ASTM A435/A435M-17 (2023) PDF
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St ASTM A435/A435M-17 (2023)
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Ст ASTM A435/A435M-17 (2023)
Original standard ASTM A435/A435M-17 (2023) in PDF full version. Additional info + preview on request
Full title and description
ASTM A435/A435M-17(2023) — Standard Specification for Straight‑Beam Ultrasonic Examination of Steel Plates. This specification establishes procedures, equipment and acceptance criteria for straight‑beam, pulse‑echo ultrasonic examination of rolled, fully‑killed carbon and alloy steel plates intended to detect gross internal discontinuities such as pipe, ruptures or laminations.
Abstract
The standard specifies straight‑beam (pulse‑echo) ultrasonic examination methods (direct contact, immersion, or liquid column coupling) for steel plates 1/2 in. (12.5 mm) and thicker. It defines scanning patterns, acceptance criteria (for example, loss of back reflection indications that cannot be contained within a circle are unacceptable), and personnel qualification expectations for examiners. The document is concise (short practice/specification) intended to assure delivery of plate material free from gross internal defects.
General information
- Status: Active (reapproved/updated edition marked 2017 with 2023 reissue).
- Publication date: Original designation: 2017; current reissue/reapproval dated 1 November 2023 (designation shown as A435/A435M‑17(2023)).
- Publisher: ASTM International.
- ICS / categories: 77.040.20 — Non‑destructive testing of metals.
- Edition / version: A435/A435M‑17 (reissued/reapproved 2023).
- Number of pages: 2.
Scope
This specification covers straight‑beam pulse‑echo ultrasonic examination of rolled, fully‑killed carbon and alloy steel plates having thicknesses of 1/2 in. (12.5 mm) and over. It is intended to be used whenever contract, order or specification requires ultrasonic examination to ensure plates are free of gross internal discontinuities. The standard describes acceptable coupling methods (direct contact, immersion, liquid column), scanning patterns (continuous grid or parallel path scans), and criteria for unacceptable indications. Personnel performing examinations must be qualified and certified in accordance with ASNT SNT‑TC‑1A or an equivalent accepted qualification system.
Key topics and requirements
- Straight‑beam, pulse‑echo ultrasonic examination methodology for steel plates (contact, immersion, liquid column coupling).
- Minimum plate thickness covered: 1/2 in. (12.5 mm) and over.
- Scanning patterns: continuous grid scans or continuous parallel path scans (transverse or parallel to major plate axis).
- Acceptance criteria: gross internal discontinuities (pipe, ruptures, laminations) and indications causing total loss of back reflection that cannot be contained within a circle are unacceptable.
- Personnel qualification: requires certification in accordance with ASNT SNT‑TC‑1A or equivalent.
Typical use and users
Used by nondestructive testing (NDT) technicians and inspectors, steel‑plate manufacturers, purchasers and quality engineers, fabricators of pressure‑containing equipment (pressure vessels, boilers), and procurement/specification writers who require verification that steel plates are free of gross internal defects prior to fabrication or service.
Related standards
Commonly referenced documents and related practices include ASNT SNT‑TC‑1A (personnel qualification and certification), ASTM E114 (practice for pulse‑echo straight‑beam contact testing), ASTM E164 (contact ultrasonic testing of weldments), and ASTM E213 (ultrasonic testing of pipe and tubing). International personnel and examination qualification standards such as ISO 9712 and related ISO ultrasonic practice documents may also be relevant when contracts require alternate qualification systems.
Keywords
straight‑beam ultrasonic, pulse‑echo, steel plate, nondestructive testing (NDT), ASNT SNT‑TC‑1A, plate inspection, acceptance criteria, immersion testing, contact testing, liquid column coupling.
FAQ
Q: What is this standard?
A: ASTM A435/A435M‑17(2023) is a short ASTM specification that defines procedures and acceptance criteria for straight‑beam pulse‑echo ultrasonic examination of rolled, fully‑killed carbon and alloy steel plates.
Q: What does it cover?
A: It covers examination methods (direct contact, immersion, liquid column coupling), scanning patterns, acceptance criteria for gross internal discontinuities, and minimum thickness applicability (1/2 in. / 12.5 mm and over).
Q: Who typically uses it?
A: NDT technicians and inspectors, steel producers, fabricators and purchasers of steel plate for pressure‑containing and structural applications, quality managers, and contract/specification authors who need to require ultrasonic plate inspection.
Q: Is it current or superseded?
A: The designation is shown as A435/A435M‑17 with a 2023 reissue/reapproval (shown as A435/A435M‑17(2023)) and is listed as active; users should confirm the current status with ASTM if absolute currency is required.
Q: Is it part of a series?
A: It is part of ASTM’s collection of nondestructive testing practices and is typically used alongside related ASTM E‑series ultrasonic practices (for example E114, E164, E213) and qualification documents such as ASNT SNT‑TC‑1A.
Q: What are the key keywords?
A: straight‑beam, pulse‑echo, ultrasonic examination, steel plate, nondestructive testing, immersion testing, contact testing, liquid column coupling, ASNT SNT‑TC‑1A.