Copper tube Types K, L, M and DWV (ASTM B88 / B306): OD, wall and ID, 1/4 to 12 in, + 100 mm hollow sections

length

307.97 mm

width

307.97 mm

height

100.0 mm

Notes

• Copper water tube is sold by nominal size, which is not a measured dimension: the actual outside diameter is the nominal size + 1/8 in at every size in the tables (1/2 in is 0.625 in, 2-1/2 in is 2.625 in, 6 in is 6.125 in). The type letter only changes the wall: Type K is the thickest, Type L is the medium wall, Type M is thinner, and DWV (drain, waste, vent) is the thinnest of all (Zoro: very thin wall, for drain-waste-vent use only). Type K and L are made in 1/4 to 12 in, Type M from 3/8 to 12 in, DWV from 1-1/4 to 8 in in the tables read.
• ASTM B88 covers seamless water tube (K, L, M); ASTM B306 covers DWV tube. The standards themselves were not read. The numbers are Engineers Edge's table (inch, OD, ID, wall for all four types); Engineering ToolBox prints the same Type K table (18 sizes, OD, wall and ID equal), and Zoro prints the same K / L / M IDs for 1/4 to 3 in (every value equal). In every row of the Engineers Edge table the ID equals OD − 2 × wall to within 0.001 in (checked in this script) except one: its DWV 3 in row prints an ID of 3.030 in, where 3.125 − 2 × 0.045 is 3.035 in; the wall 0.045 agrees with the weight sheet, so the ID shown for that row is the derived 3.035. Millimetres are inches × 25.4, rounded to 0.01.
• Weight per foot is from a copper-tube weight sheet (title 'Copper Tube for Plumbing and Mechanical Applications', 2022-04-06; the maker is not named in the text read; the column is headed WT/FT and no unit is printed, read here as pounds per foot). It is not a second source for the walls, but it is consistent with them: weight ÷ ((OD − wall) × wall) is constant to within 0.8 % across every size of each type (a check made here, not a published statement).
• 1/4 to 2 in Type L and M are on copper-pipe-type-l-m; the Type L / M rows here repeat them so one table covers every size. Plumbers call this 'copper pipe' and 'copper tube'; the tables here are the water-tube sizes (nominal + 1/8 in OD).
• Files: 100 mm hollow sections of Type K (all 18 sizes), Type L and M from 2-1/2 to 6 in, and DWV (all 8 sizes). They are plain annuli at the published OD and wall; the length is Xem's example length. Sweat (solder) fittings grip this OD: see copper-solder-fittings-b16-22-sizes. EN 1057 metric tube (15 mm, 22 mm, 28 mm) is a different size system: copper-tube-metric-en-1057.

Copper tube Types K, L, M and DWV (ASTM B88 / B306): OD, wall and… size chart

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Free files

★ Free files 38 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

Plain text: sheet.txt · JSON: /api/geometry?object=copper-tube-types-k-l-m-dwv-astm-b88-b306

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