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GB/T 44757-2024Anodizing coating on titanium and titanium alloys (English PDF)

钛及钛合金阳极氧化膜

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 26, 2024

Implementation date

May 1, 2025

Scope

GB/T 44757-2024 is the English-translated version of 钛及钛合金阳极氧化膜.

GB/T 44757-2024 is the Chinese national standard covering the coloured oxide film grown on titanium parts by anodizing — the split between alkaline and acidic anodizing and the film codes that go with each typical application, the technical requirements the film has to meet, the test methods, the inspection rules, and the marking, packaging, transport and storage, together with the accompanying documents and the order contents that tell the anodizer which film a buyer is actually asking for. First edition, under the China Nonferrous Metals Industry Association. In force from 1 May 2025. Issued on 26 October 2024, it has been in force since 1 May 2025.

Document preview — GB/T 44757-2024

National Standard of the People's Republic of China

ICS
77.150.50
Classification
H 64

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Terms and Definitions
  • 3.1 Anodic coating
  • 3.2 Anodizing coating product
  • 3.3 alkaline anodizing
  • 3.4 acidity anodizing
  • 4 Categories

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents". Drafting is required.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed by China Nonferrous Metals Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of Nonferrous Metals (SAC/TC 243).

This document was drafted by: Northwest Research Institute of Nonferrous Metals, Xi'an Sailon Additive Technology Co., Ltd., Xi'an Johnson New Materials Technology Co., Ltd.

Co., Ltd., Xi'an Taijin New Energy Technology Co., Ltd., and Baoti Group Co., Ltd.

The main drafters of this document are: Li Guangzhong, Wang Jianyong, Tan Ping, Wang Hui, Li Yaning, Mu Guolu, Guo Lei, Zhang Yuping, Shi Wen, Li Peinan.

Titanium and titanium alloy anodic oxide film

1 Scope

This document specifies the classification, technical requirements, test methods, inspection rules and marking, packaging, transportation, and other aspects of titanium and titanium alloy anodic oxide films.

Transport, storage, accompanying documents and order contents.

This document applies to anodic oxide films prepared on the surface of titanium and titanium alloy products using alkaline anodic oxidation or acidic anodic oxidation methods.

2 Normative references

GB/T 3620.1

GB/T 4340.1

GB/T 4957

GB/T 12967.1

GB/T 12967.6

GB/T 31563

GB/T 31838.4

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Anodic coating

After anodizing, a dense, uniform and colorful covering layer (film layer) is formed on the surface of the substrate.

Note. The substrate in this document is titanium and titanium alloy, which is called titanium and titanium alloy anodic oxide film.

3.2 Anodizing coating product

Products with an anodic oxide film on the surface.

3.3 alkaline anodizing

Anodic oxidation in alkaline electrolyte.

3.4 acidity anodizing

Anodic oxidation in an acidic electrolyte.

4 Categories

4.1 Anodic oxide films are divided into alkaline anodizing and acidic anodizing according to the preparation method. The film layer codes and typical applications are shown in Table 1.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Editions of GB/T 44757

EditionTitleRevisionStatus
GB/T 44757-2024Anodizing coating on titanium and titanium alloyscurrent editionCurrent

This page sells the current edition, GB/T 44757-2024. Earlier editions are listed for reference only.

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