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ERW Mild Steel Black Pipes / ERW HDG GSS GPE Blind Ends: Widely applicable for ordinary uses in water, gas, air & steam, Black Steel Pipes & Tubes, are utilized for gas distribution inside & outside the house & for hot water circular circulation in boiler systems. It is also used for line pipes in oil & petroleum industries, for water wells & for water, gas & sewage purposes. It is not used for potable water or drain waste or vent lines. When Steel Pipe is forged, a black oxide scale forms on its surface to give it the finish. Because Steel is subject to rust & corrosion, the factory coats it with protective oil or black paint. Once the pipe is coated with paint, it will not rust for a long time & requires very less maintenance. It is sold in standard 21 feet length only. Black Steel Pipes are cut & threaded to fit the job. Fittings for this type of pipe are of Black Malleable Cast Iron. They connect by screwing onto the threaded pipe, after applying a small amount of pipe joint compound on the threads. Larger diameter pipes are welded rather than threaded. Black steel pipe, is cut either with a heavy duty tube cutter or cutoff saw or by hacksaw. Size : 15 mm NB - 150 mm NB
| STEEL TUBES FOR ORDINARY USES IN WATER, GAS, STEAM & AIR LINES CONFIRMING TO IS:1239 (Part-1) 2004 (Equivalent to BS:1387) (Equivalent to EN:10255) |
| |
N.B and Series |
Strip Width |
Mean O.D. |
Wall Thickness |
Nominal Weight for Black and Galvanized Pipes |
Sockets |
| Plain End |
Screwed & Socketed |
OD |
Length |
| mm |
mm |
mm |
mm |
SWG |
Kg/m |
Mtrs/ Tonnes |
Kg/m |
Mtrs/ Tonnes |
mm |
mm |
15 L M H |
64 63 61 |
21.20 21.40 21.40 |
2.00 2.60 3.20 |
14 12 10 |
0.947 1.21 1.44 |
1056 826 694 |
0.956 1.22 1.45 |
1046 820 690 |
27.0 |
37.0 |
20 L M H |
82 81 80 |
26.65 26.90 26.90 |
2.30 2.60 3.20 |
13 12 10 |
1.38 1.56 1.87 |
725 641 535 |
1.39 1.57 1.88 |
719 637 532 |
32.5 |
39.0 |
25 L M H |
102 101 99 |
33.50 33.75 33.75 |
2.60 3.20 4.00 |
12 10 8 |
1.98 2.41 2.93
|
505 415 341
|
2.00 2.43 2.95 |
500 412 339 |
39.5 |
46.0 |
32 L M H |
128 127 125 |
42.20 42.45 42.45 |
2.60 3.20 4.00 |
12 10 8 |
2.54 3.10 3.79 |
394 323 264 |
2.57 3.13 3.82 |
389 319 262 |
49.0 |
51.0 |
40 L M H |
147 146 145 |
48.10 48.35 48.35 |
2.90 3.20 4.00 |
11 10 8 |
3.23 3.56 4.37 |
310 281 229 |
3.27 3.60 4.41 |
306 278 227 |
56.0 |
51.0 |
50 L M H |
184 182 180 |
59.90 60.25 60.25 |
2.90 3.60 4.50 |
11 9 7 |
4.08 5.03 6.19 |
245 199 162 |
4.15 5.10 6.26 |
241 196 160 |
68.0 |
60.0 |
65 L M H |
234 232 230 |
75.60 75.95 75.95 |
3.20 3.60 4.50 |
10 9 7 |
5.71 6.42 7.93 |
175 156 126 |
5.83 6.54 8.05 |
172 153 124 |
84.0 |
69.0 |
80 L M H |
274 272 270 |
88.30 88.75 88.75 |
3.20 4.00 4.80 |
10 8 6 |
6.72 8.36 9.90 |
149 120 101 |
6.89 8.53 10.40 |
145 117 96 |
98.0 |
75.0 |
100 L M H |
355 352 350 |
113.45 114.05 114.05 |
3.60 4.50 5.40 |
9 7 5 |
9.75 12.20 14.50 |
103 82 69 |
10.00 12.50 14.80 |
100 80 68 |
124.0 |
87.0 |
125 M H |
434 432 |
139.65 139.65 |
4.80 5.40 |
6 5 |
15.90 17.90 |
63 56 |
16.40 18.40 |
61 54 |
151.0 |
96.0 |
150 M H |
515 513 |
165.20 165.20 |
4.80 5.40 |
6 5 |
18.90 21.30 |
53 47 |
19.50 21.90 |
51 46 |
178.0 |
96.0 |
|
| TOLERANCES: |
| Wall Thickness: |
| Light Tubes |
+not limited -8% |
| Medium & Heavy Tubes |
+not limited -10% |
| |
| Weight: |
| Single tube (Light) |
+10% -8% |
| Single Tube (Medium & Heavy) |
ñ10% |
| For quantities per load of |
ñ5% |
| Min. 10 Tonnes (Light) |
|
| |
| For quantities per load of |
ñ7.5% |
| Min. 10 Tonnes (Medium & Heavy) |
| |
| Length: |
| Unless otherwise specified 4 to 7 Mtrs. |
|
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