ISO 10893-9:2011/Amd 1:2020

Overview

ISO 10893-9:2011/Amd 1:2020 is an internationally recognized amendment to the ISO 10893-9:2011 standard. It focuses on the non-destructive testing (NDT) of steel tubes, specifically addressing automated ultrasonic testing (AUT) for detecting laminar imperfections in strip or plate materials used in manufacturing welded steel tubes. Published by ISO, this amendment introduces a critical change to the acceptance criteria, enhancing the quality assurance processes in steel tube production.

This amendment reflects advances in testing methodology by refining the acceptance criteria to streamline defect detection and reduce unnecessary retesting, contributing to greater efficiency and reliability in steel manufacturing.

Key Topics

• Automated Ultrasonic Testing (AUT): Utilizes ultrasonic waves to detect internal defects such as laminar imperfections without damaging the steel strip or plate.
• Laminar Imperfections: Imperfections that occur in layers within steel strip or plate, which can adversely affect the integrity and performance of welded steel tubes.
• Acceptance Criteria: Amendment 1 revises the criteria for retesting signals during the ultrasonic inspection of steel strips or plates:
  • Original: Requires two consecutive retests showing signals below trigger/alarm level for passing.
  • Amendment 1: Only one retest is needed to confirm that all signals are below the trigger/alarm level to pass the test.
• Non-destructive Testing of Steel Tubes: Ensures the integrity of steel tubes during production without affecting the material’s usability.
• Quality Assurance in Steel Manufacturing: Helps manufacturers maintain high standards by accurately identifying suspect steel strips or plates promptly.

Applications

• Steel Tube Manufacturing: Ensures that input materials (strip or plate) for welded steel tubes are free from laminar imperfections, increasing product reliability.
• Welded Steel Tubes for Pressure Purposes: Critical in industries where these tubes are used for high-pressure applications, including oil and gas, automotive, and construction.
• Quality Control Departments: Facilitates swift acceptance or rejection of steel strips or plates based on ultrasonic testing, improving production flow.
• Non-Destructive Testing Services: Provides a standardized method for service providers offering ultrasonic testing of steel materials.
• Material Certification: Supports compliance with international standards by documenting non-destructive test results with updated acceptance criteria.

Related Standards

• ISO 10893 Series: Covers non-destructive testing of steel tubes, with other parts focusing on different testing methods such as eddy current or magnetic particle testing.
• ISO/IEC Directives, Part 1 and Part 2: Provide frameworks and editorial rules for the development and maintenance of ISO standards.
• ISO/TC 17/SC 19: The technical committee responsible for standards related to steel tubes for pressure purposes, ensuring continued alignment with industry needs.
• International Electrotechnical Commission (IEC) Standards: Collaborate with ISO on electrotechnical standardization, relevant to ultrasonic equipment used in testing.
• WTO TBT Agreement: Supports voluntary standards harmonizing product quality and test methods to facilitate global trade.

By adopting ISO 10893-9:2011/Amd 1:2020, steel producers and testing facilities can enhance the accuracy and efficiency of ultrasonic testing for laminar imperfection detection. This optimizes weld quality in steel tubes used across crucial industrial sectors, aligning with best international practices and supporting product safety and durability.