ASTM B88 Copper Water Pipes and Gas Tubes

ASTM B88 Copper Water Pipes and Tubes are superior quality of seamless copper pipes that are used in the supply of water, plumbing, HVAC, and general engineering uses. These pipes are also known as strong, corrosion resistant and smooth internally making them efficient in fluid flow and their longevity. They suit residential and commercial applications, are highly durable and readily fabricated. Being produced according to the ASTM B88 standards, they assure the rigid quality and reliability of performance on all applications.

Types of ASTM B88 Copper Water Pipes and Gas Tubes

ASTM B88 Copper Water Pipes and Gas Tubes

Type K – Copper Pipe

Type L – Copper Pipe

Type M – Copper Pipe

  • Type K – Thickest walls, highest pressure rating
  • Type L – Medium wall, widely used for general plumbing
  • Type M – Thinnest wall, lowest pressure rating

Copper Tube Specifications

  • Standard: Seamless Copper Water Tube
  • Application: Plumbing, potable water supply, and distribution
  • Permitted Types: K, L, M
  • Wall Thickness:
    • Type K = Thickest
    • Type L = Intermediate
    • Type M = Thinnest
  • Base Alloy: C12200 (Phosphorus-deoxidized copper)
  • Copper Purity: ≥ 99.9% (Cu + Ag combined)
  • Phosphorus Content: 0.015% – 0.040%
  • Available Sizes: ¼″ to 12″ nominal
  • Tempers:
    • Type K & L: Drawn (hard) ¼″–12″, Annealed (soft coils) ¼″–2″
    • Type M: Drawn (hard) ¼″–12″ only

Chemical Compositions

Element% Composition
Copper (Cu + Ag)≥ 99.9%
Phosphorus (P)0.015 – 0.040%

Seamless Copper Water Tubes – Dimensions – Type K

Nominal Size
(inches)
Actual Outside DiameterTolerance on Outside DiameterWall ThicknessWeight
AnnealedDrawnNominalTolerance
(inches)(mm)(inches)(mm)(inches)(mm)(inches)(mm)(inches)(mm)(lb/ft)(Kg/m)
1/43/80.3759.520.0020.05080.0010.02540.0350.8890.00350.08890.1330.20
3/81/20.512.70.00250.06350.0010.02540.0491.240.0050.1270.2690.40
1/25/80.62515.90.00250.06350.0010.02540.0491.240.0050.1270.3440.51
5/83/40.75190.00250.06350.0010.02540.0491.240.0050.1270.4180.62
3/47/80.87522.20.0030.07620.0010.02540.0651.650.0060.1520.6410.95
11 1/81.12528.60.00350.08890.00150.03810.0651.650.0060.1520.8371.25
1 1/41 3/81.37534.90.0040.1020.00150.03810.0651.650.0060.1521.041.55
1 1/21 5/81.62541.30.00450.1140.0020.05080.0721.830.0070.1781.362.02
22 1/82.125540.0050.1270.0020.05080.0832.110.0080.2032.063.07
2 1/22 5/82.62566.70.0050.1270.0020.05080.0952.410.010.2542.924.35
33 1/83.12579.40.0050.1270.0020.05080.1092.770.0110.27945.95
3 1/23 5/83.62592.10.0050.1270.0020.05080.123.050.0120.3055.127.62
44 1/84.1251050.0050.1270.0020.05080.1343.40.0130.336.519.69
55 1/85.1251300.0050.1270.0020.05080.164.060.0160.4069.6714.39
66 1/86.1251560.0050.1270.0020.05080.1924.880.0190.48313.8720.64
ASTM B88 Copper Water Pipes and Gas Tubes

Seamless Copper Water Tubes – Dimensions – Type L

Nominal SizeActual Outside DiameterWeightTolerance on Outside DiameterWall Thickness
AnnealedDrawnNominalTolerance
(inches)(inches)(inches)(mm)(lb/ft)(kg/m)(inches)(mm)(inches)(mm)(inches)(mm)(inches)(mm)
1/43/80.3759.520.1260.1870.0020.05080.0010.02540.030.7620.0030.0762
3/81/20.512.70.1980.2860.00250.06350.0010.02540.0350.8890.0040.102
1/25/80.62515.90.2850.4240.00250.06350.0010.02540.041.020.0040.102
5/83/40.75190.3620.5390.00250.06350.0010.02540.0421.070.0040.102
3/47/80.87522.20.4550.6780.0030.07620.0010.02540.0451.140.0040.102
11 1/81.12528.60.6550.9740.00350.08890.00150.03810.051.270.0050.127
1 1/41 3/81.37534.90.8841.3150.0040.1020.00150.03810.0551.40.0060.152
1 1/21 5/81.62541.31.141.6970.00450.1140.0020.05080.061.520.0060.152
22 1/82.125541.752.6020.0050.1270.0020.05080.071.780.0070.178
2 1/22 5/82.62566.72.483.6870.0050.1270.0020.05080.082.030.0080.203
33 1/83.12579.43.334.9540.0050.1270.0020.05080.092.290.0090.229
3 1/23 5/83.62592.14.296.3810.0050.1270.0020.05080.12.540.010.254
44 1/84.1251055.388.0070.0050.1270.0020.05080.1142.90.0110.279
55 1/85.1251307.6111.330.0050.1270.0020.05080.1253.180.0120.305
66 1/86.12515610.215.180.0050.1270.0020.05080.143.560.0140.356
ASTM B88 Copper Water Pipes and Gas Tubes

Seamless Copper Water Tubes, ASTM B88 Copper Water Pipes and Gas Tubes – Dimensions – Type M

Nominal SizeActual Outside DiameterTolerance on Outside DiameterWall ThicknessWeight
AnnealedDrawnNominalTolerance
(inches)(inches)(inches)(mm)(inches)(mm)(inches)(mm)(inches)(mm)(inches)(mm)(lb/ft)(mm)
1/43/80.3759.520.0020.05080.0010.02540.1060.158
3/81/20.512.70.00250.06350.0010.02540.0250.640.0020.05080.1440.214
1/25/80.62515.90.00250.06350.0010.02540.0280.710.0030.07620.2030.302
5/83/40.75190.00250.06350.0010.02540.2630.391
3/47/80.87522.20.0030.07620.0010.02540.0320.810.0030.07620.3280.488
11 1/81.12528.60.00350.08890.00150.03810.0350.890.0040.1020.4640.691
1 1/41 3/81.37534.90.0040.1020.00150.03810.0421.070.0040.1020.6811.013
1 1/21 5/81.62541.30.00450.1140.0020.05080.0491.240.0050.1270.941.399
22 1/82.125540.0050.1270.0020.05080.0581.470.0060.1521.462.173
2 1/22 5/82.62566.70.0050.1270.0020.05080.0651.650.0060.1522.033.021
33 1/83.12579.40.0050.1270.0020.05080.0721.830.0070.1782.683.988
3 1/23 5/83.62592.10.0050.1270.0020.05080.0832.110.0080.2033.585.328
44 1/84.1251050.0050.1270.0020.05080.0952.410.010.2544.666.935
55 1/85.1251300.0050.1270.0020.05080.1092.770.0110.2796.669.911
66 1/86.1251560.0050.1270.0020.05080.1223.100.0120.3058.9113.260
ASTM B88 Copper Water Pipes and Gas Tubes

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