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GB/T 46816-2025Aluminium alloy flange forgings - General specification (English PDF)

铝合金法兰锻件　通用技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 31, 2025

Implementation date

July 1, 2026

Scope

GB/T 46816-2025 is the English-translated version of 铝合金法兰锻件　通用技术规范.

GB/T 46816-2025 is the Chinese standard "Aluminium alloy flange forgings - General specification". Its scope clause reads: This document specifies the typical structural types, forming processes, technical requirements, test methods, inspection rules, and markings for aluminum alloy flange forgings.

Packaging, transportation and storage, and quality certification documents. This document applies to the manufacture of aluminum alloy flange forgings. Its clauses include terms and definitions.

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Document preview — GB/T 46816-2025

National Standard of the People's Republic of China

ICS: 77.120.10
Classification: J 32

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

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Typical structural types and forming processes
5.Technical Requirements
6.Test Methods 7.
7 Inspection Rules
8.Marking, Packaging, Transportation and Storage 9.
9.Quality certification documents

1 Scope

This document specifies the typical structural types, forming processes, technical requirements, test methods, inspection rules, and markings for aluminum alloy flange forgings.

Packaging, transportation and storage, and quality certification documents.

This document applies to the manufacture of aluminum alloy flange forgings.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 228.1 Metallic materials – Tensile testing – Part 1.Test method at room temperature

GB/T 229 Metallic materials Charpy impact test method

GB/T 231.1 Metallic materials – Brinell hardness test – Part 1.Test method

GB/T 2828 (All Parts) Sampling Inspection Procedures by Attributes

GB/T 2829 Periodic inspection sampling procedures and tables (applicable to the inspection of process stability)

GB/T 3190 Chemical composition of wrought aluminum and aluminum alloys

GB/T 3199 Packaging, marking, transportation and storage of aluminum and aluminum alloy processed products

GB/T 3246 (all parts) - Test methods for microstructure of wrought aluminum and aluminum alloy products

GB/T 6519 Ultrasonic Testing Methods for Wrought Aluminum and Magnesium Alloy Products

GB/T 7999 Direct-reading photoelectric emission spectroscopic analysis method for aluminum and aluminum alloys

GB/T 8005 (all parts) Terminology for Aluminum and Aluminum Alloys

GB/T 8541 Forging Terminology

GB/T 8545 Aluminum Alloy Forgings

GB/T 12966 Eddy Current Test Method for Conductivity of Aluminum and Aluminum Alloys

GB/T 16865 Test specimens and methods for tensile testing of wrought aluminum, magnesium and their alloys

GB/T 17432 Sampling Methods for Chemical Composition Analysis of Wrought Aluminum and Aluminum Alloys

GB/T 18851 (all parts) Nondestructive testing - Penetrant testing

GB/T 22639 Test method for exfoliation corrosion of aluminum alloy products

3 Terms and Definitions

The terms and definitions defined in GB/T 8005 (all parts) and GB/T 8541, as well as the following terms and definitions, apply to this document.

3.1

Flange blanks are produced by forging wrought aluminum alloys.

3.2

The process of forming forgings by combining upsetting, punching and rolling.

......
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

Normative references

GB/T 2828 · GB/T 3246 · GB/T 8005 · GB/T 18851

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