ISO 4992-2 pdf download

ISO 4992-2 pdf download Steel castings — Ultrasonic examination — Part 2: Steel castings for highly stressed components
1 ScopeThis part of ISO 4992 specifies the requirements for the ultrasonic examination of steel castings (with ferriticstructure) for highly stressed components, and the methods for determining internal discontinuities by the pulseecho technique.
This part of ISO 4992 applies to the ultrasonic examination of steel castings which have usually received agrain-refining heat treatment and which have wall thicknesses up to and including 600 mm. For greater walthicknesses, special agreements apply with respect to the test procedure and recording levels.This part of ISO 4992 does not apply to austenitic steels and joint welds.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references.only the edition cited applies. For undated references, the latest edition of the referenced document (including anyamendments)applies.ISO 5577,Non-destructive testing Ultrasonic inspection — Vocabulary
ISO 7963, Non-destructive testing — Ultrasonic testing — Specification for calibration block No. 2
EN 583-1, Non-destructive testing — Ultrasonic examination – Pat 1: General principles
EN 583-2,Non-destructive testing – Ultrasonic examination – Pat 2: Sensitivity and range settingEN 583-5.2005.Non-destructive testing — Utrasonic examination – Part 5: Characterization and sizing odiscontinuities
EN 1330-4Non-destructive testing -Terminology- Part 4: Terms used in ultrasonic testingEN 12223，Non-destructive testing Ultrasonic examination — Specification for calibration block No. 1
EN 12668-1Non-destructive testing-Characterization and verification of ultrasonic examinationequipment-Part 1: Instruments
EN 12668-2Non-destructiveequipment一 Part 2: Probes
testing 一 Characterization and verification of ultrasonic examination
EN 12668-3.Non-destructive testing 一 Characterization and verification of ultrasonicexaminationPart 3: Combined equipment
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5577, EN 583-1 , EN 583-2, EN 583-5 and EN 1 330-4, and the following, apply.
3.1
reference discontinuity echo size
smallest indication to be recorded during the assessment phase of an ultrasonic examination, usually expressed as an equivalent flat-bottomed hole diameter
3.2
point discontinuity
discontinuity, the dimensions of which are smaller than or equal to the sound-beam diameter
NOTE Dimensions in this part of ISO 4992 relate to length, width and/or dimension in the through-wall direction.
3.3
complex discontinuity
discontinuity, the dimensions of which are larger than the sound-beam diameter
NOTE Dimensions in this part of ISO 4992 relate to length, width and/or dimension in the through-wall direction.
3.4
planar discontinuity
discontinuity having two measurable dimensions
3.5
volumetric discontinuity
discontinuity having three measurable dimensions
3.6
special rim zone
outer rim-zone part with special requirements
NOTE Examples of special requirements are machined surfaces, higher stresses and sealing surfaces.
3.7
production welding
any welding carried out during manufacturing before final delivery to the purchaser
3.7.1
joint welding
production welding used to assemble components together to obtain an integral unit
3.7.2
finishing welding
production welding carried out in order to ensure the agreed quality of the casting