M
Type K, L, M and DWV copper tubes are designated in ASTM standard sizes. Copper pipe of these types has an actual outside diameter that 1/8 inch larger than norminal size. For example, 1/4 norminal tyoe K pipe's actual O.D. is 3/8 inches (1/4+1/8). For same norminal size, type K copper pipe's wall thickness is larger than type L copper pipe, and type L copper pipe's wall thickness is thicker than type M copper pipe.
Type M Copper Pipe Applications
- Underground Water Services -- Type M hard copper tube for straight lengths joined with fittings.
- Water Distribution Systems -- Type M copper tube for above and below ground
- Chilled Water Mains -- Use type M for all sizes.
- Heating -- For radiant panel and hydronic heating and for snow melting systems, type M copper tube (straight lengths) are used. For water heating and low pressure steam, type M for all sizes are used.
- Fire Sprinkler Systems -- Use type M hard copper pipe, where bending is required. Types K, L and M copper pipe are all accepted by NFPA.
- Compressed Air -- Use type M copper pipe as per requried internal working pressures.
- Low Temperature Applications
Winland Plumbing Tubing (Type M)
The copper tube specifications refer to ASTM B88 type M, used for plumbing industry. The datas include copper tube outside diameter, temper, wall thickness, and etc. of both imperial and metric units.
For plumbing copper tubing, people used to classify the tubes by wall thickness. There are type K, type L, type M and type DWV copper tubes. Type M tubes have the second thinnest wall thickness, which is thinner than type K tube and thinner than type L tube. Compared to DWV tube, type M tube is thicker.
The size of wall thickness effects copper tube's mechanical strength, working pressure. Type M copper tubes are suitable for pipeline systems won't strickly require strength & protection.
Normally tubes of this type are applied for residential water supply projects. The tubes are just suitable for the project, and cost less.
Winland's copper tubes are manufacturered with pure copper (C12200, 99.9% cu plus 0.015~0.040% p), outside diameter of the tubes are the same, it means they can use with same size copper fittings for soldering and connection.
Dimensions listed below are for rigid tubes, aslo known as hard temper (H58) copper tube, supply in straight length form (5.8 meters or as request). If you need customized dimensions or annealed temper products, please feel free to email us.
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Type M Plumbing Copper Tube Size Chart (ASTM B88)
| Nominal Tube Size | Actual Outside Diameter | Actual Wall Thickness | Theoretical Weight | Actual Outside Diameter | Actual Wall Thickness | Theoretical Weight | Tube Temper |
|---|---|---|---|---|---|---|---|
| 3/8 inch | 1/2 inch | 0.025 inch | 0.145 lb/ft | 12.70 mm | 0.635 mm | 0.215 kg/m | H58 |
| 1/2 inch | 5/8 inch | 0.028 inch | 0.204 lb/ft | 15.88 mm | 0.711 mm | 0.303 kg/m | H58 |
| 3/4 inch | 7/8 inch | 0.032 inch | 0.329 lb/ft | 22.23 mm | 0.813 mm | 0.489 kg/m | H58 |
| 1 inch | 1-1/8 inch | 0.035 inch | 0.464 lb/ft | 28.58 mm | 0.889 mm | 0.691 kg/m | H58 |
| 1-1/4 inch | 1-3/8 inch | 0.042 inch | 0.682 lb/ft | 34.93 mm | 1.067 mm | 1.015 kg/m | H58 |
| 1-1/2 inch | 1-5/8 inch | 0.049 inch | 0.940 lb/ft | 41.28 mm | 1.245 mm | 1.400 kg/m | H58 |
| 2 inch | 2-1/8 inch | 0.058 inch | 1.459 lb/ft | 53.98 mm | 1.473 mm | 2.172 kg/m | H58 |
| 2-1/2 inch | 2-5/8 inch | 0.065 inch | 2.026 lb/ft | 66.68 mm | 1.651 mm | 3.015kg/m | H58 |
| 3 inch | 3-1/8 inch | 0.072 inch | 2.676 lb/ft | 79.38 mm | 1.829 mm | 3.983 kg/m | H58 |
| 3-1/2 inch | 3-5/8 inch | 0.083 inch | 3.579 lb/ft | 92.08 mm | 2.108 mm | 5.326 kg/m | H58 |
| 4 inch | 4-1/8 inch | 0.095 inch | 4.661 lb/ft | 104.78 mm | 2.413 mm | 6.936 kg/m | H58 |
| 5 inch | 5-1/8 inch | 0.109 inch | 6.657 lb/ft | 130.18 mm | 2.769 mm | 9.907 kg/m | H58 |
| 6 inch | 6-1/8 inch | 0.122 inch | 8.916 lb/ft | 155.58 mm | 3.099 mm | 13.269 kg/m | H58 |
| 8 inch | 8-1/8 inch | 0.170 inch | 16.463 lb/ft | 206.38 mm | 4.318 mm | 24.500 kg/m | H58 |
| 10 inch | 10-1/8 inch | 0.212 inch | 25.584 lb/ft | 257.18 mm | 5.385 mm | 38.074 kg/m | H58 |
| 12 inch | 12-1/8 inch | 0.254 inch | 36.708 lb/ft | 307.98 mm | 6.452 mm | 54.628 kg/m | H58 |
M Product List
| Part Number | Outside Diameter | Wall Thickness | Theoretcial Weight |
|---|---|---|---|
| 22.23mm | 0.81mm | 0.49kg/m | |
| 28.58mm | 0.89mm | 0.69kg/m | |
| 12.70mm | 0.64mm | 0.22kg/m | |
| 15.88mm | 0.71mm | 0.30kg/m | |
| 22.23mm | 0.81mm | 0.49kg/m | |
| 28.58mm | 0.89mm | 0.69kg/m | |
| 12.70mm | 0.64mm | 0.22kg/m | |
| 15.88mm | 0.71mm | 0.30kg/m | |
| 307.98mm | 6.45mm | 54.63kg/m | |
| 257.18mm | 5.39mm | 38.07kg/m | |
| 206.38mm | 4.32mm | 24.50kg/m | |
| 155.58mm | 3.10mm | 13.27kg/m | |
| 130.18mm | 2.77mm | 9.91kg/m | |
| 104.78mm | 2.41mm | 6.94kg/m | |
| 92.08mm | 2.11mm | 5.33kg/m | |
| 79.38mm | 1.83mm | 3.98kg/m | |
| 66.68mm | 1.65mm | 3.02kg/m | |
| 53.98mm | 1.47mm | 2.17kg/m | |
| 41.28mm | 1.25mm | 1.40kg/m | |
| 34.93mm | 1.07mm | 0.68kg/m | |
| 28.58mm | 0.89mm | 0.69kg/m | |
| 22.23mm | 0.81mm | 0.49kg/m | |
| 15.88mm | 0.71mm | 0.30kg/m | |
| 12.70mm | 0.64mm | 0.22kg/m |