1.ASTM A53
|
NPS
DESIG-
NATOR |
OUTSIDE
DIAMETER |
WALL
THICKNESS |
WEIGHT |
SCHE-
DULE
NO. |
TEST PRESSUTES |
NO.OF
THREADS
PER INCH |
|
PLAIN ENDS |
|
Kg/m |
Kg/ft |
Grade A |
Grade B |
|
in |
in |
mm |
in |
mm |
blk |
gal |
blk |
gal |
|
psi |
Kg/cm2 |
psi |
Kg/cm2 |
|
1/2 |
0.840 |
21.3 |
0.109 |
2.77 |
1.27 |
1.35 |
0.39 |
0.41 |
40 |
700 |
50 |
700 |
50 |
14 |
|
3/4 |
1.050 |
26.7 |
0.113 |
2.87 |
1.69 |
1.79 |
0.52 |
0.55 |
40 |
700 |
50 |
700 |
50 |
14 |
|
1 |
1.315 |
33.4 |
0.133 |
3.38 |
2.50 |
2.65 |
0.76 |
0.81 |
40 |
700 |
50 |
700 |
50 |
11-1/2 |
|
1-1/4 |
1.660 |
42.2 |
0.140 |
3.56 |
3.39 |
3.59 |
1.03 |
1.10 |
40 |
1200 |
84 |
1300 |
91 |
11-1/2 |
|
1-1/2 |
1.900 |
48.3 |
0.145 |
3.68 |
4.05 |
4.29 |
1.23 |
1.31 |
40 |
1200 |
84 |
1300 |
91 |
11-1/2 |
|
2 |
2.375 |
60.3 |
0.154 |
3.91 |
5.44 |
5.77 |
1.66 |
1.76 |
40 |
2300 |
162 |
2500 |
176 |
11-1/2 |
|
2-1/2 |
2.875 |
73.0 |
0.203 |
5.16 |
8.63 |
9.15 |
2.63 |
2.79 |
40 |
2500 |
176 |
2500 |
176 |
8 |
|
3 |
3.500 |
88.9 |
0.216 |
5.49 |
11.29 |
11.97 |
3.44 |
3.65 |
40 |
2220 |
156 |
2500 |
176 |
8 |
|
3-1/2 |
4.000 |
101.6 |
0.226 |
5.74 |
13.57 |
14.38 |
4.14 |
4.38 |
40 |
2030 |
143 |
2370 |
167 |
8 |
|
4 |
4.500 |
114.3 |
0.237 |
6.02 |
16.07 |
17.03 |
4.90 |
5.19 |
40 |
1900 |
134 |
2210 |
155 |
8 |
|
5 |
5.563 |
141.3 |
0.258 |
6.55 |
21.77 |
23.08 |
6.64 |
7.03 |
40 |
1670 |
117 |
1950 |
137 |
8 |
|
6 |
6.625 |
168.3 |
0.280 |
7.11 |
28.26 |
29.96 |
8.61 |
9.13 |
40 |
1520 |
107 |
1780 |
125 |
8 |
|
8 |
8.625 |
219.1 |
0.322 |
8.18 |
42.55 |
45.10 |
12.97 |
13.75 |
40 |
1340 |
94 |
1570 |
110 |
8 |
2. British Standard (BS1387-85) Thin thickness pipe specification
|
|
Outside Diameter （mm） |
|
Weight of Black Pipe （kg/m） |
|
Nominal Size
（ DN） |
Screw Identifiers |
Maximum |
Minimum |
Thickness |
Plain end pipe |
Threaded and With Coupler |
|
15 |
1/2 |
21.4 |
21.0 |
2.0 |
0.947 |
0.956 |
|
20 |
3/4 |
26.9 |
26.4 |
2.3 |
1.38 |
1.39 |
|
25 |
1 |
33.8 |
33.2 |
2.6 |
1.98 |
2.00 |
|
32 |
11/4 |
42.5 |
41.9 |
2.6 |
2.54 |
2.57 |
|
40 |
11/2 |
48.4 |
47.8 |
2.9 |
3.23 |
3.27 |
|
50 |
2 |
60.2 |
59.6 |
2.9 |
4.08 |
4.15 |
|
65 |
21/2 |
76.0 |
75.2 |
3.2 |
5.71 |
5.83 |
|
80 |
3 |
88.7 |
87.9 |
3.2 |
6.72 |
6.89 |
|
100 |
4 |
113.9 |
113.0 |
3.6 |
9.75 |
10.0 |
Note： Size and weight are as same as ISO 65 (Thin thickness 2).
