Saes-a-134 __top__ May 2026

Saudi Aramco Engineering Standard SAES-A-134 establishes the minimum mandatory requirements for External Corrosion Protection of metallic structures and equipment. This standard is a critical document for engineers and contractors working in Saudi Aramco's onshore and offshore industrial environments to ensure long-term asset integrity. Core Scope and Applications

. It establishes the minimum mandatory requirements for controlling external corrosion on metallic onshore and offshore infrastructure. Key Scope and Coverage saes-a-134

History and Development of SAES-A-134

  • Digital twins: Requirement for as-built 3D CAD model with all weld maps and NDE records.
  • Composite repair limits: Only temporary use for class 3/4 locations – permanent repair requires cut-out.
  • Climate adaptation: Minimum temperature design now includes AI-based ground temperature mapping for permafrost regions (Tabuk area).
  • SSC resistance: Materials must meet NACE MR0175/ISO 15156.
  • Cracking mitigation: Maximum hardness of 22 HRC, controlled inclusion shape (calcium treatment).
  • In-line inspection readiness: All sour service pipelines must be designed to accommodate intelligent pigs (minimum bend radius 5D, full-bore valves).
  • Geodetic Control: It mandates that all GPS surveys must be tied to the Saudi Aramco Geodetic Control Network. This ensures that a survey done in the Eastern Province is mathematically consistent with a survey in the Central Province.
  • Datum and Projections:

    | Property | Standard 316L (Annealed) | SAES-A-134 (Typical) | | :--- | :--- | :--- | | Tensile Strength (MPa) | ≥ 485 | ≥ 515 | | Yield Strength 0.2% (MPa) | ≥ 170 | ≥ 205 | | Elongation (%) | ≥ 40 | ≥ 35 | | Hardness (HRB / HBW) | ≤ 90 HRB | ≤ 22 HRC (approx. 235 HBW) – strict maximum | | Impact Toughness (Charpy V) | No requirement (unless specified) | 60 Joules at -18°C (Mandatory) | Digital twins: Requirement for as-built 3D CAD model

    Below is a formal technical write-up regarding the SAES-A-134 Benchmark. SSC resistance: Materials must meet NACE MR0175/ISO 15156

    Limitations and Exceptions: Be aware of any limitations or exceptions stated in SAES-A-134. Understanding what is not covered can be just as important as knowing what is covered.