ISO 16468:2025 PDF

Name: ISO 16468:2025 — Investment castings (steel, nickel alloys and cobalt alloys) — General technical requirements
SKU: ISO 16468:2025
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Investment castings (steel, nickel alloys and cobalt alloys) — General technical requirements

Название (английский):

ISO 16468:2025

Investment castings (steel, nickel alloys and cobalt alloys) — General technical requirements

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 26 мая 2025 г.
Издание:: ISO IS 16468 edition 3 version 1
ICS:: 77.140.80

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Описание (английский):

This document specifies technical requirements for castings (steel, nickel alloys, and cobalt alloys) produced by the investment casting process. NOTE The International Standards specifying metallurgical material requirements for steel, nickel alloy, and cobalt alloy casting grades are listed in the Bibliography. The requirements stated in this document form an integral part of the material specification. In cases of conflict, the requirements of this specification take precedence over the individual material specification requirements.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 16468:2025 - Investment castings (steel, nickel alloys and cobalt alloys) - General technical requirements - defines the technical and inspection requirements for parts produced by the investment (lost‑wax) casting process in steel, nickel and cobalt alloy families. The third edition updates the 2015 version and sets requirements that become an integral part of any material specification; where conflicts occur, ISO 16468:2025 takes precedence.

Keywords: ISO 16468:2025, investment castings, steel castings, nickel alloy castings, cobalt alloy castings, general technical requirements.

Key topics and technical requirements

Materials and manufacture

Primary heats are to be produced by electric furnace routes, with optional refining (e.g., AOD, VOD, VIM) unless otherwise agreed.
Sub‑heats (remelts) are made by induction furnaces, with or without atmosphere protection; limitations on re‑melting of revert material are specified.

Inspection and testing

General inspection follows ISO 4990; sampling rules specify how chemical and mechanical test samples relate to primary heats and sub‑heats.
Test‑block options and specimen locations are illustrated (Figure 1) and guidance is provided for mechanical test sampling.

Non‑destructive examination (NDE) and supplementary requirements

A suite of supplementary options can be specified in orders: magnetic particle, liquid penetrant, radiographic, ultrasonic inspection, weld preparation inspection, impact testing, hardness testing (Brinell, Rockwell, Vickers), ferrite determination in duplex/austenitic steels, and more.

Quality, cleaning and finishing

Cleaning/dressing requirements ensure surface conditions are sufficient for acceptance checks; visual acceptance standards are to be agreed (ISO 11971 may be used).
Production welding must comply with ISO 11970.

Additional provisions

Rules for retests, marking, decarburization concerns, metallurgical cleanliness, sampling frequencies and documentation are included or referenced.

Practical applications and users

ISO 16468:2025 is used by:

Foundries and investment‑casting manufacturers specifying process, melting and remelt practices.

Quality, inspection and metallurgy engineers setting acceptance criteria and sampling plans.

Purchasers and procurement teams who include casting technical requirements in contracts.

NDE technicians and welding engineers applying inspection, welding and repair requirements.

Industries that rely on high‑integrity precision cast components - e.g., aerospace, power generation, oil & gas, medical devices and specialist engineering - where controlled metallurgical and inspection practices are critical.

Related standards

Normative and referenced standards commonly used with ISO 16468:2025 include:

ISO 4990 (general technical delivery requirements for steel castings)

ISO 4992‑1 / 4992‑2 (ultrasonic testing)

ISO 4993 (radiographic testing)

ISO 4986 / ISO 4987 (magnetic particle / liquid penetrant testing)

ISO 6506‑1, ISO 6507‑1, ISO 6508‑1 (hardness tests)

ISO 10474 (inspection documents) and ISO 11970 (welding procedure specification)

ISO 13520 (ferrite determination in austenitic stainless steel castings)

Use ISO 16468:2025 when specifying investment‑casting technical requirements to ensure consistent metallurgical practice, sampling, inspection and acceptance criteria for steel, nickel and cobalt alloy parts.

ISO 16468:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

ISO 4990:2003

Steel castings — General technical delivery requirements

ISO 11971:1997

Visual examination of surface quality of steel castings

SIST EN ISO 11970:2026

Specification and qualification of welding procedures for production welding of steel castings (ISO 11970:202…

ISO 4992-1:2006

Steel castings — Ultrasonic examination — Part 1: Steel castings for general purposes

ISO 4993:2009

Steel and iron castings — Radiographic inspection

BS ISO 4986:2020

Steel and iron castings. Magnetic particle testing

ISO 4987:1992

Steel castings — Penetrant inspection

SIST EN ISO 6506-1:2014

Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1:2014)