1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificate as well as contract (or order form) contents of aluminium and aluminium alloys cold drawn (rolled) seamless tubes (hereinafter referred to as “tubes”) used for general industry.
This standard is applicable to the tubes with an outer diameter of not greater than 120.00mm.
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 228 Metallic materials - Tensile testing at ambient temperature
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 4436 Wrought aluminum and aluminum alloy tubes - Dimensions and deviations
GB/T 5126 Eddy current inspection method for cold drawn thin wall tubes of aluminum and aluminum alloy
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 16865 Test pieces for tensile test for wrought aluminum and magnesium alloy 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
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3 Requirements
3.1 Product classification
3.1.1 Designation and state
Designation and state shall meet those specified in Table 1. Other designations or states required by the purchaser shall be determined through negotiation between the supplier and the purchaser, and shall be indicated in the contract (or order form).
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Test methods
5 Inspection rules
6 Marking, packaging, transportation, storage and quality certificate
7 Contract (or order form) contents
