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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

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
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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
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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)
View Fasteners →
Representative offshore piping components for engineering review
Representative Engineering Scenario

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.

ServiceDesign conditions to confirm
MaterialsGrade and sour-service limits
EvidenceInspection plan by 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.

ASME B16.5 / B16.47 API 6A NACE MR0175 EN 10204 3.1 MTC NDE Scope by Order