ISO 8075:1985 PDF

Name: ISO 8075:1985 — Aerospace — Surface treatment of hardenable stainless steel parts
SKU: ISO 8075:1985
Price: 25 EUR
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Aerospace — Surface treatment of hardenable stainless steel parts

Название (английский):

ISO 8075:1985

Aerospace — Surface treatment of hardenable stainless steel parts

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 1 августа 1985 г.
Издание:: ISO IS 8075 edition 1 version 1
ICS:: 49.040

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Язык документа:

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Срок поставки:1 раб. дн. (перевод)

Цена:90 €

Описание (английский):

Specifies the requirements for parts made from martensitic, precipitation hardening and maraging stainless steels. Provides practical methods for removing contaminants and for obtaining suitable corrosion resistance for aerospace applications. The final surface treatments are mandatory except when a surface coating is specified.

Abstract

Overview

Key Topics

Surface Contamination and Cleaning

Organic contaminant removal: Techniques include solvent cleaning, alkaline degreasing, vapor degreasing, and emulsion cleaning with emphasis on removing oils, greases, inks, and paints.
Inorganic contaminant removal: Requires elimination of metallic and non-metallic contaminants such as oxides, scaling, and residues from manufacturing processes.
Passivation: Chemical treatment using nitric acid solutions (optionally with additives like sodium bichromate or molybdic acid) to remove surface iron contamination and enhance corrosion resistance.
Mechanical cleaning methods: Include abrasive blasting with inert media (oxidized aluminum or garnet), metal brushing using stainless steel brushes exclusive to stainless steel applications, and polishing.

Surface Finishing Processes

Polishing methods:
- Electrolytic polishing using proprietary techniques to achieve maximum corrosion resistance.
- Mechanical polishing with appropriate polishing compounds and equipment reserved for stainless steel parts.
- Abrasive blasting for as-cast, forged, machined, or brushed surfaces requiring finishing.
Quality of finish: Finished surfaces must be smooth, clean, free of visible corrosion or chemical attack, and exhibit a bright or satin-like appearance-not dull or gray.
Inspection and testing: Parts must pass corrosion resistance tests including:
- 24-hour exposure at 100% humidity and 38 ± 2 °C.
- Repeated immersion and drying cycles using distilled water at ambient temperature.

Process Controls and Packaging

Temperature and chemical composition of treatment baths must be carefully controlled with regular analysis to maintain efficacy.
Treated parts should be protected against contamination and mechanical damage during storage and transport through suitable packaging methods.

Applications

ISO 8075:1985 plays a critical role in ensuring the durability and reliability of stainless steel components in aerospace systems where corrosion resistance and surface integrity are paramount. Typical applications include:

Aircraft structural parts and fittings made from hardenable stainless steels.
Aerospace fasteners, fittings, and precision components requiring enhanced surface corrosion protection.
Parts subjected to harsh environmental conditions where surface contamination could compromise component lifespan or safety.

This standard aids aerospace manufacturers and suppliers in achieving consistent, high-quality surface treatments for stainless steel parts, supporting extended service life and compliance with aerospace safety regulations.

Related Standards

ISO 9227 - Corrosion tests in artificial atmospheres - Salt spray tests.
AMS 2700 - Passivation of stainless steel parts (commonly used in aerospace).
ISO 10088 - Stainless steels - Symbols, chemical composition, and technical delivery conditions.
EN 10204 - Metallic products - Types of inspection documents for traceability of surface treatments.

Adhering to ISO 8075:1985 in combination with these related standards ensures comprehensive quality control over stainless steel aerospace components, from material selection and processing through surface treatment and testing.

Keywords: ISO 8075, aerospace stainless steel, surface treatment, hardenable stainless steel, corrosion resistance, passivation, polishing, surface contaminants, martensitic stainless steel, precipitation hardening steel, maraging steel, aerospace components surface treatment, stainless steel cleaning methods.

Технические детали

Технический комитет: ISO/TC 20/SC 18 - Materials
SKU: ISO 8075:1985

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ISO 8075:1985 PDF

Abstract

Overview

Похожие стандарты

Key Topics

Surface Contamination and Cleaning

Surface Finishing Processes

Process Controls and Packaging

Applications

Related Standards

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…

SIST EN ISO 10088:2023

Small craft - Permanently installed fuel systems (ISO 10088:2022)

BS ISO 8075:2025

Aerospace. Surface treatment of hardenable stainless steel parts