GB/T 13237-2013 PDF EnglishUS$70.00 · In stock · Download in 9 seconds
GB/T 13237-2013: Cold rolled quality carbon structural steel sheets and strips 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 13237: Historical versions
Similar standardsGB/T 13237-2013: Cold rolled quality carbon structural steel sheets and strips---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/GBT13237-2013GB ICS 77.040.50 H 46 NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA Replacing GB/T 13237-1991 Cold Rolled Quality Carbon Structural Steel Sheets and Strips Issued on. DECEMBER 17, 2013 Implemented on. SEPTEMBER 1, 2014 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the People's Republic of China. Table of ContentsForeword... 3 1 Scope... 4 2 Normative References... 4 3 Classification and Code... 6 4 Order Contents... 6 5 Dimension, Appearance, Weight and Permissible Deviation... 7 6 Technical Requirements... 7 7 Test Method... 12 8 Test Rules... 13 9 Packaging, Marking and Quality Certificate... 13ForewordThis Standard was drafted according to the rules specified in GB/T 1.1-2009. This Standard replaces "Cold-rolled Quality Carbon Structural Steel Sheets and Strips" (GB/T 13237-1991) and modifies the following main technical contents. - CHANGE the standard name; - REVISE the thickness range TO be no greater than 4 mm; - ADD the order contents; - SPECIFY the chemical composition for each designation definitely; - DELETE the designation of rimmed steel; - ADD the designation 55, 60, 65 and 70, etc.; - ADD the supply state and requirements of steel sheets and strips surface oil; - REVISE the tensile test gauge length TO fixed gauge length; - CANCEL the drawing grade; - CANCEL the requirement of cupping test; - GRADE the surface quality of steel strip; REDUCE the permissible abnormal part FROM 8% TO 6%. This Standard is proposed by the China Iron and Steel Association. This Standard is under the jurisdiction of the National Technical Committee on Iron and Steel of Standardization Administration of China (SAC/TC 183). Main drafting organizations of this Standard. Angang Steel Company Limited, Zhangjiagang Yangtze Cold-rolled Sheet Company Limited, Shougang Group, China Metallurgical Information and Standardization Institute. Main drafters of this Standard. Guan Jichun, Chen Yue, Ren Cuiying, Li Ran, Tang Mu, Dong Li, Chen Gang, Zhang Zhongzheng. The previous editions of standard replaced by this Standard are as follows. - GB/T 710-1988, GB/T 13237-1991. Cold Rolled Quality Carbon Structural Steel Sheets and Strips1 ScopeThis Standard specifies the classification and code, order contents, dimensions, appearance, weight and permissible deviation, technical requirements, test method, test rules, packaging, marking and quality certificate, etc. of cold rolled quality carbon structural steel sheets and strips. This Standard is applicable to the cold rolled quality carbon structural steel sheets and strips (hereinafter referred to as steel sheets and strips) not greater than 4mm in thickness and not less than 600 mm in width.2 Normative ReferencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document. GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products GB/T 223.3 Methods for Chemical Analysis of Iron, Steel and Alloy - The Diantipyrylmethane Phosphomolybdate Gravimetric Method for the Determination of Phosphorus Content GB/T 223.9 Iron Steel and Alloy - Determination of Aluminium Content - Chrom Azurol S Photometric Method GB/T 223.18 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Thiosulfate Separation Iodimetric Method for the Determination of Copper Content GB/T 223.19 Methods for Chemical Analysis of Iron Steel and Alloy - The Neocuproine-Chloroform Extraction Photometric Method for the Determination of Copper Content GB/T 223.23 Iron Steel and Alloy - Determination of Nickel Content - The Dimethylglyoxime Spectrophotometric Method GB/T 223.58 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Arsenite-sodium Nitrite Titrimetric Method for the Determination of Manganese Content GB/T 223.59 Iron Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method3 Classification and Code3.1 The steel sheets and are classified by surface as. 3.2 The steel sheets and strips are classified by edge condition as.4 Order Contents4.1 The following information shall be provided in the Contract or the Order by the Demander at the time of order. 4.2 If information, e.g. dimension and roughness precision, surface quality grade, edge condition and packaging mode, is not specified in the order contract, the product of this standard shall be supplied as trimmed steel sheets and strips in common dimension and roughness precision and higher grade surface quality, and shall be packaged in the mode given by the Supplier.5 Dimension, Appearance, Weight and Permissible DeviationThe dimension, appearance, weight and permissible deviation of steels sheets and strips shall meet the requirements of GB/T 708.6 Technical Requirements6.1 Designation and chemical composition 6.1.1 The designation and chemical composition (smelting analysis) of steel shall be in accordance with those specified in Table 1.Based on the agreement of both the Supplier and the Demander and as noted in the contract, other designations as specified in GB/T 699 may be supplied. 6.2 Delivery condition 6.2.1 Steel sheets and strips shall be delivered as annealed and leveled. For single-rolled plate, it may be delivered as annealed. Through agreement between the Supplier and the Demander, they may also be delivered as other heat treatment conditions, where the mechanical property is subject to negotiation between the Supplier and the Demander. 6.3 Mechanical and processing properties 6.3.1 The mechanical properties of steel sheets and strips shall meet those specified in Table 6.3.2 Bending test shall be carried out once the Demander requires. The bending test shall meet those specified in Table 3.After the bending test, the bending external surface of specimen shall be free from visible crack, fracture or deflection. 6.4 Metallographic structure 6.4.1 Grain size For Designation 08, 08Al, 10, 15 and 20 steel sheets and strips with a thickness larger than 0.5mm, the grain size shall be Grade 6 or finer, and is allowed to be delivered as thin-pancake grain. 6.5 Surface quality 6.5.1 Harmful defects such as bubble, crack, scar, fold and inclusion shall be free from the surface of steel sheets and strips. Steel sheets and strips shall be free from Designation7 Test Method7.1 Visual inspection shall be carried out for the surface quality of steel sheets and strips. 7.2 The dimension and appearance measurement of steels sheets and strips shall meet the requirements of GB/T 708.8 Test Rules8.1 The steel sheets and strips shall be accepted in batches, and each batch shall be composed of steel sheets and strips with same designation, furnace No., specification and heat treating system. 8.2 The re-inspection and judgment of steel sheets and strips shall comply with GB/T 17505.9 Packaging, Marking and Quality CertificateThe packaging, marking and quality certificate of steel sheets and strips shall meet the requirements of GB/T 247. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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