SIST EN ISO 3785:2023

Name: SIST EN ISO 3785:2023 — Metallic materials - Designation of test specimen axes in relation to product texture (ISO 3785:2023)
SKU: SIST EN ISO 3785:2023
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Metallic materials - Designation of test specimen axes in relation to product texture (ISO 3785:2023)

Название (английский):

Metallic materials - Designation of test specimen axes in relation to product texture (ISO 3785:2023)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 17
Дата публикации:: 13 сентября 2023 г.
Издание:: ISO 3785:2023
ICS:: 77.040.10

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Описание (английский):

This document specifies a method for designating test specimen axes in relation to product texture by means of an X-Y-Z orthogonal coordinate system. This document applies equally to unnotched and notched (or precracked) test specimens. This document is intended only for metallic materials with uniform texture that can be unambiguously determined. Test specimen orientation is decided before specimen machining, identified in accordance with the designation system specified in this document, and recorded.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 3785:2023 - Metallic materials: Designation of test specimen axes in relation to product texture specifies a clear, uniform method to designate test specimen orientation using an X‑Y‑Z orthogonal coordinate system. The standard applies to both unnotched and notched (or precracked) specimens made from metallic materials with uniform texture (grain flow) that can be unambiguously determined. Specimen orientation must be decided before machining, identified per the designation system, and recorded with test results.

Key topics and requirements

X‑Y‑Z coordinate convention

X = direction of principal deformation / maximum grain flow
Y = direction of least deformation
Z = normal to the X‑Y plane

Specimen types covered: sheet, plate, bar (flat‑rolled products), cylinders, thick‑ and thin‑walled tubes (including helical grain flow), castings, and specimens containing welds or produced by additive manufacturing.

Unnotched and notched specimens: designations and exceptions for specimens aligned with, midway between, or at other angles to the product’s characteristic grain‑flow directions.

Exceptions:

Not aligned - use two‑letter designations (e.g., XY, XZ) or specify the angle if at another orientation.
No grain flow (e.g., some castings) - orientation must be specified on part drawings and test results shall carry no orientation designation.

Documentation: orientation must be decided and recorded prior to machining; the designation system is intended for use in material specification and comparative testing.

Additive manufacturing and welds: the 2023 edition includes explicit references for weld testing and a new subclause on additive manufacturing.

Practical applications

Ensures consistent reporting of mechanical test results (elongation, reduction of area, fracture toughness, impact resistance) where properties depend on grain flow and orientation.

Used in quality control, materials characterization, failure analysis, and specification of metallic products across industries (steel, aluminium, aerospace, automotive, manufacturing).

Facilitates repeatable comparisons between batches, suppliers, or processing routes by standardizing specimen orientation reporting.

Who should use this standard

Materials testing laboratories and technicians preparing specimens

Metallurgists and materials engineers specifying test programs

Manufacturers and certification bodies involved in product qualification and quality assurance

Standards committees and procurement teams requiring unambiguous specimen orientation in material specifications

Related standards and context

Adopted by CEN as EN ISO 3785:2023, superseding EN ISO 3785:2006.

Prepared by ISO/TC 164 (Mechanical testing of metals) with input from CEN/TC 459/SC 1.

Includes references to welding test methods (e.g., ISO 15653) and provides guidance relevant to additive manufacturing test orientations.

Keywords: EN ISO 3785:2023, metallic materials, test specimen axes, product texture, X‑Y‑Z coordinate system, grain flow, specimen orientation, mechanical testing.

SIST EN ISO 3785:2023

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications

Who should use this standard

Related standards and context

Технические детали

ISO 3785:2023

Metallic materials — Designation of test specimen axes in relation to product texture

ISO 3785:2006

Metallic materials — Designation of test specimen axes in relation to product texture

SIST EN ISO 15653:2018

Metallic materials - Method of test for the determination of quasistatic fracture toughness of welds (ISO 156…