K
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.
Winland Plumbing Tubing (Type K)
The copper tube specifications refer to ASTM B88 type K, used for water supply system. 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 K tubes have thickest thickness than type M L tube.
The size of wall thickness effects copper tube's mechanical strength, working pressure. The thickest wall makes type K copper tubes the most durable & reliable type.
Normally tubes of this type are applied for underground watersupply system's main pipeline, hotwater pipline, sprinkler systems of commercial plumbing projects.
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 could use with same size copper fittings for soldering and connection.
Dimensions listed below are for rigid temper, 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.
Type K 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 |
|---|---|---|---|---|---|---|---|
| 1/4 inch | 3/8 inch | 0.035 inch | 0.145 lb/ft | 9.53 mm | 0.889 mm | 0.216 kg/m | H58 |
| 3/8 inch | 1/2 inch | 0.049 inch | 0.269 lb/ft | 12.70 mm | 1.245 mm | 0.400 kg/m | H58 |
| 1/2 inch | 5/8 inch | 0.049 inch | 0.344 lb/ft | 15.88 mm | 1.245 mm | 0.512 kg/m | H58 |
| 5/8 inch | 3/4 inch | 0.049 inch | 0.418 lb/ft | 19.05 mm | 1.245 mm | 0.622 kg/m | H58 |
| 3/4 inch | 7/8 inch | 0.065 inch | 0.641 lb/ft | 22.23 mm | 1.651 mm | 0.954 kg/m | H58 |
| 1 inch | 1-1/8 inch | 0.065 inch | 0.839 lb/ft | 28.58 mm | 1.651 mm | 1.248 kg/m | H58 |
| 1-1/4 inch | 1-3/8 inch | 0.065 inch | 1.037 lb/ft | 34.93 mm | 1.651 mm | 1.543 kg/m | H58 |
| 1-1/2 inch | 1-5/8 inch | 0.072 inch | 1.361 lb/ft | 41.28 mm | 1.829 mm | 2.026kg/m | H58 |
| 2 inch | 2-1/8 inch | 0.083 inch | 2.063 lb/ft | 53.98 mm | 2.108 mm | 3.070 kg/m | H58 |
| 2-1/2 inch | 2-5/8 inch | 0.095 inch | 2.926 lb/ft | 66.68 mm | 2.413 mm | 4.355 kg/m | H58 |
| 3 inch | 3-1/8 inch | 0.109 inch | 4.003 lb/ft | 79.38 mm | 2.769 mm | 5.957 kg/m | H58 |
| 3-1/2 inch | 3-5/8 inch | 0.120 inch | 5.120 lb/ft | 92.08 mm | 3.048 mm | 7.620 kg/m | H58 |
| 4 inch | 4-1/8 inch | 0.134 inch | 6.511 lb/ft | 104.78 mm | 3.404 mm | 9.690 kg/m | H58 |
| 5 inch | 5-1/8 inch | 0.160 inch | 9.671 lb/ft | 130.18 mm | 4.064 mm | 14.392 kg/m | H58 |
| 6 inch | 6-1/8 inch | 0.192 inch | 13.868 lb/ft | 155.58 mm | 4.877 mm | 20.638 kg/m | H58 |
| 8 inch | 8-1/8 inch | 0.271 inch | 25.909 lb/ft | 206.38 mm | 6.883 mm | 38.558 kg/m | H58 |
| 10 inch | 10-1/8 inch | 0.338 inch | 40.269 lb/ft | 257.18 mm | 8.585 mm | 59.928 kg/m | H58 |
| 12 inch | 12-1/8 inch | 0.405 inch | 57.783 lb/ft | 307.98 mm | 10.289 mm | 85.991 kg/m | H58 |
K Product List
| Part Number | Outside Diameter | Wall Thickness | Theoretcial Weight |
|---|---|---|---|
| 12.70mm | 1.25mm | 0.40kg/m | |
| 9.53mm | 0.89mm | 0.22kg/m |