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Dimensions and Physical Characteristics of Copper Tube : TYPE L

Norminal or
Standards Sizes
Outside
Diameter
inside
Diameter
Wall
Thickness
Safe Working
Pressure in
inch.
Working
Pressure
Hard Drawn
Weight
Nom Size
O.D Size
mm.
mm.
inch
mm.
p.s.l.T
(kg/cm2)
(Kg./M)
1/4
3/8
9.525
8.005
0.030
0.76
1350
95.4
0.187
3/8
1/2
12.700
10.920
0.035
0.89
1195
81.7
0.295
1/2
5/8
15.875
13.835
0.040
1.02
1105
74.5
0.425
5/8
3/4
19.050
16.91
0.042
1.07
965
65.3
0.54
3/4
7/8
22.225
19.945
0.045
0.14
875
60.1
0.675
1
1 1/8
28.575
26.035
0.050
1.27
770
52.6
0.973
1 1/4
1 3/8
34.925
32.125
0.055
1.40
680
47.9
1.317
1 1/2
1 5/8
41.275
38.235
0.060
1.52
630
43.3
1.695
2
2 1/8
53.975
50.145
0.070
1.78
555
38.5
2.608
2 1/2
2 5/8
66.675
62.615
0.080
2.03
520
35.5
3.684
3
3 1/8
79.375
74.795
0.090
2.29
490
34.1
4.955
3 1/2
3 5/8
92.075
86.995
0.10
2.54
470
33.0
6.384
4
4 1/8
104.775
99.195
0.110
2.79
450
31.5
7.987
5
5 1/8
130.175
123.815
0.125
3.18
410
28.8
11.336
6
6 1/8
155.575
148.455
0.140
3.56
385
27.3
15.191
8
8 1/8
206.375
196.215
0.20
5.08
420
29.7
28.704
10
10 1/8
257.175
244.475
0.250
6.35
425
29.9
44.708
12
12 1/8
307.975
293.755
0.280
4.11
395
27.8
60.046

 
 

 
 

NOTE

Information and date contained in these charts as taken from ASTM Specifications No. B88. Federal Specification WW-T-799, and various Copper Tube Mill chart standards.

T Based upon 150 F. with an allowable stress of 9000 p.s.l.
* Bursting pressures.ard calculated from the following Formula for thin, hollow, cylinders under tension :

Where

P = 2ts/D

P = Bursting pressure, lb. Per sq. in
T = Wall thickness, inches
D = Outside tube diameter, inches
S = Tensile strenght (36,000 ib, Per sq. in. for haed tube and 30,000 for soft tubes)

* Based upon 150 F, with as allowable stress of 5100 p.s.l.
o Rate internal pressures for copper water tube based on the strength of the tube alone and applicable to systems using suitable mechanical. Joints. (pounds per sq. inch)
 
 
 

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