Oil & Gas Component Selection
Oil & Gas Piping Components and Joint Hardware
Define the applicable standard, pressure class, material, service environment, dimensions, inspection scope and documentation package before selecting flanges, fittings or fasteners for an oil and gas project.
Explore by Application
Upstream (Exploration)
Offshore Platforms
Downstream (Refining)
Chemical Processing
Midstream Pipelines
Storage Terminals
Integrated Solutions for Critical Piping
Heavy-Duty Flanges
Designed for high-pressure sealing and severe corrosive media.
- API 6A Wellhead Flanges (6B & 6BX)
- Weld Neck Flanges (Class 150 - 2500)
- Ring Type Joint (RTJ) Facings
High-Pressure Fittings
Connection design, material and inspection scope must be confirmed for the specified service conditions.
- Forged Socket Weld Fittings (3000# / 6000#)
- MSS SP-97 Branch Outlets (Olets)
- Butt Weld Tees & Reducers
Structural Fasteners & Studs
High-tensile mating parts for secure flange joints.
- Double End Studs (DIN 938/939)
- Heavy Hex Bolts & Nuts
- All-Metal Lock Nuts (High-Temp)

Sour-Service Offshore Piping Upgrade
This composite scenario illustrates the information a buyer and supplier would need to review; it is not presented as a named SUNHY customer delivery. A project may require sour-service materials, high-pressure flange geometry, matched bolting, and an inspection plan. The actual design pressure, material grade, NACE/ISO 15156 applicability, PMI or NDE scope, and EN 10204 documentation must be confirmed from the project specification and purchase order.
Standards, Materials and Order Evidence
Material, standard and inspection requirements are reviewed for the specific product and order. Grade names alone do not establish suitability for pressure, temperature, corrosion or sour service.