ASTM A694 F42 Carbon Steel Flange Weld Neck RTJ High Pressure Pipeline 42ksi Yield Strength For API 5L X42
| Chemical Composition | |
| Element | Content (max, %) |
| C (Carbon) | ≤ 0.30 |
| Mn (Manganese) | ≤ 1.60 |
| P (Phosphorus) | ≤ 0.025 |
| S (Sulfur) | ≤ 0.025 |
| Si (Silicon) | 0.15 – 0.35 |
| Mechanical Properties (Room Temperature, Minimum) – F42 Grade | ||
| Parameter |
F42 Value
|
|
| Yield Strength (0.2% offset) | ≥ 290 MPa / 42 ksi | |
| Tensile Strength | ≥ 415 MPa / 60 ksi (range 415–585 MPa) | |
| Elongation (gage length 50mm or 2 in.) | ≥ 20% | |
| Hardness (reference) | ≤ 200 HB | |
| A694 Full Grade Series Mechanical Properties Comparison | |||
| Grade | Min. Yield Strength (MPa) | Min. Tensile Strength (MPa) | Min. Elongation (%) |
| F42 | 290 | 415 | 20 |
| F46 | 315 | 415 | 20 |
| F48 | 330 | 425 | 20 |
| F50 | 345 | 440 | 20 |
| F52 | 360 | 455 | 20 |
| F56 | 385 | 470 | 20 |
| F60 | 415 | 515 | 20 |
| F65 | 450 | 530 | 20 |
| F70 | 485 | 565 | 18 |
| Dimensional and Pressure Rating Range | ||
| Parameter | Range | Standard Reference |
| Nominal Pipe Size (NPS) | 1/2″ – 48″ (DN15 – DN1200) | ASME B16.5 / B16.47 / MSS SP-44 |
| Pressure Class | 150# / 300# / 400# / 600# / 900# / 1500# / 2500# | ASME B16.5 |
| Pressure Class (Metric) | PN6 – PN100 | EN 1092-1 |
| Flange Types | Socket Weld, Slip-On, Lap Joint, Weld Neck (WN), Blind, Threaded | ASME B16.5 / B16.47 |
| Facing Types | RF (Raised Face) / FF (Flat Face) / RTJ (Ring Type Joint) / Tongue & Groove | ASME B16.5 |
