| Item | Parameters | Elbow between 24” short spool and 24”/20”reducer |
| 1 | Type of Service | Sour (Crude Oil) |
| 2 | Adjacent Component / Pipe Steel Grade | ISO3183 L450 PSL2 (NACE) / API 5L X65 |
| 3 | Design Code & Standard | ISO 15590-2, ASME B16.9 |
| 4 | Elbow Material Grade | ASTM A694 F65 (NACE)/ASTM A860 WPHY 65 (NACE) |
| 5 | Elbow Type | Long radius elbow (1.5 x OD) |
| 6 | Nos. of Elbow Required | Refer to Elbow MTO |
| 7 | Surface Protection | System 7A NORSOK M-501 (Permanent Paint System) |
| 8 | Matching Pipe Steel Grade | ISO 3183 Grade L450 PSL 2 /API 5L X65 |
| 9 | Pipe Outer Diameter | 610mm (NPS24) |
| 10 | Pipe Internal Diameter | 575.04mm |
| 11 | Pipeline Nominal Wall thickness | 17.48mm |
| 12 | Angle of Elbow | 15 deg |
| 13 | Pressure-Temperature Rating | (ASME B16.5/MSS SP-44) 300# |
| 14 | Design / Safety Factor for Spool / Pipeline | 0.6 |
| 15 | Minimum Yield Strength | 450 MPa |
| 16 | Minimum Tensile Strength | 520 MPa |
| 17 | Maximum Design Temperature | 60°C |
| 18 | Minimum Design Temperature | 0°C |
| 19 | Maximum Operating Temperature | 50°C |
| 20 | Maximum Allowable Operating Pressure / Design Pressure | 18 barg |
| 21 | Hydrotest Pressure | 27 barg |
| 22 | Pipeline Corrosion Allowance | 6mm |
| 23 | Material Certificate | EN 10204 3.1 |
| 24 | Hardness | 220 HV10(max) |
| 25 | Chemical composition | Subclause 9.3, ISO 15590-2 with CE < 0.40%, Class CS |
| 26 | Tensile – base metal | Class CS, Subclause 9.4.2.3, ISO 15590-2 |
| 27 | Transverse weld tensile | Class CS, Subclause 9.4.2.3, ISO 15590-2 |
| 28 | Impact – base material | Subclause 9.4.3.3, ISO 15590-2 |
| 29 | Impact – weld seam | Subclause 9.4.3.3, ISO 15590-2 |
| 30 | Through-thickness test | No hardness reading shall exceed 220 HV10 |
| 31 | Surface Hardness test | Subclause 9.4.5 ISO 15590-2 |
| 32 | Metallography | Subclause 9.4.6.2 ISO 15590-2 |
| 33 | HIC | Required. Subclause 9.4.7 ISO 15590-2 |
| 34 | Guided band (weld seam) | Subclause 9.4.10.3 ISO 15590-2 |
| 35 | NDT | Subclause 9.5.3 – Subclause 9.5.8 ISO 15590-2 |
| 36 | Dimension inspection | Subclause 9.6 ISO 15590-2 |
| Item | Parameters | Reducer between 24”/20” Piping |
| 1 | Type of Service | Sour (Crude Oil) |
| 2 | Adjacent Component / Pipe Steel Grade | ISO3183 L450 PSL2 (NACE) / API 5L X65 |
| 3 | Design Code & Standard | ISO 15590-2, ASME B16.9 |
| 4 | Elbow Material Grade | ASTM A694 F65 (NACE)/ASTM A860 WPHY 65 (NACE) |
| 5 | Elbow Type | Long radius elbow (1.5 x OD) |
| 6 | Nos. of Elbow Required | Refer to Reducer MTO |
| 7 | Surface Protection | System 7A NORSOK M-501 (Permanent Paint System) |
| 8 | Matching Pipe Steel Grade | ISO 3183 Grade L450 PSL 2 /API 5L X65 |
| 9 | Pipe Outer Diameter | 610mm (NPS24) / 508mm (NPS20) |
| 10 | Pipe Internal Diameter | 575.04mm / 477.82mm |
| 11 | Pipeline Nominal Wall thickness | 17.48mm / 15.09mm |
| 12 | Pressure-Temperature Rating | 300# |
| 13 | Design / Safety Factor for Spool / Pipeline | 0.6 |
| 14 | Minimum Yield Strength | 450 MPa |
| 15 | Minimum Tensile Strength | 520 MPa |
| 16 | Maximum Design Temperature | 60°C |
| 17 | Minimum Design Temperature | 0°C |
| 18 | Maximum Operating Temperature | 50°C |
| 19 | Maximum Allowable Operating Pressure / Design Pressure | 18 barg |
| 20 | Hydrotest Pressure | 27 barg |
| 21 | Pipeline Corrosion Allowance | 6mm |
| 22 | Material Certificate | EN 10204 3.1 |
| 23 | Hardness | 220 HV10(max) |
| 24 | Chemical composition | Subclause 9.3, ISO 15590-2 with CE < 0.40%, Class CS |
| 25 | Tensile – base metal | Class CS, Subclause 9.4.2.3, ISO 15590-2 |
| 26 | Transverse weld tensile | Class CS, Subclause 9.4.2.3, ISO 15590-2 |
| 27 | Impact – base material | Subclause 9.4.3.3, ISO 15590-2 |
| 28 | Impact – weld seam | Subclause 9.4.3.3, ISO 15590-2 |
| 29 | Through-thickness test | No hardness reading shall exceed 220 HV10 |
| 30 | Surface Hardness test | Subclause 9.4.5 ISO 15590-2 |
| 31 | Metallography | Subclause 9.4.6.2 ISO 15590-2 |
| 32 | HIC | Required. Subclause 9.4.7 ISO 15590-2 |
| 33 | Guided band (weld seam) | Subclause 9.4.10.3 ISO 15590-2 |
| 34 | NDT | Subclause 9.5.3 – Subclause 9.5.8 ISO 15590-2 |
| 35 | Dimension inspection | Subclause 9.6 ISO 15590-2 |
