ISO 22778:2006 PDF

Name: ISO 22778:2006 — Metallic coatings — Physical vapour-deposited coatings of cadmium on iron and steel — Specification and test methods
SKU: ISO 22778:2006
Price: 25 EUR
Availability: InStock

Metallic coatings — Physical vapour-deposited coatings of cadmium on iron and steel — Specification and test methods

Название (английский):

ISO 22778:2006

Metallic coatings — Physical vapour-deposited coatings of cadmium on iron and steel — Specification and test methods

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 15
Дата публикации:: 30 октября 2006 г.
Издание:: ISO IS 22778 edition 1 version 1
ICS:: 25.220.40

Тип поставки:

Full version225 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:3 раб. дн. (перевод)

Цена:225 €

Описание (английский):

ISO 22778:2006 specifies requirements for high-purity cadmium coatings produced by physical vapour deposition on iron, steel, and other substrates. It provides test methods to determine that the requirements have been met, and a method for designating the cadmium and chromate conversion coatings and other supplementary treatments.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 22778:2006 - "Metallic coatings - Physical vapour‑deposited coatings of cadmium on iron and steel - Specification and test methods" - defines requirements and test methods for high‑purity cadmium coatings applied by physical vapour deposition (PVD) to iron, steel and other substrates. The standard covers coating composition, minimum thicknesses, designation conventions (including chromate conversion and supplementary treatments), sampling, rejection criteria and specified test methods to verify compliance. It also notes service limitations (not suitable where parts reach ≥225 °C) and highlights health/environment considerations for cadmium use.

Key topics and technical requirements

Scope and materials: High‑purity cadmium coatings produced by physical vapour deposition for iron, steel and other substrates. Emphasises vacuum PVD benefits (minimal hydrogen uptake vs electroplating).

Coating thickness: Minimum local thicknesses are specified (examples): steels - typical 15 µm; small threaded articles and bores - lower minima (e.g., Cd4 to Cd8 depending on diameter). Designation uses “Cd” plus micrometres (e.g., Cd5, Cd8).

Designation system: Full designation includes “vapour‑deposited coating ISO 22778 – [basis metal]/[pre‑treatment]/CdX/[chromate]/[supplementary treatment]”. Pre‑ and post‑heat treatments are indicated (e.g., [SR(150)2], [ER(400)12]).

Chromate & supplementary treatments: Chromate types and coatings are coded (A = clear, C = iridescent yellow, D = opaque olive‑green, F = black) with mass per unit area ranges; supplementary treatments (T1–T5) include paints, sealants, dyes, greases, wax. Chromium‑free alternatives are acceptable if corrosion performance is met.

Hydrogen embrittlement control: Addresses stress‑relief and post‑coating heat treatments and references pre/post‑treatment standards to reduce hydrogen embrittlement risk.

Test & inspection methods: Specifies sampling, measurement of thickness and adhesion (normative annexes) and references measurement/test standards (XRF, coulometric, microscopy, salt spray, etc.).

Safety and limits: Warns about cadmium toxicity and service temperature limits (225 °C).

Practical applications

Aerospace, defence, and critical mechanical components where cadmium’s corrosion resistance, ductility, electrical conductivity and low contact resistance are essential.

Fasteners, threaded assemblies, small bores and high‑strength steels where hydrogen embrittlement risk is a concern and where vacuum PVD is preferred over electroplating.

Situations requiring specified chromate conversion finishes or subsequent paint/sealant systems.

Related standards (selected)

ISO 9227 (salt spray tests), ISO 1463 / ISO 2177 / ISO 3497 (coating thickness methods), ISO 9587 / ISO 9588 (pre‑/post‑treatments for hydrogen embrittlement), ISO 4520 (chromate conversion coatings).

Keywords: ISO 22778, cadmium coatings, physical vapour deposition, PVD cadmium, coating thickness, chromate conversion, hydrogen embrittlement, test methods, coating designation.

ISO 22778:2006 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards (selected)

Технические детали

SIST EN ISO 9227:2023/A1:2024

Corrosion tests in artificial atmospheres - Salt spray tests - Amendment 1: Footnote of warning (ISO 9227:202…

BS ISO 14635-1:2023

Gears. FZG test procedures. FZG test method A/8,3/90 for relative scuffing load-carrying capacity of oils.

BS ISO 21771-2:2025

Cylindrical involute gears and gear pairs. Calculation and measurement of tooth thickness and backlash.

SIST EN ISO 3497:2002

Metallic coatings - Measurement of coating thickness - X-ray spectrometric methods (ISO 3497:2000)

ISO 9587:1999

Metallic and other inorganic coatings — Pretreatments of iron or steel to reduce the risk of hydrogen embritt…

ISO 9588:1999

Metallic and other inorganic coatings — Post-coating treatments of iron or steel to reduce the risk of hydrog…

SIST ISO 4520:1999

Chromate conversion coatings on electroplated zinc and cadmium coatings