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Pipe Dimension

Technical Reference / Various Pipes
Steel pipes: JIS G3452/G3454
Nominal size Outside
diameter
(mm)		 Carbon steel
pipes for ordinary
piping <SGP>
(JIS G3452)		 Carbon steel pipes for pressure service
<STPG>(JIS G3454)
Nominal thickness
A B Thickness (mm) Sch10 Sch20 Sch30 Sch40 Sch60 Sch80
6 1/8 10.5 2.0 - - - 1.7 2.2 2.4
8 1/4 13.8 2.3 - - - 2.2 2.4 3.0
10 3/8 17.3 2.3 - - - 2.3 2.8 3.2
15 1/2 21.7 2.8 - - - 2.8 3.2 3.7
20 3/4 27.2 2.8 - - - 2.9 3.4 3.9
25 1 34.0 3.2 - - - 3.4 3.9 4.5
32 1.1/4 42.7 3.5 - - - 3.6 4.5 4.9
40 1.1/2 48.6 3.5 - - - 3.7 4.5 5.1
50 2 60.5 3.8 - 3.2 - 3.9 4.9 5.5
65 2.1/2 76.3 4.2 - 4.5 - 5.2 6.0 7.0
80 3 89.1 4.2 - 4.5 - 5.5 6.6 7.6
90 3.1/2 101.6 4.2 - 4.5 - 5.7 7.0 8.1
100 4 114.3 4.5 - 4.9 - 6.0 7.1 8.6
125 5 139.8 4.5 - 5.1 - 6.6 8.1 9.5
150 6 165.2 5.0 - 5.5 - 7.1 9.3 11.0
200 8 216.3 5.8 - 6.4 7.0 8.2 10.3 12.7
250 10 267.4 6.6 - 6.4 7.8 9.3 12.7 15.1
300 12 318.5 6.9 - 6.4 8.4 10.3 14.3 17.4
350 14 355.6 7.9 6.4 7.9 9.5 11.1 15.1 19.0
400 16 406.4 7.9 6.4 7.9 9.5 12.7 16.7 21.4
 
Thich steel conduit: JIS C8305   Thin steel conduit: JIS C8305
Thicker conduit   Thinner Conduit
Parallel PipeThread
(JIS B0202/ISO228-1)		 Nominal size Outside
diameter
(mm)		 Thickness
(mm)
PF G (BSPP) Pipe Thread
1/4 (8) G1/4 G8 CTG8 - -
3/8 (10) G3/8 G10 CTG10 - -
1/2 (16) G1/2 G16 CTG16 21.0 2.3
3/4 (22) G3/4 G22 CTG22 26.5 2.3
1 (28) G1 G28 CTG28 33.3 2.5
1.1/4 (36) G1.1/4 G36 CTG36 41.9 2.5
1.1/2 (42) G1.1/2 G42 CTG42 47.8 2.5
2 (54) G2 G54 CTG54 59.6 2.8
2.1/2 (70) G2.1/2 G70 CTG70 75.2 2.8
3 (82) G3 G82 CTG82 87.9 2.8
3.1/2 (92) G3.1/2 G92 CTG92 100.7 3.5
4 (104) G4 G104 CTG104 113.4 3.5
 
Nominal size Outside
diameter
(mm)		 Thickness
(mm)
Pipe Thread
C19 CTC19 19.1 1.6
C25 CTC25 25.4 1.6
C31 CTC31 31.8 1.6
C39 CTC39 38.1 1.6
C51 CTC51 50.8 1.6
C63 CTC63 63.5 2.0
C75 CTC75 76.2 2.0
Remarks: former JIS B0204
 
Copper tube for construction piping: JIS H3300   Copper tube for refrigerent: JIS H3300
Nominal size Outside
diameter
(mm)		 Thickness (mm)
M type L type
A B Water
supply		 Gas and
water
supply
8 1/4 9.52 - 0.76
10 3/8 12.70 0.64 0.89
15 1/2 15.88 0.71 1.02
- 5/8 19.05 - 1.07
20 3/4 22.22 0.81 1.14
25 1 28.58 0.89 1.27
32 1.1/4 34.92 1.07 1.40
40 1.1/2 41.28 1.24 1.52
50 2 53.98 1.47 1.78
 
Nominal
size		 Outside
diameter
(mm)		 Thickness
(mm)
1/4 6.35 0.80
3/8 9.52 0.80
1/2 12.70 0.80
5/8 15.88 1.00
3/4 19.05 1.00
7/8 22.22 1.00
1 25.40 1.00
1.1/8 28.58 1.00
1.1/4 31.75 1.10
1.3/8 34.92 1.10
1.1/2 38.10 1.15
1.5/8 41.28 1.20
1.3/4 44.45 1.25
2 50.80 1.40
 
