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NPS 12
| Dimensions | ||
|---|---|---|
| WMass | 55.47 | |
| tThickness | 7.1 | |
| ODOutside diameter | 323.9 | |
| IDInside diameter | 309.7 | |
| AArea | 7,066 | |
| Major axis | ||
| IxSecond moment of area | 88.69 | |
| SxElastic modulus | 547.7 | |
| ZxPlastic modulus | 712.7 | |
| rxRadius of gyration | 112 | |
| ytopCentroid to top | 161.9 | |
| ybotCentroid to bottom | 161.9 | |
| Minor axis | ||
| IySecond moment of area | 88.69 | |
| SyElastic modulus | 547.7 | |
| ZyPlastic modulus | 712.7 | |
| ryRadius of gyration | 112 | |
| Torsion and warping | ||
| JTorsion constant | 177,400 | |
API 5L Table 3A/3B
| Steel type | Carbon-manganese, Nb/V/Ti allowed | |
|---|---|---|
| FyYield strength, minimum | 359 | |
| FuTensile strength, minimum | 455 | |
| EModulus of elasticity | 200,000 | |
| GShear modulus | 77,200 | |
| νPoisson's ratio | 0.3 | |
| ρDensity | 7,850 | |
| Flexure class, AISC 360 Table B4.1 | Non-compact, D/t 45.6 (λp 39, λr 172.7) | |
| API RP 2A-WSD group and class | Group II Class C; Class B with SR5/SR6 | |
| Capacity (nominal, no resistance or safety factors) | ||
| PyAxial yield, A·Fy | 2,537 | |
| MyYield moment, Sx·Fy | 196.6 | |
| MpPlastic moment, Zx·Fy | 255.9 | |
| Test Pressure | Std. | Alt. | |
|---|---|---|---|
| Grade A | 54 | 68 | |
| Grade B | 63 | 79 | |
| Grade X42 | 108 | 108 | |
| Grade X46 | 118 | 118 | |
| Grade X52 (grade picked) | 134 | 134 | |
| Grade X56 | 144 | 144 | |
| Grade X60 | 154 | 154 | |
| Grade X65 | 167 | 167 | |
| Grade X70 | 180 | 180 | |
| Grade X80 | 206 | 206 |