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Table of Contents
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ISMT Pipe Specification
ISMT Seamless Pipe Size
Indian Seamless Metal ERW Tubes Size
ISMT Line Pipe Sizes
ISMT Cold-drawn Precision Seamless Tubes Testings
ISMT OCTG Tubes Dimensional Standard
ISMT High Collapse Casing Pipe Manufacturing Types
ISMT Casing Pipe Length
ISMT Welded Pipe Welding
ISMT Hydrualic Line Pipe Certificates
ISMT OCTG Tubes Testings
Indian Seamless Tubes Sizes
| Tube OD (mm) | OD Tol. (mm) | Tube ID (mm) | Tube wall Thickness(mm) | Tube Weight (Kg/ mtr) |
|---|---|---|---|---|
| 6 | + 0.08 | 4.5 | 0.75 | 0.10 |
| 3 | 1.5 | 0.17 | ||
| 1.5 | 2.25 | 0.21 | ||
| 8 | 5 | 1.5 | 0.24 | |
| 3 | 2.5 | 0.34 | ||
| 10 | 7 | 1.5 | 0.31 | |
| 5 | 2.5 | 0.46 | ||
| 12 | 10 | 1 | 0.27 | |
| 8 | 2 | 0.49 | ||
| 6 | 3 | 0.67 | ||
| 14 | 11 | 1.5 | 0.46 | |
| 9 | 2.5 | 0.71 | ||
| 15 | 13 | 1 | 0.35 | |
| 11 | 2 | 0.64 | ||
| 16 | 13 | 1.5 | 0.54 | |
| 11 | 2.5 | 0.83 | ||
| 18 | 16 | 1 | 0.42 | |
| 14 | 2 | 0.79 | ||
| 20 | 17 | 1.5 | 0.68 | |
| 16 | 2 | 0.89 |
ISMT Hydrualic Line Pipe Delivery Condition
| Designation | Symbol |
|---|---|
| Cold drawn and stress Delivered | +SR(BKS) |
| Cold drawn / hard | +c(BK) |
| Cold drawn / soft | +LC(BKW) |
| Normal | +N(NBK) |
| Annealed | +A(GBK) |
ISMT Casing Pipe Properties
| OD (in.) | WT (in.) | Y.S. Range (ksi / MPa) | Weight (kg/m) | U.T.S min (ksi / MPa) | Pressure (PSI / MPa) | PPF |
|---|---|---|---|---|---|---|
| 4-1/2" | 0.224" | 55 / 379 - 80 / 552 | 10.5 | 95 / 655 | 5414 / 37.33 | 1.14-1.48 |
| 6" | 0.253" | 95 / 655 | 13 | 110 / 758 | 5589 / 38.54 | 3.24-4.50 |
| 7" | 0.415" | 125 / 862 | 20 | 150 / 1034 | 11116 / 76.66 | 9.2-12.70 |
| 8" | 0.417" | 140 / 965 | 28 | 175 / 1207 | 8331 / 57.45 | 10.5-13 |
| 10" | 0.540" | 150 / 1034 | 35 | 200 / 1378 | 10575 / 72.93 | 14-16.5 |
| 12" | 0.408 | 140 / 965 | 43 | 175 / 1207 | 7295 / 50.31 | 20-23.5 |
Tolerance of ISMT Welded Pipe
| Outside Dia | Tolerance | Tolerance | Inside Dia | |
|---|---|---|---|---|
| M M |
80 < OD < 140 | +0,-0.45 | +0.38,-0 | ID < 0.40 |
| 40 < OD < 80 | +0,-0.38 | +0.25,-0 | 75 < ID < 140 | |
| 25.40 < OD < 40 | +0,-0.25 | +0.13,-0 | ID < 75 | |
| I N C H E S |
3.15 < OD < 5.512 | +0,-0.018 | +0.015,-0 | ID < 5.512 |
| 1.575 < OD < 3.150 | +0,-0.015 | +0.010,-0 | 2.953 < ID < 5.512 | |
| 1 < OD < 1.575 | +0,-0.010 | +0.0051,-0 | ID < 2.953 |
ISMT Seamless Tubes Applications
ISMT ERW Tubes Mill Specifications
| Pipe | Mill Type | OD | WT |
|---|---|---|---|
| Welded Pipe | Assel Mill + PQF Mill | 3" to 20" | SCH 40, SCH 80, SCH 160 |
| 2" to 16" | SCH 40, SCH 80 | ||
| 1-1/2" to 8" | SCH 40, SCH 160 | ||
| 1" to 12" | SCH 40, SCH 160 |
Mechanical Propertie of ISMT Cold-drawn Precision Seamless Tubes
| Steel No. | Rm MPa | R MPa | Temperature | A % |
|---|---|---|---|---|
| 1581 | 490-630 | 21 | 355°C | - |
| 1580 | 640 | 580 | 640°C | 4 |
| 1421 | 21 | 275 | 420°C | 500-650 |
| 1408 | 580 | 520 | 580°C | 5 |
| 1308 | 480 | 420 | 480°C | 10 |
| 1257 | 21 | 275 | 420°C | 490-630 |
| 1256 | 21 | 275 | 420°C | - |
| 1254 | 30 | 240 | 415°C | - |
| 1212 | 380 | 280 | 430°C | 12 |
Chemical Composition of ISMT Heat-Exchangers Pipes
