ASTM B564 UNS N08825 Saddle Outlet MSS SP-97 for UAE Sour Service

Haihao Group has completed production, inspection and shipment of a nickel alloy saddle outlet for a UAE sour hydrocarbon pipeline project. This branch connection is engineered for harsh sour operating conditions, where ordinary carbon steel and standard stainless fittings cannot withstand combined sulfide stress cracking and corrosive media.

The ASTM B564 UNS N08825 saddle outlet follows MSS SP-97, sized 24 inch run × 3 inch branch. The run wall thickness is 35.71 mm and the branch side is S-40S. Unlike common forged branch connections, this saddle outlet is designed to fit directly onto the outer surface of the main run pipe, distributing load evenly and avoiding the stress concentration risks of conventional cut-in branch tie-ins.

ASTM B564 UNS N08825 saddle outlet MSS SP-97, sour service nickel alloy branch fitting for UAE pipeline

Material selection is the core of this sour service package. UNS N08825 (Alloy 825) provides reliable resistance to sour gas, chloride corrosion and stress cracking, which is why the UAE operator specified this nickel alloy grade for the branch take-off. Before release, the ASTM B564 UNS N08825 saddle outlet passed full material verification, PMI check and documentation review to confirm compliance with sour service requirements.

For field teams in the UAE, using this ASTM B564 UNS N08825 saddle outlet brings practical assembly benefits. It reduces site hot work and complex pipe cutting preparation, while maintaining the reinforcement requirement defined by MSS SP-97. This is especially valuable for large-bore trunk lines where downtime and on-site modification carry high safety and cost risks.

We keep traceability records including heat number, material test report and sour service compliance documents attached to the shipment. Many EPC contractors across the Middle East struggle to source certified alloy saddle outlets with full sour service approval, and lead times can be long if relying on overseas stock.

If you are looking for ASTM B564 UNS N08825 saddle outlet or other MSS SP-97 nickel alloy branch connections for sour oil and gas projects in the UAE or Gulf region, send your drawing, size and sour service specification. We can support custom sizes and full third-party inspection packages.