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Positive Material Identification (PMI)

positive-material-identification

Detection Capabilities

  • Yield Strength
  • Tensile Strength
  • Carbon Equivalency (CE)
  • Pipe Grade

TDW has integrated a variety of NDE tools and techniques into our industry-leading patented Positive Material Identification (PMI) process for gas transmission and hazardous liquids pipelines.

PMI determines the mechanical and chemical properties of in-situ pipeline steel, joint by joint. By combining this information with additional assessment data, pipeline owners and operators can generate reliable, traceable, and verifiable records to support maximum allowable operating pressure (MAOP) and maximum operating pressure (MOP). 

Key Features

  • Appropriate for all pipe vintages less than or equal to X70, including legacy pipelines
  • Performed in-situ, while the pipeline remains in service at full pressure
  • Provides identification of mechanical and chemical properties on a joint-by-joint basis
  • A final report is delivered electronically in as few as five days
  • Patented PMI process (Patent #9,880.056) verified by third party laboratory

TDW has integrated a variety of NDE tools and techniques into our industry-leading patented Positive Material Identification (PMI) process for gas transmission and hazardous liquids pipelines.

PMI determines the mechanical and chemical properties of in-situ pipeline steel, joint by joint. By combining this information with additional assessment data, pipeline owners and operators can generate reliable, traceable, and verifiable records to support maximum allowable operating pressure (MAOP) and maximum operating pressure (MOP). 

Detection Capabilities

  • Yield Strength
  • Tensile Strength
  • Carbon Equivalency (CE)
  • Pipe Grade

Key Features

  • Appropriate for all pipe vintages less than or equal to X70, including legacy pipelines
  • Performed in-situ, while the pipeline remains in service at full pressure
  • Provides identification of mechanical and chemical properties on a joint-by-joint basis
  • A final report is delivered electronically in as few as five days
  • Patented PMI process (Patent #9,880.056) verified by third party laboratory