• Sockolet: Features a socket for easier welding, ideal for smaller pipes.
• Threadolet: Threaded connection for low-pressure applications.
• Latrolet: Angled branch for flexible piping layouts.
  The Weldolet’s design prioritizes high-pressure performance through full penetration welding, eliminating stress concentration points .

3.1. Chemical Composition

• 3.3. Corrosion Resistance
  • Sour gas (H₂S): Resistant to sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC).
  • Acidic media: Immune to sulfuric, phosphoric, and hydrochloric acids.
  • Seawater: Resists chloride pitting and crevice corrosion, making it suitable for offshore applications .

  4.1. Pressure Rating and Dimensions

  4.2. Industry Standards

  • ASME B16.11: Dimensions and pressure ratings for forged fittings.
  • MSS SP-97: Integrally reinforced branch outlets, ensuring structural integrity without additional reinforcement.
  • API 6A: Wellhead and Christmas tree equipment standards for oil and gas applications .

  5.1. Upstream Operations

  • 5.2. Midstream and Downstream
    • 6. Installation and Maintenance

       

      • Preheating: 100–150°C to prevent hydrogen embrittlement.
      • Filler Material: Use Inconel 625 (AWS A5.14 ERNiCrMo-3) for compatible weld strength.
      • Post-Weld Heat Treatment: Not required for Alloy 625 due to its low carbon content .

       

      • Corrosion Monitoring: Regular ultrasonic thickness (UT) measurements to detect wall thinning.
      • Inspection: Visual and radiographic testing (RT) for weld integrity, especially in sour service .

      The Forged Connection Alloy Steel Pipe Fittings Weldolet/Outlet 3/4 Inch 6000# Alloy 625 represents a pinnacle of engineering for high-pressure, corrosive environments in the petroleum industry. Its forged design, combined with Alloy 625’s exceptional material properties, ensures reliability in critical applications from subsea wells to refinery reactors. By adhering to stringent standards like ASME B16.11 and MSS SP-97, these fittings underscore the industry’s commitment to safety and efficiency in energy production.