ASME PTB-14-2023 / API 579-2

Description

ASME PTB-14-2023 is a guideline developed by the American Society of Mechanical Engineers (ASME). This document is part of the ASME PTB series, which provides supplementary guidance and explanations related to the ASME Boiler and Pressure Vessel Code (BPVC).

Overview of ASME PTB-14-2023:

• Title: “Guidance on the Use of Code Case N-830-2 for Evaluating Loss of Material Due to Corrosion or Erosion Using Elastic-Plastic Finite Element Analysis”
• Scope: The PTB-14-2023 guideline focuses on providing detailed instructions and best practices for applying Code Case N-830-2. This particular Code Case is part of the ASME Boiler and Pressure Vessel Code and offers an alternative method for evaluating pressure vessels and components that have experienced material loss due to corrosion or erosion. The alternative method utilizes elastic-plastic finite element analysis (EP-FEA) to assess the structural integrity of components that no longer meet the original thickness requirements.
• Key Areas Covered:
  1. Introduction to Code Case N-830-2: An explanation of the context and purpose of Code Case N-830-2, including its role within the ASME BPVC framework.
  2. Elastic-Plastic Finite Element Analysis (EP-FEA): An in-depth overview of the EP-FEA method, including its principles, the types of problems it can solve, and its application in evaluating components with reduced thickness due to material loss.
  3. Application Guidelines: Step-by-step instructions for applying EP-FEA in accordance with Code Case N-830-2. This includes guidance on setting up the finite element model, selecting appropriate material properties, and interpreting the results to make decisions about the continued use or repair of the component.
  4. Validation and Verification: Information on how to validate and verify the EP-FEA models used in the evaluation process, ensuring that the analysis results are accurate and reliable.
  5. Examples and Case Studies: The guideline may include practical examples and case studies that demonstrate the application of Code Case N-830-2 in real-world scenarios. These examples help clarify how the EP-FEA method is used to address specific challenges related to material loss.
  6. Limitations and Considerations: Discussion of the limitations of using EP-FEA and Code Case N-830-2, including situations where this approach may not be appropriate and alternative methods should be considered.
• Application: ASME PTB-14-2023 is intended for engineers, analysts, and inspectors who work with pressure vessels and components governed by the ASME BPVC. It provides essential guidance for those tasked with assessing the structural integrity of components that have experienced material loss and may no longer meet original design criteria.

Importance:

ASME PTB-14-2023 is crucial for industries that rely on pressure vessels and related components, such as the chemical, petrochemical, and power generation sectors. The guidance ensures that these critical components can be safely evaluated and used, even when they have undergone material degradation, helping to prevent failures, extend the life of equipment, and maintain compliance with safety standards.

Product Details

Revision: 2rd Edition

Published Date: June 26, 2024

Status: Active, Most Current

Document Language: English

Published By: ASME

Page Count: 664