Oil & GasManifolds & Process Fittings
Subsea / topside connector hub & clamp body castings
Subsea: DNV-ST-F101 / ASME B31.8. Super duplex mandatory for seawater-exposed. HISC (Hydrogen Induced Stress Cracking) risk management: CP shielding, stress relief.
Specifications
Material
Duplex SS A890 Gr4A; Super Duplex Gr5A; Low temp CS LCC
Grades
LCC
Material Class
Super DuplexDuplex
Applicable Standards
ASME B31.8
Service Conditions
seawaterlow temperature
Common Processes
Investment casting (duplex / super duplex); resin sand (CS large)
NDT & Inspection
RT; PT (100%); UT; hydrostatic; CMM; NACE MR0175 compliance; hardness; PMI
Typical Specs & Notes
Subsea: DNV-ST-F101 / ASME B31.8. Super duplex mandatory for seawater-exposed. HISC (Hydrogen Induced Stress Cracking) risk management: CP shielding, stress relief.
⚠ Caveats
Super duplex mandatory for seawater-exposed.