Creep (Part 10) Damage Assessments Using INSPECT

Fixed Equipment in High Temperature Service (Creep)

Creep is a high temperature, time dependent failure mode that limits the life of stressed components.  Creep failures commonly limit the useful life of heater tubes but can be the governing failure mode for any high temperature pressure vessel or pipe.  The temperature at which creep becomes a concern depends on material and is generally around 700 degrees F. for carbon steels.  ASME Code allowable (tensile) stresses consider creep by assuming a 100,000 hour service life and limiting the allowable stress such that creep deformation (strain) does not exceed 1%.  Note also that the external pressure charts in the ASME Code do not consider creep buckling and are not used in these temperature ranges.

INSPECT makes performing Part 10 Level 1 and Level 2 Creep Assessments easy and fast. All API 579 calculations are reported in detail.
INSPECT Performs Part 10 Creep Assessments and Produces Detailed API 579 Reports

INSPECT and Part 10 Creep Damage Assessments

INSPECT makes performing Part 10 Level 1 and 2 creep assessments easy and fast.  It provides a consistent means of recording equipment operating histories and calculations.  All calculations are reported in detail along with any associated charts.  In addition, you don’t need to spend your time moving information between programs manually to create reports.  INSPECT’s all-in-one system creates professional looking, detailed reports with one button click.

Individual components or complete vessels can be modeled and assessed as required.  A convenient creep summary report lists the components included along with applicable Pass/Fail conclusions.  For Level 2 the MPC Project Omega, Larson-Miller Minimum, and Larson-Miller Average methods are available and can be run at the same time providing a very comprehensive report.

Performing API 579 Part 10 Creep Damage Assessments With INSPECT

More Information on Creep Can be Found at:

Creep and Creep Failures by The National Board of Boiler and Pressure Vessel Inspectors

Creep in Heater Tubes and Other Components by Inspectioneering

Increase Your Capabilities With INSPECT

API 579 Part 3 Ensure your operating procedures limit the risk of brittle fracture by automatically running Part 3 assessments. API 579 Part 4 & 5 Perform general and local metal loss assessments and quickly generate detailed reports. API 579 Part 6 INSPECT performs level 1, 2 and 3 pitting assessments and generates detailed API 579 reports with a click of a button. API 579 Part 7 Perform Level 1 and 2 assessments from Hydrogen Induced Cracking (HIC) and Hydrogen Blister damage. API 579 Part 8 Ensure that vessels subject to external pressure are within the allowed roundness tolerance with out-of-roundness assessments. API 579 Part 9 Level 1 and 2 assessments quickly determine which crack-like flaws can be safely left in service and which require more investigation. API 579 Part 10 Perform creep damage assessments by recording equipment operating histories and calculations. API 579 Part 11 Perform fire damage assessments and document conclusions in a consistent series of data entries and reports. API 579 Part 12 Perform Part 12 assessments and generate detailed API 579 reports. Level 1 and 2 dent, gouge and dent-gouge combinations are available. API 579 Part 13 Model laminations and provide rapid results so you can make the necessary mediation decisions with confidence API 579 Part 14 INSPECT’s fatigue assessment scans the vessel for other flaw types and allows the user to adjust the “remaining strength factor” (RSF) as required by API 579. API 510 Address in-service activities such as inspection, remaining life determination and repair. API 570 3D inspection data management and calculations simplify compliance with the requirements of the API-570 Code. API 653 Track tank thickness inspection measurements and provide calculation reports. Gage Integration Set up and retrieve inspection grids from thickness gages fast and easy. OSHA 1910 Meet the Mechanical Integrity requirements of OSHA1910.119 (j) and EPA Title 40 part 68.73. Undocumented Vessels Pressure Vessel Inspection Code requires owners to maintain permanent, progressive records as listed in API 510 Section 7.8 The INSPECT IDMS Show condition monitoring locations (CML’s) and API 579-1 flaws directly on pressure equipment models. Auto-Refrigeration MAT curves are employed to determine which process conditions put equipment at risk of failure by brittle fracture. Old ASME® Codes Supported Increase vessel life automatically by using the higher allowable stresses per NBIC Section 3.4. Pressure Relieving Devices Easily model pressure relieving devices (PRDs) on your fixed equipment. Excel Integration Export and import thickness inspection grids to and from Microsoft Excel. API 579-1 Part 3 MAT Curves API 510 API 570 API 653 Storage Tank Evaulations Thickness Gage Integration in INSPECT OSHA standards in COMPRESS Undocumented Vessels in INSPECT Inspection Data Monitoring System IDMS API 579 Part 9 Codes menu Combined Pitting and Local Metal Loss Flaws are Considered API 579-1 Part 12 dialog INSPECT performs API 579 FFS assessments and shows flaws on the 3D model Minimum Safe Operating Temperature (MSOT) curve in INSPECT API 579-1 Part 10 Creep Damage API 579-1 Part 11 Fire Damage Assessments API 579-1 Part 8 Out of Roundness Easily model pressure relieving devices (PRDs) with INSPECT Excel Integration with INSPECT API 579-1 Part 7 Hydrogen Cracking and Blister Damage API 579-1 Part 13 Lamination Diagram API 579 Part 14 Fatigue - Pressure Fluctuation Cycle