Haihao Group Ships ASTM A350 LF2 CL1 Flange Assortment to Singapore
Haihao Group has delivered a full range of ASTM A350 LF2 CL1 flange assemblies for a low-temperature process piping project in Singapore. This comprehensive shipment covers multiple flange types, pressure classes and surface finishes, strictly fabricated in accordance with ASME B16.5 and ASME B16.48 industrial standards to meet local EPC project specifications.
A350 LF2 CL1 low temperature carbon steel flanges ASME B16.5 B16.48 with NACE white RAL9010 band, galvanized and black painted for Singapore piping project
Complete Product Specification List
| Product Type | Size | Schedule/Pressure | Standard | Material | Sealing Face | Surface & Marking |
| SO Flange | 1.5” | 600# | ASME B16.5 | A350 LF2 CL1 | RF | Black paint, 25mm white RAL9010 NACE band |
| WN Flange | 2”/4”/6” | S40, 150# | ASME B16.5 | A350 LF2 CL1 | RF | Black paint, 25mm white RAL9010 NACE band |
| WN Flange | 1” | S80, 300# | ASME B16.5 | A350 LF2 CL1 | RF | Black paint, 25mm white RAL9010 NACE band |
| Blind Flange | 3”/1” | 150#/300#/600# | ASME B16.5 | A350 LF2 CL1 | RF | Black paint, 25mm white RAL9010 NACE band |
| Galvanized Blind Flange | 0.75” | 300# | ASME B16.5 | A350 LF2 CL1 | RF | Galvanized, 25mm white RAL9010 NACE band |
| Spectacle Blind Flange | 2”/4” | 600# | ASME B16.48 | A350 LF2 CL1 | FF | Black paint, 25mm white RAL9010 NACE band |
| Galvanized Thread Flange | 0.75” | 300# | ASME B16.5 | A350 LF1 | RF | Galvanized, 25mm white RAL9010 NACE band |
The supplied ASTM A350 LF2 CL1 flange lineup includes slip-on flanges, welding neck flanges, solid blind flanges and spectacle blind flanges, covering mainstream sizes from 0.75 inch up to 6 inch. Pressure ratings range from 150# to 600#, with SCH40 and SCH80 wall thickness options tailored for different pipeline load and connection requirements, fully adapting to low-temperature carbon steel piping systems.
To unify on-site identification and comply with sour service regulations, every ASTM A350 LF2 CL1 flange is marked with a 25mm-wide white RAL 9010 NACE color band. Most flanges adopt black anti-corrosion paint finishing, while individual threaded and blind flange pieces are hot-dip galvanized for enhanced rust resistance, delivering differentiated surface protection for diverse working scenarios.
Different from conventional flange batches, this order integrates dual material grades: standardASTM A350 LF2 CL1 flange and individual ASTM A350 LF1 threaded flanges. Sealing faces adopt RF raised face and FF flat face designs respectively, matching ASME B16.5 for conventional flanges and ASME B16.48 for spectacle blinds, ensuring precise dimensional tolerance and reliable sealing performance during on-site installation.
All low-temperature carbon steel flanges undergo strict dimensional inspection and surface quality verification before shipment. The standardized NACE marking and graded surface treatment enable fast on-site sorting, inspection and installation for Singapore engineering teams. Haihao Group specializes in customized low-temperature flange solutions, capable of matching diverse standards, finishes and marking requirements for Southeast Asian industrial piping projects.