Stainless Steel pipes: JIS G3459
Nominal size Outside
diameter
(mm)		 Nominal thickness
Sch5S Sch10S Sch20S Sch40 Sch80
A B Thickness (mm)
6 1/8 10.5 1.0 1.2 1.5 1.7 2.4
8 1/4 13.8 1.2 1.65 2.0 2.2 3.0
10 3/8 17.3 1.2 1.65 2.0 2.3 3.2
15 1/2 21.7 1.65 2.1 2.5 2.8 3.7
20 3/4 27.2 1.65 2.1 2.5 2.9 3.9
25 1 34.0 1.65 2.8 3.0 3.4 4.5
32 1.1/4 42.7 1.65 2.8 3.0 3.6 4.9
40 1.1/2 48.6 1.65 2.8 3.0 3.7 5.1
50 2 60.5 1.65 2.8 3.5 3.9 5.5
65 2.1/2 76.3 2.1 3.0 3.5 5.2 7.0
80 3 89.1 2.1 3.0 4.0 5.5 7.6
90 3.1/2 101.6 2.1 3.0 4.0 5.7 8.1
100 4 114.3 2.1 3.0 4.0 6.0 8.6
125 5 139.8 2.8 3.4 5.0 6.6 9.5
150 6 165.2 2.8 3.4 5.0 7.1 11.0
200 8 216.3 2.8 4.0 6.5 8.2 12.7
250 10 267.4 3.4 4.0 6.5 9.3 15.1
300 12 318.5 4.0 4.5 6.5 10.3 17.4
350 14 355.6 - - - 11.1 19.0
400 16 406.4 - - - 12.7 21.4
 
Light gauge stainless tube    
for ordinary piping: JIS G3448   Stainless steel sanitary pipes: JIS G3447
Nominal
size		 Outside
diameter
(mm)		 Thickness
(mm)
Su
8 9.52 0.7
10 12.7 0.8
13 15.88 0.8
20 22.22 1.0
25 28.58 1.0
30 34.0 1.2
40 42.7 1.2
50 48.6 1.2
60 60.5 1.5
75 76.3 1.5
80 89.1 2.0
100 114.3 2.0
125 139.8 2.0
150 165.2 3.0
 
Outside
diameter
(mm)		 Thickness
(mm)
25.4 1.2
31.8 1.2
38.1 1.2
50.8 1.5
63.5 2.0
76.3 2.0
89.1 2.0
101.6 2.0
114.3 3.0
139.8 3.0
165.2 3.0
 
Steel Pipe: ASME B36.10M-2004
Nominal
Size		 Outside
Diameter		 　　Nominal Thickness
Schdule5 Schdule10 Schdule20 Schdule30 STD Schdule40 XS Schdule60 Schdule80
　　Wall Thickness
A B mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch
6 1/8 10.3 0.405 - - 1.24 0.049 - - 1.45 0.057 1.73 0.068 1.73 0.068 2.41 0.095 - - 2.41 0.095
8 1/4 13.7 0.540 - - 1.65 0.065 - - 1.85 0.073 2.24 0.088 2.24 0.088 3.02 0.119 - - 3.02 0.119
10 3/8 17.1 0.675 - - 1.65 0.065 - - 1.85 0.073 2.31 0.091 2.31 0.091 3.20 0.126 - - 3.20 0.126
15 1/2 21.3 0.840 1.65 0.065 2.11 0.083 - - 2.41 0.095 2.77 0.109 2.77 0.109 3.73 0.147 - - 3.73 0.147
20 3/4 26.7 1.050 1.65 0.065 2.11 0.083 - - 2.41 0.095 2.87 0.113 2.87 0.113 3.91 0.154 - - 3.91 0.154
25 1 33.4 1.315 1.65 0.065 2.77 0.109 - - 2.90 0.114 3.38 0.133 3.38 0.133 4.55 0.179 - - 4.55 0.179
32 1 1/4 42.2 1.660 1.65 0.065 2.77 0.109 - - 2.97 0.117 3.56 0.140 3.56 0.140 4.85 0.191 - - 4.85 0.191
40 1 1/2 48.3 1.900 1.65 0.065 2.77 0.109 - - 3.18 0.125 3.68 0.145 3.68 0.145 5.08 0.200 - - 5.08 0.200
50 2 60.3 2.375 1.65 0.065 2.77 0.109 - - 3.18 0.125 3.91 0.154 3.91 0.154 5.54 0.218 - - 5.54 0.218
65 2 1/2 73.0 2.875 2.11 0.083 3.05 0.120 - - 4.78 0.188 5.16 0.203 5.16 0.203 7.01 0.276 - - 7.01 0.276
80 3 88.9 3.500 2.11 0.083 3.05 0.120 - - 4.78 0.188 5.49 0.216 5.49 0.216 7.62 0.300 - - 7.62 0.300
90 3 1/2 101.6 4.000 2.11 0.083 3.05 0.120 - - 4.78 0.188 5.74 0.226 5.74 0.226 8.09 0.318 - - 8.08 0.318
100 4 114.3 4.500 2.11 0.083 3.05 0.120 - - 4.78 0.188 6.02 0.237 6.02 0.237 8.56 0.337 - - 8.56 0.337
125 5 141.3 5.563 2.77 0.109 3.40 0.134 - - - - 6.55 0.258 6.55 0.258 9.53 0.375 - - 9.53 0.375
150 6 168.3 6.625 2.77 0.109 3.40 0.134 - - - - 7.11 0.280 7.11 0.280 10.97 0.432 - - 10.97 0.432
200 8 219.1 8.625 2.77 0.109 3.76 0.148 6.35 0.250 7.04 0.277 8.18 0.322 8.18 0.322 12.70 0.500 10.31 0.406 12.70 0.500
250 10 273.1 10.750 3.40 0.134 4.19 0.165 6.35 0.250 7.80 0.307 9.27 0.365 9.27 0.365 12.70 0.500 12.70 0.500 15.09 0.594
300 12 323.9 12.750 3.96 0.156 4.57 0.180 6.35 0.250 8.38 0.330 9.53 0.375 10.31 0.406 12.70 0.500 14.27 0.562 17.48 0.688
350 14 355.6 14.000 3.96 0.156 6.35 0.250 7.92 0.312 9.53 0.375 9.53 0.375 11.13 0.438 12.70 0.500 15.09 0.594 19.05 0.750
400 16 406.4 16.000 4.19 0.165 6.35 0.250 7.92 0.312 9.53 0.375 9.53 0.375 12.70 0.500 12.70 0.500 16.66 0.656 21.44 0.844
450 18 457.2 18.000 4.19 0.165 6.35 0.250 7.92 0.312 11.13 0.438 9.53 0.375 14.27 0.562 12.70 0.500 19.05 0.750 23.83 0.938
500 20 508.0 20.000 4.78 0.188 6.35 0.250 9.53 0.375 12.70 0.500 9.53 0.375 15.09 0.594 12.70 0.500 20.62 0.812 26.19 1.031
550 22 559.0 22.000 4.78 0.188 6.35 0.250 9.53 0.375 12.70 0.500 9.53 0.375 - - 12.70 0.500 22.23 0.875 28.58 1.125
600 24 610.0 24.000 5.54 0.218 6.35 0.250 9.53 0.375 14.27 0.502 9.53 0.375 17.48 0.688 12.70 0.500 24.61 0.909 30.96 1.219
 
