Detail of GB/T 6892-2006

Introduction of GB/T 6892-2006

1 Scope This standard specifies the requirements, test methods, test rules and marking, packing, transportation and storage as well as contract contents of the wrought aluminium and aluminium alloy extruded profiles for general engineering. This standard is applicable to the wrought aluminium and aluminium alloy extruded profiles for general engineering. 2 Normative References The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this code are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies. GB/T 228 "Metallic Materials--Tensile Testing at Ambient Temperature" GB/T 3190 "Wrought Aluminium and Aluminium Alloy-Chemical Composition" GB/T 3199 "Wrought Aluminium and Aluminium Alloy Products-Packing, Marking, Transporting and Storing" GB/T 3246.1 "Wrought Aluminium and Aluminum Alloys Products Inspection Method for Microstructure" GB/T 3246.2 "Aluminum and Aluminum Alloys--Inspection Method of Microstructure for Wrought Products" GB/T 6519 "Process for Ultrasonic Inspection of Wrought Aluminum Alloy Products" GB/T 6987 "Chemical Analysis Methods of Aluminium and Aluminium Alloys" (All the Parts) GB/T 7999 "Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys" GB/T 12966 "The Method for Determining Aluminium Alloys Conductivity Using Eddy Current" GB/T 14846 "Aluminium and Aluminium Alloy Extruded Profiles-Tolerances on Dimensions and Form" GB/T 16865 "Test Pieces for Tensile Test for Wrought Aluminum and Magnesium Alloy Products" GB/T 17432 "Methods of Sampling for Analyzing the Chemical Composition of Wrought Aluminum and Aluminum Alloy" YS/T 591 "Heat Treatment of Wrought Aluminium and Aluminium Alloys" 3 Requirements 3.1 Product Classification 3.1.1 Profile classification The functional classification of profiles is shown as in Table 1. Table 1 Profile type Available alloy Profile for vehicle a 5052, 5083, 6061, 6063, 6005A, 6082, 6106, 7003, 7005 Other profiles 1050A, 1060, 1100, 1200, 1350, 2A11, 2A12, 2017, 2017A, 2014, 2014A, 2024, 3A21, 3003, 3103, 5A02, 5A03, 5A05, 5A06, 5005, 5005A, 5051A, 5251, 5052, 5154A, 5454, 5754, 5019, 5083, 5086, 6A02, 6101A, 6101B, 6005, 6005A, 6106, 6351, 6060, 6061, 6261, 6063, 6063A, 6463, 6463A, 6081, 6082, 7A04, 7003, 7005, 7020, 7022, 7049A, 7075, 7178 a Profiles for vehicle refer to the profiles that are applicable to the railroad, subway and light rail vehicle structures as well as other vehicle structures. 3.1.2 Designation illustration a) Subway profile manufactured from 6005A alloy with the supply condition at T6 and profile code of ELGDX-15 will be designated as: Profile for vehicle 6005A-T6 ELGDX-15 GB/T 6892-2006 b) Profiles for electrical apparatus manufactured from 6063 alloy with supply condition at T5 and profile code of EL1755 will be designated as: Profile 6063-T5 EL1755 GB/T 6892-2006 3.2 Chemical Compositions The chemical compositions of such product with alloy designations of 5005A, 5051A, 6101B, 6106, 6261, 6463, 6463A, 6081, 7049A and 7178 shall be in accordance with those specified in Table 2, and those of the products of other ally designations shall be in accordance with those specified in GB/T 3190.

Contents of GB/T 6892-2006

Contents Foreword I 1 Scope 2 Normative References 3 Requirements 3.1 Product Classification 3.2 Chemical Compositions 3.3 Permissible Dimension Variation 3.4 Mechanical Property 3.5 Conductivity 3.6 Ultrasonic Test Result 3.7 Stress Corrosion Resistance 3.8 Exfoliation Corrosion Property 3.9 Anti-fatigue Corrosion Property 3.10 Macrostructure 3.11 Microstructure 3.12 Appearance quality 4 Test Methods 4.1 Chemical Composition Analysis Method 4.2 Dimension Test Method 4.3 Mechanical Property Test Method 4.4 Conductivity Testing 4.5 Ultrasonic Test Method 4.6 Stress Corrosion Test Method 4.7 Exfoliation Corrosion Test Method 4.8 Anti-fatigue Corrosion Test Method 4.9 Inspection Method of Macrostructure 4.10 Inspection Method of Microstructure 4.11 Inspection of Appearance Quality 5 Heat Treatment System 6 Test Rules 6.1 Test and Acceptance 6.2 Group 6.3 Test Item 6.4 Sampling 6.5 Judgment of Test Result 7 Marking, Packing, Transportation and Storage 7.1 Marking 7.2 Packing, Transportation and Storage 7.3 Quality Certificate 8 Contract Contents Annex A (Normative) Test Method for Stress Corrosion of the Ring Samples of Wrought Aluminium Alloy Products A.1 Scope A.2 Method Principle A.3 Reagents A.4 Test Solution A.5 Test Equipments A.6 Sample Preparation A.7 Test Procedures A.8 Test Result and Assessment A.9 Test Report Annex B (Normative) Test Method for Exfoliation Corrosion of Wrought Aluminium Alloy Products B.1 Scope B.2 Method Principle B.3 Reagents B.4 Test Solutions B.5 Test Equipments B.6 Samples B.7 Test Procedures B.8 Test Result and Assessment B.9 Test Report Annex C (Normative) Test Method for Fatigue Corrosion of Aluminium Alloys C.1 Scope C.2 Method Principle C.3 Reagents C.4 Test Solution C.5 Test Equipments C.6 Samples C.7 Test Procedures C.8 Test Result and Assessment C.9 Test Report