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GB/T 34560.1-2017: Structural steels -- Part 1: General technical delivery condition for hot-rolled products Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 34560.1-2017: Structural steels -- Part 1: General technical delivery condition for hot-rolled products---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/GBT34560.1-2017 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.01 H 40 Structural steels - Part 1.General technical delivery condition for hot-rolled products (ISO 630-1.2011, MOD) Issued on. OCTOBER 14, 2017 Implemented on. JULY 1, 2018 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 7 4 Classification and designation representation method... 8 5 Order content... 9 6 Size, shape, weight... 10 7 Technical requirements... 10 8 Inspection rules... 14 9 Test methods... 16 10 Packaging, marks and quality certificate... 18 Annex A (informative) Changes in the structure of this Part compared to ISO 630-1.2011... 19 Annex B (informative) Technical differences and reasons between this Part and ISO 630-1.2011... 20ForewordGB/T 34560 "Structural steels" consists of 6 parts. - Part 1.General technical delivery condition for hot-rolled products; - Part 2.Technical delivery conditions for structural steels for general purposes; - Part 3.Technical delivery conditions for fine-grained structural steel; - Part 4.Technical delivery conditions for high yield strength quenched and tempered structural steel plates; - Part 5.Technical delivery condition for atmospheric corrosion resisting steels; - Part 6.Technical delivery conditions for seismic-improved structural steels for building. This Part is Part 1 of GB/T 34560. This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part uses redrafting method to modify and adopt ISO 630-1.2011 "Structural steels - Part 1.General technical delivery conditions for hot-rolled products". Compared with ISO 630-1.2011, this Part made an adjustment in the structure. Annex A lists the control list on clause number between this Part and ISO 630- 1.2011. Compared with ISO 630-1.2011, there is technical differences in this Part. The terms involved in these differences have been marked by a vertical single line (丨) at the outer margins. Annex B gives a list of the corresponding technical differences and reasons. For easy use, this Part made the following editorial modifications. - deleted Annex A of ISO 630-1.2011; - deleted Bibliography of ISO 630-1.2011. This Part was proposed by China Iron and Steel Association. This Part shall be under the jurisdiction of National Technical Committee on Steel of Standardization Administration of China (SAC/TC 183). The drafting organizations of this Part. Shougang Corporation, Jiangsu Shagang Group Co., Ltd., Metallurgical Industry Information Standard Institute, Angang Steel Co., Ltd. Main drafters of this Part. Shi Li, Shen Qinyi, Luan Yan, Piao Zhimin, Liu Xuyuan, Wu Zhaohui, Tang Mu, Yang Zheng, Li Xiaobo, Qian Yadong. Structural steels - Part 1.General technical delivery condition for hot-rolled products1 ScopeThis Part of GB/T 34560 specifies the terms and definitions, classification and designation representation method, order content, size, shape, weight, technical requirements, inspection rules, test methods, packaging, marks and quality certificate of structural steels.2 Normative referencesThe 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 221, Notations for designations of iron and steel3 Terms and definitionsFor the purposes of this document, the terms and definitions defined in GB/T 13304.1, GB/T 13304.2 and GB/T 15574 as well as the followings apply. A heat treatment process that after the steel is hardened, it is heated to a temperature below Ac1, held for a certain period of time, and then cooled to room temperature.4 Classification and designation representation methodThe steel grades specified in the individual parts of GB/T 34560 are designated with steel names in accordance with GB/T 221.5 Order contentAfter negotiation between the supplier and the purchaser, and indicated in the contract, the following information can be selected as the order content of this Part. If the purchaser does not specify at the time of inquiries and ordering, the product shall be delivered in accordance with 5.1.6 Size, shape, weightThe size, shape, weight and tolerance of hot-rolled H-section steel and some T-shaped steel shall comply with the provisions of GB/T 11263.7 Technical requirementsThe chemical composition of the steel (smelting analysis) shall comply with the requirements of individual parts of GB/T 34560 and be indicated in the quality certificate [see 5.2a)]. According to the requirements of the purchaser, after consultation between the supplier and the purchaser, 5.2 options or other special inspections can be conducted.8 Inspection rulesThe analytical values of chemical analysis and mechanical properties use rounding off comparison method. The numerical rounding rules shall meet the requirements of GB/T 8170.9 Test methodsThe test method for the thickness direction of the steel plate shall be carried out in accordance with the provisions of GB/T 5313.Other steels may be referred to for implementation. The bending performance test method shall meet the requirements of GB/T 232.10 Packaging, marks and quality certificateUnless otherwise specified, the steel plate packaging, marks and quality certificate shall meet the requirements of GB/T 247.Packaging, marks and quality certificates of other steel products shall comply with the requirements of GB/T 2101.Annex A(informative) Changes in the structure of this Part compared to ISO 630-1.2011 This Part has structural adjustments compared to ISO 630-1.2011.See Table ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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