:Differs from JIS pipes by 3mm or more
 
Stainless Steel Pipe: ASME B36.19M-1985
Nominal Size Outside Diameter Nominal Thickness
Schdule5S Schdule10S Schdule40S Schdule80S
Wall Thickness
A B mm inch mm inch mm inch mm inch mm inch
6 1/8 10.3 0.405 - - 1.24 0.049 1.73 0.068 2.41 0.095
8 1/4 13.7 0.540 - - 1.65 0.065 2.24 0.088 3.02 0.119
10 3/8 17.1 0.675 - - 1.65 0.065 2.31 0.091 3.20 0.126
15 1/2 21.3 0.840 1.65 0.065 2.11 0.083 2.77 0.109 3.73 0.147
20 3/4 26.7 1.050 1.65 0.065 2.11 0.083 2.87 0.113 3.91 0.154
25 1 33.4 1.315 1.65 0.065 2.77 0.109 3.38 0.133 4.55 0.179
32 1 1/4 42.2 1.660 1.65 0.065 2.77 0.109 3.56 0.140 4.85 0.191
40 1 1/2 48.3 1.900 1.65 0.065 2.77 0.109 3.68 0.145 5.08 0.200
50 2 60.3 2.375 1.65 0.065 2.77 0.109 3.91 0.154 5.54 0.218
65 2 1/2 73.0 2.875 2.11 0.083 3.05 0.120 5.16 0.203 7.01 0.276
80 3 88.9 3.500 2.11 0.083 3.05 0.120 5.49 0.216 7.62 0.300
90 3 1/2 101.6 4.000 2.11 0.083 3.05 0.120 5.74 0.226 8.08 0.318
100 4 114.3 4.500 2.11 0.083 3.05 0.120 6.02 0.237 8.56 0.337
125 5 141.3 5.563 2.77 0.109 3.40 0.134 6.55 0.258 9.53 0.375
150 6 168.3 6.625 2.77 0.109 3.40 0.134 7.11 0.280 10.97 0.432
200 8 219.1 8.625 2.77 0.109 3.76 0.148 8.18 0.322 12.70 0.500
250 10 273.1 10.750 3.40 0.134 4.19 0.165 9.27 0.365 12.70 0.500
300 12 323.9 12.750 3.96 0.156 4.57 0.180 9.53 0.375 12.70 0.500
350 14 355.6 14.000 3.96 0.156 4.78 0.188 - - - -
400 16 406.4 16.000 4.19 0.165 4.78 0.188 - - - -
450 18 457.2 18.000 4.19 0.165 4.78 0.188 - - - -
500 20 508.0 20.000 4.78 0.188 5.54 0.218 - - - -
550 22 559.0 22.000 4.78 0.188 5.54 0.218 - - - -
600 24 610.0 24.000 5.54 0.218 6.35 0.250 - - - -
 
:Size differs from steel pipe

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