GB/T 4437.1-2023 PDF EnglishUS$290.00 · In stock · Download in 9 seconds
GB/T 4437.1-2023: Aluminium and aluminium alloys extruded tubes - Part 1: Seamless tubes Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 4437.1: Historical versions
Similar standardsGB/T 4437.1-2023: Aluminium and aluminium alloys extruded tubes - Part 1: Seamless tubes---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT4437.1-2023GB NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA ICS 77.150.10 CCS H 61 Replacing GB/T 4437.1-2015 Aluminium and aluminium alloys extruded tubes - Part 1. Seamless tubes Issued on. NOVEMBER 27, 2023 Implemented on. JUNE 1, 2024 Issued by. State Administration for Market Regulation; Standardization Administration of PRC. Table of ContentsForeword... 3 Introduction... 5 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 7 4 Classification... 7 5 Technical requirements... 8 6 Test methods... 14 7 Inspection rules... 15 8 Marking, packaging, transportation, storage, and quality certificate... 19 9 Contents of an order form (or contract)... 20 References... 211 ScopeThis document stipulates the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and quality certificate and order form (or contract) content of aluminium and aluminium alloy hot-extruded seamless tubes. This document applies to the production and inspection of aluminium and aluminium alloy hot-extruded seamless tubes (hereinafter referred to as "tubes") for general industrial use.2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text. For the dated referenced documents, only the versions with the indicated dates are applicable to this document; for the undated referenced documents, only the latest version (including all the amendments) is applicable to this document. 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/T3246.1 Inspection method for structure of wrought aluminium and aluminium alloy products - Part 1.Inspection method for microstructure GB/T 3246.2 Inspection method for structure of wrought aluminum and aluminum alloy products - Part 2.Inspection method for macrostructure GB/T 4436 Wrought aluminum and aluminum alloy tubes - Dimensions and deviations3 Terms and definitionsThe terms and definitions defined in GB/T 8005.1 and GB/T 26492.5 apply to this document.4 Classification4.1 Grade, supply state, and dimensions The grade, supply state, and dimensions of tubes shall comply with the requirements in Table 1. 4.2 Marking and an example Product markings are expressed in the order of product name, standard number, grade, supply state, and dimensions.5 Technical requirementsThe technical requirements of tubes shall comply with the provisions of Table 2.6 Test methodsThe test methods for tubes shall comply with the provisions of Table 8.If the purchaser has special requirements for the test method, it shall be determined through negotiation between the supplier and the purchaser, and shall be noted in the order form (or contract).7 Inspection rules7.1 Inspection and acceptance 7.1.1 Tubes shall be inspected by the supplier to ensure that the product quality complies with the provisions of this document and the order form (or contract), and a quality certificate shall be filled out. 7.2 Batch grouping Tubes shall be submitted for acceptance in batches, and each batch shall be composed of products of the same grade, supply state, heat and dimensions, with no limit on batch weight. 7.3 Weighing Tubes shall be checked and weighed (unless otherwise agreed between the supplier and the buyer). 7.4 Inspection items When there are no special requirements specified in the order form (or contract), the product inspection items shall comply with the provisions of Table 9. 7.6 Judgment of inspection results 7.6.1 Chemical composition If the chemical composition of any specimen fails, the batch of products will be deemed unqualified. 7.6.2 Dimensional deviation If the dimensional deviation of any tube fails, the tube will be deemed to be unqualified. 7.6.3 Tensile mechanical properties at room temperature, conductivity, resistance to stress corrosion, and susceptibility to intergranular corrosion 7.6.4 Ultrasonic flaw detection level If the ultrasonic flaw detection level of any tube fails, the tube will be deemed unqualified. 7.6.5 Macrostructure If the macrostructure of any specimen fails, it shall be handled as follows. 7.6.6 Microstructure When the microstructure of any specimen fails, if the tube's heat of heat treatment can be distinguished, the heat of heat treatment represented by the specimen will be judged to be unqualified; other heats will be inspected in sequence, and the qualified one will be delivered. If the heat of heat treatment cannot be distinguished, the batch of tubes will be judged to be unqualified. 7.6.7 Appearance quality If the appearance quality of any tube fails, the tube will be deemed unqualified. It is allowed to cut off the unqualified parts then re-inspect and deliver the qualified parts.8 Marking, packaging, transportation, storage, and quality certificate8.1 Marking 8.1.1 Product marking Product identification shall comply with the regulations of GB/T 42916. 8.2 Packaging, transportation, and storage The tubes are not packaged with oil, and the packaging method shall be specified in the order form (or contract); if not specified, it will be a bare package or simple packaging. Other packaging, transportation, and storage shall comply with the regulations of GB/T 3199. 8.3 Quality Certificate Each batch of tubes shall be accompanied by a product quality certificate stating.9 Contents of an order form (or contract)An order form (or contract) for the products listed in this document may include the following. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 4437.1-2023 be delivered?Answer: The full copy PDF of English version of GB/T 4437.1-2023 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 4437.1-2023_English with my colleagues?Answer: Yes. 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