MSS-SP-97 Branch Outlet Supplier for Singapore Project

Haihao Group has completed the production, non-destructive evaluation, and ocean-freight packaging for a diverse order of high-pressure branch connection fittings destined for an offshore oil and gas project in Singapore. Designed to reinforce header openings without full-size reducing tees, this shipment highlights our flexible manufacturing range across high-yield, low-temperature, and standard carbon steel grades.

Technical Specifications & Order Breakdown

Produced in strict accordance with the MSS-SP-97 standard, the order features tailored run-by-branch size combinations to match specific header wall thicknesses:

High-Yield Carbon Steel (ASTM A694 F65):

• 3″ x 10″ | Wall Thickness: STD x 0.438″
• 4″ x 10″ | Wall Thickness: STD x 0.438″
• 1″ x 8″ | Wall Thickness: XXS x 1.000″ (Extra Heavy Wall)

Low-Temperature Carbon Steel (ASTM A350 LF2 CL1):

• 8″ x 38″ | Wall Thickness: S-20 x 0.406″
• 14″ x 38″ | Wall Thickness: S-10 x 0.406″

Standard Carbon Steel (ASTM A105):

• 12″ x 26″ | Wall Thickness: 0.281″ x STD

Surface Finish: All items coated with high-grade anti-rust oil for maritime protection.

MSS SP-97 branch outlet high yield ASTM A694 F65 and A350 LF2 butt weld branch fittings

Engineering Advantages of the MSS-SP-97 Branch Connection

When branch lines connect to large header pipes, welded stub-in joints create localized stress concentrations. Utilizing an MSS-SP-97 branch outlet provides integral reinforcement at the crotch region, transferring bending moments safely back into the main run pipe while minimizing fluid turbulence.

Manufacturing a thick-wall butt weld branch connection (such as the 1″ x 8″ XXS x 1.000″ A694 F65 fitting) requires precise forging control and automated CNC contouring. The bottom weld bevel is profiled to match the exact curvature of the header pipe, ensuring uniform root gap fit-up and reducing field welding hours for our Singaporean customer.

Material Diversity: High-Yield, Low-Temp, and Standard Grades

To satisfy varied process conditions within the same pipeline system, three distinct material specifications were utilized:

ASTM A694 Grade F65: Delivers a minimum yield strength of 65,000 psi (450 MPa), matching high-yield line pipes in high-pressure tie-ins. Every ASTM A694 F65 branch fitting underwent rigorous magnetic particle testing (MT) to confirm surface soundness.

ASTM A350 Grade LF2 CL1: Normalization heat treatment ensures Charpy V-notch impact toughness at -46°C (-50°F), making these A350 LF2 low temp branch outlet units ideal for cryogenic or sub-sea environments.

ASTM A105: Provides reliable forged strength for general high-temperature transmission lines.

As a trusted custom run size branch outlet supplier, Haihao Group ensures every MSS-SP-97 branch outlet undergoes full dimensional check, heat lot traceability verification, and surface roughness control.

Packaging and Maritime Logistics

To prevent rust formation during maritime transit across humid Southeast Asian shipping lanes, all fittings received a uniform coat of clear anti-rust oil. Machined weld bevels were fitted with protective edge caps before being packed into steel-banded, seaworthy wooden cases.

Looking for a certified high pressure butt weld branch fitting manufacturer for your next piping modification or new build? Contact the Haihao Group technical sales team today for factory-direct quotes and engineering support.