AS 2207-2007 (2017) PDF

Full title and description

AS 2207-2007 — Non‑destructive testing — Ultrasonic testing of fusion welded joints in carbon and low alloy steel. Fourth edition (2007), reconfirmed 2017. Specifies procedures, equipment and acceptance-related requirements for manual A‑scan ultrasonic examination of fusion welds in ferritic carbon and low‑alloy steels (thicknesses 6 mm and above).

Abstract

This standard sets out methods and requirements for manual ultrasonic testing of full or partial penetration fusion welded joints in carbon and low‑alloy ferritic steels of 6 mm or greater thickness, using A‑scan presentation and four specified sensitivity levels; it includes calibration, probe selection and procedures for sizing and interpretation.

General information

• Status: Current — reconfirmed in 2017 (reconfirmation approved in May 2017).
• Publication date: 12 July 2007 (4th edition, 2007).
• Publisher: Standards Australia.
• ICS / categories: 19.100 — Non‑destructive testing.
• Edition / version: 4th edition (AS 2207-2007), reconfirmation record 2017 (AS 2207-2007 REC:2017).
• Number of pages: 49 pages.

Scope

Applies to manual ultrasonic examination of full or partial penetration fusion welded joints in carbon and low alloy ferritic steels of thickness 6 mm or greater, using A‑scan presentation and four sensitivity levels. Excludes stainless steels and certain geometries (for example, small radius curvature less than 125 mm and some large‑diameter tubular fabrications where thickness/diameter ratios exceed specified limits). Purchasing information and recommended purchaser-supplied information are provided in an appendix.

Key topics and requirements

• Equipment characteristics, calibration procedures and use of calibration blocks and reference blocks; verification of linearity, gain, dominant frequency and resolution.
• Probe types and manipulation (normal and angle probes), couplants and probe handling guidance.
• Test methods and scanning procedures using A‑scan presentation, including use of four defined sensitivity levels.
• Sizing techniques and acceptance practice — e.g., 6 dB drop technique and last significant echo technique for sizing discontinuities.
• Guidance on echo behaviour, interpretation (spherical/specular/ragged/uneven reflectors) and compensation for curvature.

Typical use and users

Used by NDT practitioners and inspectors, welding engineers, quality managers, fabrication and inspection organisations, and regulatory bodies involved in pressure‑containing equipment, structural steelwork, pipelines and manufacturing where fusion welded ferritic steels are employed. It is used to develop inspection procedures, train and qualify technicians and to define acceptance criteria in contractual specifications.

Related standards

References and related documents cited in AS 2207 include Australian standards for calibration blocks and NDT terminology and methods (for example AS 2083, AS 1929, AS 1171, AS 1101.3) and applicable international NDT documents (ISO/EN standards on ultrasonic testing and vocabulary). Users should also consider contemporary ISO documents on ultrasonic testing and calibration when developing procedures.

Keywords

ultrasonic testing; NDT; fusion welded joints; ferritic steel; carbon steel; low alloy steel; A‑scan; calibration blocks; 6 dB drop; last significant echo; probe manipulation; inspection procedure.

FAQ

Q: What is this standard?

A: AS 2207-2007 is an Australian standard that specifies manual ultrasonic testing methods and requirements for fusion welded joints in carbon and low alloy ferritic steels (thickness ≥ 6 mm).

Q: What does it cover?

A: It covers equipment, calibration, probes, couplants, scanning methods using A‑scan presentation, sensitivity levels, sizing techniques (including 6 dB and last‑significant‑echo) and interpretation guidance for discontinuities in fusion welds. It excludes stainless steels and certain curved or tubular geometries as specified in the standard.

Q: Who typically uses it?

A: NDT technicians and inspectors, welding and quality engineers, inspection bodies and organisations responsible for fabrication and in‑service inspection of welded ferritic steel components.

Q: Is it current or superseded?

A: The 2007 edition (4th) was reconfirmed in 2017 and is recorded as current (AS 2207-2007 REC:2017). Users should verify whether later national or international ultrasonic testing standards or newer editions have been published that affect specific procedures.

Q: Is it part of a series?

A: AS 2207 sits alongside other Australian and international NDT standards (vocabulary, calibration blocks and method standards). It has earlier editions (1994, 1980/1979 and predecessors) and is part of the broader suite of standards governing ultrasonic testing practice.

Q: What are the key keywords?

A: Ultrasonic testing, fusion welded joints, ferritic steel, A‑scan, sensitivity levels, calibration blocks, probe manipulation, discontinuity sizing, NDT.