ISO 3763:1976 PDF

Name: ISO 3763:1976 — Wrought steels — Macroscopic methods for assessing the content of non-metallic inclusions
SKU: ISO 3763:1976
Price: 25 EUR
Availability: InStock

Wrought steels — Macroscopic methods for assessing the content of non-metallic inclusions

Название (английский):

ISO 3763:1976

Wrought steels — Macroscopic methods for assessing the content of non-metallic inclusions

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 1 августа 1976 г.
Издание:: ISO IS 3763 edition 1 version 1
ICS:: 77.040.99

Тип поставки:

Full version90 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:1 раб. дн. (перевод)

Цена:90 €

Описание (английский):

Macroscopic methods deal with non-metallic inclusions visible to the naked eye or with the aid of a magnifying glass with a magnification of not more than X 10. Only inclusions equal to or greater than 1 mm long are taken into consideration. Covers the blue fracture test method, the step machined test method, the magnetic particle inspection method.

Abstract

Похожие стандарты

Другие стандарты ISO

Overview

ISO 3763:1976 defines macroscopic methods for assessing the content of non‑metallic inclusions in wrought steels. The standard covers inspection techniques for inclusions visible to the naked eye or with a magnifying glass up to X10, and it considers only inclusions equal to or greater than 1 mm in length. Three principal methods are standardized: the blue fracture test, the step‑machined test, and the magnetic particle inspection method.

Key topics and technical requirements

Scope of measurement

Inclusions are measured by total number and length or thickness; no distinction of chemical type is required.
Only macroscopic inclusions (≥ 1 mm) and visibility at ≤ X10 magnification are in scope.

Blue fracture test

Fracture surface examined after heating to the blue‑brittleness range (approx. 300–350 °C) or by fracturing at ambient temperature and tempering the fracture surfaces to blue.
Qualitative comparison is made to a set of reference diagrams (Annex A); quantitative counting is also possible by agreement.
Annex A defines length categories (very short: 1–2.5 mm; short: 2.5–5 mm; long: >5 mm) and simple grading symbols.

Step‑machined test

Uses a cylindrical stepped test piece machined from bars/billets; each step presents a defined examination area.
Inclusions are counted on longitudinal surfaces; distributions are reported by length and/or thickness classes.
Test‑piece geometry and sampling positions are to be agreed between parties; step areas are sized to be comparable for evaluation.

Magnetic particle inspection

Applicable only to ferromagnetic steels. A magnetic field and ferromagnetic indicator fluid reveal distortions caused by inclusions.
Surface preparation: fine grinding perpendicular to rolling direction; replicas may be taken on adhesive tape for record keeping.
Typical indicator fluid guidance in the standard: powder particle size ~0.5–1 µm, concentration ~5–10 g/L; direct current magnetization often used (guidance on current intensity is provided).
Caution: other surface/subsurface irregularities and structural constituents can produce indications; confirmatory tests (e.g., dye penetrant) may be required.

Applications and users

Who uses it: metallurgists, quality control engineers, rolling and forging mills, inspection labs and purchasers of wrought steel products.

Practical uses:

Routine quality control of slabs, billets, bars, forgings and semi‑finished products.
Comparative evaluations of process changes (killing, melting practice, rolling reduction).
Acceptance testing and supplier audits where macroscopic inclusion content is a contractual criterion.

Related standards

ISO 3763 notes that a separate International Standard describes detailed magnetic particle inspection procedures; users should refer to that document for full operational requirements.

For complementary microscopic or metallographic analysis of finer inclusions, refer to other ISO standards covering microscopic methods (not covered in ISO 3763).

Keywords: ISO 3763, wrought steels, non‑metallic inclusions, macroscopic methods, blue fracture test, step‑machined test, magnetic particle inspection, inclusion stringers, sampling and preparation.

ISO 3763:1976 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 8689-1:2000

Water quality — Biological classification of rivers — Part 1: Guidance on the interpretation of biological qu…

ISO/ASTM51540-04(2012)

Standard Practice for Use of a Radiochromic Liquid Dosimetry System (Withdrawn 2020)

ISO/ASTM51204-04

Standard Practice for Dosimetry in Gamma Irradiation Facilities for Food Processing (Withdrawn 2013)

ISO/ASTM51431-05

Standard Practice for Dosimetry in Electron Beam and X-Ray (Bremsstrahlung) Irradiation Facilities for Food P…

ISO/ASTM52628-20e1

Standard Practice for Dosimetry in Radiation Processing

ISO/ASTM52921-13(2019)

Standard Terminology for Additive Manufacturing—Coordinate Systems and Test Methodologies

ISO/ASTMTR52917-EB

Additive Manufacturing — Round Robin Testing — General Guidelines

ISO/ASTM52901-17(2023)

Standard Guide for Additive Manufacturing – General Principles – Requirements for Purchased AM Parts