GB/T 33369-2016 Aluminium alloy clad sheets, strips and foils for brazing
1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate, and content of the order (or contract) for aluminium alloy clad sheets, strips and foils for brazing.
This standard is applicable to aluminium alloy clad sheets, strips and foils for brazing (hereinafter referred to as clad material).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3190 Chemical composition of wrought aluminium and aluminium alloys
GB/T 3199 Wrought aluminium and aluminium alloy products - Packing, marking, transporting, and storing
GB/T 3246.1 Inspection method for structure of wrought aluminum and aluminum alloy products - Part 1: Inspection method for microstructure
GB/T 3880.3 Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 3: Tolerances on forms and dimensions
GB/T 4156 Metallic materials - Sheet and strip - Erichsen cupping test
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 16865 Test pieces and method for tensile test for wrought aluminium and magnesium alloys products
GB/T 17432 Methods for sampling for analyzing the chemical composition of wrought aluminum and aluminum alloys
GB/T 20975 (all parts) Methods for chemical analysis of aluminium and aluminium alloys
GB/T 27675 Designation system for aluminium and aluminium alloys composite sheets, strips and foils
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
aluminium alloy clad sheets
sheet made by roll-bonding two or more types of aluminium alloy materials
3.2
aluminium alloy clad strips, foils
strip or foil made by roll-bonding two or more types of aluminium alloy materials (hereinafter referred to as coil material)
3.3
brazing cladding
cladding layer in the clad material that serves the brazing function
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation, storage and quality certificate
8 Purchase order (or contract) content
Annex A (Informative) Typical designations, tempers, clad ratios, and dimensions for fin-use clad foils, tube-making clad strips, and deep-drawing clad sheets
Annex B (Informative) Solidus/liquidus temperatures and brazing temperatures of matrix and brazing cladding alloys of clad material
Annex C (Informative) Method for representing clad material codes
