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SpecializedWelding

Gulf E & C  provide expert welding services for P91 (Grade 91 Cr-Mo alloy steel) and other high-alloy materials used in high-temperature and high-pressure applications. Our certified welders, approved WPS/PQR, and stringent QA/QC practices ensure long-term reliability, metallurgical integrity, and compliance with international codes and standards.

We specialize in welding for power plants, refineries, petrochemical units, HRSGs, boilers, piping networks, and critical process equipment.

Materials We Expertise In
  • P91 (ASTM A335 / A213 Grade 91)
  • P22 / P11 / P5 Alloy Steels
  • Chrome-Moly Materials (Cr-Mo)
  • Inconel / Monel / Hastelloy
  • Duplex & Super Duplex Stainless Steel
  • Austenitic Stainless Steel (SS304 / SS316)
Applications
  • High-pressure & high-temperature piping
  • Boiler & superheater tubes
  • HRSG piping & headers
  • Steam receivers, manifolds & spools
  • Heat exchangers & reactors
  • Turbine piping & steam lines
  • Power generation and refinery equipment
Our Welding Capabilities
  • SMAW / GTAW / GTAW-SMAW / SAW / MIG / TIG
  • Pre-weld heat treatment (PWHT control)
  • Pre-heating & interpass temperature monitoring
  • Orbital welding for tube jobs
  • Controlled filler material management
  • Weld overlay & hardfacing
  • ASME Section IX Welding Certifications
  • Qualified WPS / PQR / WPQ for P91 & alloy steel
  • Metallurgical inspection & hardness control
  • PMI testing, ferrite check, NDE as required
  • PWHT cycle monitoring & charting
WPS / PQR & QA/QC Compliance
NDT Testing Capabilities
  • Radiography (RT)
  • Ultrasonic Testing (UT)
  • Magnetic Particle Testing (MT)
  • Dye Penetrant Testing (PT)
  • Hardness Test / PMI Test