3. British Standard (BS1387-85) Normal steel pipe size
|
|
Outside Diameter （mm） |
|
Weight of Black Pipe （kg/m） |
|
Nominal Size
（ DN） |
Screw Identifiers |
Maximum |
Minimum |
Thickness |
Plain end pipe |
Threaded and With Coupler |
|
15 |
1/2 |
21.7 |
21.1 |
2.6 |
1.21 |
1.22 |
|
20 |
3/4 |
27.2 |
26.6 |
2.6 |
1.56 |
1.57 |
|
25 |
1 |
34.2 |
33.4 |
3.2 |
2.41 |
2.43 |
|
32 |
11/4 |
42.9 |
42.1 |
3.2 |
3.10 |
3.13 |
|
40 |
11/2 |
48.8 |
48.0 |
3.2 |
3.57 |
3.61 |
|
50 |
2 |
60.8 |
59.8 |
3.6 |
5.03 |
5.10 |
|
65 |
21/2 |
76.6 |
75.4 |
3.6 |
6.43 |
6.55 |
|
80 |
3 |
89.5 |
88.1 |
4.0 |
8.37 |
8.54 |
|
100 |
4 |
114.9 |
113.3 |
4.5 |
12.2 |
12.5 |
|
125 |
5 |
140.6 |
138.7 |
5.0 |
16.6 |
17.1 |
|
150 |
6 |
166.1 |
164.1 |
5.0 |
19.7 |
20.3 |
4. Deutsche Industrie Normen (DIN2444) Hot Dipped Galvanized Pipe and Welded Black Pipe
|
Nominal Inside Diameter |
Outside Diameter (mm) |
Wall Thickness |
Weight（kg/m） |
|
DN |
inch |
Maximum |
Minimum |
（ mm） |
Plain End Pipe |
Pipe With Coupler |
|
15 |
1/2 |
21.7 |
21.1 |
2.65 |
1.22 |
1.23 |
|
20 |
3/4 |
27.2 |
26.6 |
2.65 |
1.58 |
1.59 |
|
25 |
1 |
34.2 |
33.4 |
3.25 |
2.44 |
2.46 |
|
32 |
1-1/4 |
42.9 |
42.1 |
3.25 |
3.14 |
3.17 |
|
40 |
1-1/2 |
48.8 |
48.0 |
3.25 |
3.61 |
3.65 |
|
50 |
2 |
60.7 |
59.9 |
3.65 |
5.10 |
5.17 |
|
65 |
2-1/2 |
76.4 |
75.6 |
3.65 |
6.51 |
6.63 |
|
80 |
3 |
89.3 |
88.3 |
4.05 |
8.47 |
8.64 |
|
100 |
4 |
114.6 |
113.6 |
4.50 |
12.10 |
12.40 |
|
125 |
5 |
140.3 |
139.1 |
4.85 |
16.20 |
16.70 |
|
150 |
6 |
165.7 |
164.5 |
4.85 |
19.20 |
19.80 |
5. JIS G3444 AND JIS G3444
|
ERW Steel Round Pipe by JIS G3444 |
Erw Steel square and recgtangular tube by JIS G3444 |
|
O.D.(mm) |
W.T.(mm) |
Theoretic weight(Kg/m) |
size |
W.T.(mm) |
Theoretic weight(Kg/m) |
|
33.7 |
2.2 |
1.71 |
30×30 |
3.0 |
2.36 |
|
42.4 |
2.5 |
2.46 |
40×40 |
3.0 |
3.30 |
|
48.3 |
2.5 |
2.82 |
50×50 |
3.0 |
4.25 |
|
60.3 |
3.5 |
4.90 |
60×60 |
3.5 |
5.96 |
|
76.1 |
3.5 |
6.27 |
60×40 |
3.5 |
4.86 |
|
88.9 |
3.75 |
7.81 |
80×40 |
3.75 |
6.34 |
|
114.3 |
4.2 |
10.88 |
100×100 |
4.0 |
11.37 |
6. 2PE3PE coating
|
N.B
(mm) |
Epoxy powder coating
（um） |
Adhesive（um） |
Min wall thickness of anticorrosive coating（mm） |
|
two layer |
three layer |
usual grade |
strengthen grade |
|
≤100 |
≥80 |
200-400 |
170-250 |
1.8 |
2.5 |
|
250＜DN≤250 |
2.0 |
2.7 |
|
250＜DN≤500 |
2.2 |
2.9 |
|
500＜DN≤800 |
2.5 |
3.2 |
|
DN≥800 |
3.0 |
3.7 |
7. 2PE3PE coating capability
|
NO. |
Item |
Property data |
Test way |
|
two laye |
three layer |
|
1 |
Detach strength(N/cm) |
20℃±5℃ |
≥70 |
≥100 |
SY/T0413-2002 |
|
50℃±5℃ |
≥35 |
≥70 |
|
2 |
Cleaning of the cathode(65℃,48h)(mm) |
|
≤8 |
SY/T0413-2002 |
|
3 |
Impact test(J/mm) |
≥8 |
SY/T0413-2002 |
|
4 |
Bending strength(2.5°-30℃±5℃) |
No crack of polythene |
SY/T0413-2002 |
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