| Steel No. | Steel Name | Silicon | Carbon | Phosphorus | Manganese | Aluminium | Sulfur |
|---|---|---|---|---|---|---|---|
| 1581 | St 52.4 | 0.20% max | ≤1.6% max | 025% max | 0.35% max | 500-650% min | 010% max |
| 1580 | St 52 | 0.55% max | 0.22% max | 025% max | 1.60% max | 020% min | 025% max |
| 1421 | St 52 | 0.35% max | 0.22% max | 010% max | 025% max | 350-480% min | 020% max |
| 1408 | St 45 | 0.21% max | 0.40% max | 025% max | 0.35% max | 020% min | 010% max |
| 1308 | St 35 | 0.35% max | 0.17% max | 025% max | 1.20% max | 020% min | 010% max |
| 1257 | St 44.4 | 0.35% max | 0.20% max | 010% max | 025% max | 500-650% min | 020% max |
| 1256 | St 44 | 0.35% max | 0.21% max | 010% max | 025% max | - | 020% max |
| 1255 | St 37.4 | 0.35% max | 0.17% max | 010% max | 025% max | 350-480% min | 020% max |
| 1254 | St 37 | 0.35% max | 0.17% max | 010% max | 025% max | - | 020% max |
| 1212 | St 30 Al | 05% max | 0.10 % max | 025% max | 0.70% max | 025% min | 010% max |
ISMT Pipe Standards
| USA | Germany | Europe | Japan | UK | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ASME/ASTM | DIN | EN | JIS | BS | ||||||||||
| - | - | SA/A106 | - | SA/A209 | SA/A213, SA/A335 | SA/A210 | DIN 17173 | DIN 17175 | DIN 17176 | EN 10216-2 | EN 10216-4 | 3461 | 3456 | - |
| SA/A 179 | - | Gr.A | SA/A 192 | - | - | - | - | St.35.8 | - | P 235GH | - | - | - | - |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3059/1-360 |
| - | - | Gr.B | - | - | - | SA/A210Gr.A1 | - | St.45.8 | - | P 265GH | - | STPT 38 | 3458 | 3059/2-440 |
| - | - | - | - | - | T5/P5 | - | - | - | X12CrMo195 | X11CrMo5 | - | STBA 25 | STPA 25 | 3604/625 |
| - | - | Gr.C | - | - | - | SA/A210Gr.C | - | 17Mo4 | - | - | - | - | - | 3059/1-360 |
| - | - | - | - | - | - | - | - | 15Mo3 | - | 16Mo3 | - | - | - | 3059/243 |
| - | - | - | - | T1/T1A | P1 | - | - | 16Mo3 | - | 16Mo3 | - | STBA 12 | STPA 12 | 3606/245 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3604/629-590 |
| - | - | - | - | - | - | - | - | - | X12CrMo5 | X11CrMo5 | - | - | - | 3606/625 |
| - | - | - | - | - | T9 / P9 | - | - | - | X12CrMo9-1 | X11CrMo9-10 | - | STBA 26 | STPA 26 | 3659-629-590 |
| - | - | - | - | - | T12 / P12 | - | - | 13CrMo4-4 | - | 12CrMo4-5 | - | STBA 22 | STPA 22 | 3659/2-620 |
| - | - | - | - | - | T11 / P11 | - | - | - | X12CrMo9-1 | 10CrMo5-5 | - | STBA 26 | STPA 23 | 3604/621 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3606 - 621 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3606 - 620 |
| - | - | - | - | - | T22 / P22 | - | - | 10CrMo9-10 | - | 10CrMo9-10 | - | STBA 24 | STPA 24 | 3059/2-622-490 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3604 - 622 |
| - | - | - | - | - | T23 / P23 | - | - | - | - | - | - | - | - | - |
| - | - | - | - | - | T91 / P91 | - | - | X10CrMoVNb9-1 | - | X10CrWMoVNb9-1 | - | STBA 28 | STPA 28 | 3059/2-91 |
| - | - | - | - | - | T36 / P36 | - | - | - | - | - | - | - | - | - |
| - | - | - | - | - | T92 / P92 | - | - | - | - | X10CrWMoVNb9-2 | - | STBA 29 | STPA 29 | - |
| - | SA/A 333 Gr1 | - | - | - | - | - | TTSt35N/V | - | - | - | P215NL/P255 QL | - | - | - |
| - | SA/A 333 Gr6 | - | - | - | - | - | - | - | - | - | - | - | - | 3603:1991-43-LT |