1/8 4.125 0.005 0.002 0.095 0.010 4.66
5 5 1/8 5.125 0.005 0.002 0.109 0.011 6.66
6 6 1/8 6.125 0.005 0.002 0.122 0.012 8.91

Copper tubes of type M are used for interior domestic water-, service and distribution-, fire protection-, solar-, fuel and oil-, HVAC-,  snow melting- and vacuum-systems. Wall thickness less than type K and L.

Copper tubes type M are normally used with flare fittings. Available in soft and hard types.

  • 1 in (inch) = 25.4 mm

1) Annealed tube is suitable for use with flared or compression fittings, and with solder-type fittings, provided rounding and sizing of the tube ends is performed where needed.

2) Drawn temper tube is suitable for use with solder-type fittings. Types A and B tube, in the drawn temper, are suitable for use with certain types and sizes of compression fittings. The standard length for drawn tubes are 20 ft (6.096 m).

The B88 specification covers seamless copper water tube suitable for general plumbing, similar applications for the conveyance of fluids, and commonly used with solder, flared, or compression-type fittings. The type of copper water tube suitable for any particular application is determined by the internal or external fluid pressure, by the installation and service conditions, and by local requirements. Means of joining or bending are also factors that affect the selection of the type of tube to be used.

This specification is the imperial companion of Specification B 88M.


Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.