GB/T 32285-2024 (GB/T 32285-2015) PDF English

GB/T32285-2015 (GBT32285-2015): PDF in English

GB/T 32285-2015 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.70 H 44 Hot-rolled Steel H Piles ISSUED ON. DECEMBER 10, 2015 IMPLEMENTED ON. NOVEMBER 1, 2016 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 Contents Foreword ... 3  1 Scope ... 4  2 Normative References ... 4  3 Order Content ... 7  4 Classification and Designation System ... 7  5 Dimensions, Shapes, Weights and Tolerances ... 8  7 Test Methods ... 15  8 Inspection Rules ... 15  9 Packaging, Marking and Quality Certificate ... 16  Annex A (Informative) Sectional Dimensions, Sectional Areas, Theoretical Weights and Sectional Characteristics of other steel H piles ... 17  Foreword This Standard was drafted according to the rules given in GB/T 1.1-2009. This Standard was proposed by China Iron and Steel Association. This Standard shall be under the jurisdiction of the Technical Committee on Steel of Standardization Committee of China (SAC/TC 183). The main drafting organizations of this Standard. Hebei Jinxi Steel Group Co., Ltd., Magang (Group) Holding Co., Ltd., China Metallurgical Information and Standardization Institute. and Central Research Institute of Building and Construction Co., Ltd.. The main drafters of this Standard. Zhao Yichen, Wu Baoqiao, Guo Xiaoshan, Liu Baoshi, Ye Gaoqi, Wang Yujie, Zhang Weibin, Li Yongfeng, Zhang Nan and Chen Xin. Hot-rolled Steel H Piles 1 Scope This Standard specifies the order content, classification and designation system, dimensions, shapes, weights and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of hot-rolled steel H piles. This Standard applies to hot-rolled steel H piles (hereinafter referred to as “steel H piles”). 2 Normative References The 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 standard. 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 223.4 Alloyed steel – Determination of Manganese Content – Potentiometric or Visual Titration Method GB/T 223.5 Steel and Iron - Determination of Acid-Soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method GB/T 223.9 Iron, Steel and Alloy – Determination of Aluminium Content – Chrom Azurol S Photometric Method GB/T 223.11 Iron, Steel and Alloy – Determination of Chromium Content – Visual Titration or Potentiometric Titration Method GB/T 223.12 Methods for Chemical Analysis of Iron,Steel and Alloy – the Sodium Carbonate Separation-Diphenyl Carbazide Photometric Method for the Determination of Chromium Content GB/T 223.14 Methods for Chemical Analysis of Iron, Steel and Alloy – the N- Benzoy-N-Phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content 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 223.36 Methods for Chemical Analysis of Iron, Steel and Alloy – the Neutral Titration Method for the Determination of Nitrogen Content after Distillation Separation GB/T 223.37 Methods for Chemical Analysis of Iron, Steel and Alloy – the Indophenol Blue Photometric Method for the Determination of Nitrogen Content after Distillation Separation GB/T 223.40 Iron, Steel and Alloy – Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method GB/T 223.53 Methods for Chemical Analysis of Iron, Steel and Alloy – the Flame Atomic Absorption Spectrophotometric Method for the Determination of Copper Content GB/T 223.54 Methods for Chemical Analysis of Iron, Steel and Alloy – the Flame Atomic Absorption Spectrophotometric Method for the Determination of Nickel Content 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 Method GB/T 223.60 Methods for Chemical Analysis of Iron, Steel and Alloy – the Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content GB/T 223.61 Methods for Chemical Analysis of Iron, Steel and Alloy – the Ammonium Phosphomolybdate Volumetric Method for the Determination of Phosphorus Content GB/T 223.62 Methods for Chemical Analysis of Iron, Steel and Alloy – the Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content GB/T 223.63 Methods for Chemical Analysis of Iron, Steel and Alloy – the Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content GB/T 223.64 Iron, Steel and Alloy – Determination of Manganese Content – Flame Atomic Absorption Spectrometric Method GB/T 223.67 Iron, Steel and Alloy – Determination of Sulfur Content – Methylene Blue Spectrophotometric Method GB/T 223.68 Methods for Chemical Analysis of Iron, Steel and Alloy – the Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content GB/T 223.69 Iron, Steel and Alloy-Determination of Carbon Contents – Gas- volumetric Method after Combustion in the Pipe Furnace GB/T 223.71 Methods for Chemical Analysis of Iron, Steel and Alloy – the Gravimetric Method after Combustion in the Pipe Furnace for the Determination of Carbon Content GB/T 223.72 Iron, Steel and Alloy – Determination of Sulfur Content – Gravimetric Method GB/T 223.74 Methods for Chemical Analysis of Iron, Steel and Alloy – the Combustion Gravimetric/ Gas-Volumetric Method for the Determination of Combined Carbon Content GB/T 223.76 Methods for Chemical Analysis of Iron, Steel and Alloy – the Flame Atomic Absorption Spectrometric Method for the Determination of Vanadium Content GB/T 223.79 Iron and Steel – Determination of Multi-Element Contents – X-Ray Fluorescence Spectrometry (Routine Method) GB/T 228.1 Metallic Materials – Tensile Testing – Part 1. Method of Test at Room Temperature GB/T 229 Metallic Materials – Charpy Pendulum Impact Test Method GB/T 2101 Generel Provisions on Acceptance, Package, Marking and Quality Certificate for Profile Steel GB/T 2975 Steel and Steel Products – Location and Preparation of Test Pieces for Mechanical Testing GB/T 4336 Standard Test Method for Spark Discharge Atomic Emission Spectrometric Analysis of Carbon and Low-Alloy Steel (Routine Method) Central deviation Height (type) ≤ 300 and width ≤ 200 ± 2.5 Height (type) > 300 or width > 200 ± 3.5 Web curvature W Height (type) < 400 ≤ 2.0 ≥ 400 ≤ 2.5 Flange curvature F ≤ 1.5 End face tilt E ≤ 1.6% (H or B), but the allowable minimum value 3.0 Flange leg end outer edge passivation Do not let a round bar with a diameter equal to 0.18t2 get through. Note 1. See the diagrams for the measuring locations of dimensions and shapes. Note 2. The curvature is measured along the flange end. 5.3 Weights and Tolerances 5.3.1 Steel H piles shall be delivered according to their theoretical weight (the theoretical weight is calculated according to the density 7.85 g/cm3). It can also be indicated in a contract agreed upon by the seller and the buyer that steel H piles can also be delivered according to the actual weight. 5.3.2 The tolerances of the delivery weight of steel H piles shall meet the specifications of GB/T 11263. The tolerance is calculated as the difference between the actual weight and the theoretical weight divided by the theoretical weight, expressed as a percentage. 5.4 Example of marking The marking of the specifications of steel H piles. expressed as HP and height H value × width B value × web thickness t1 value × flange thickness t2. 6 Technical Requirements 6.1 Designation and chemical composition 6.1.1 The designation and chemical composition (smelting analysis) of steel H piles shall meet the specifications of Table 3; and the carbon equivalent shall meet the products. if there is still one unqualified in the re-inspection results, then the batch of products is unqualified. --Take a double quantity of samples from the same batch of products for ... .......
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