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GB/T 32285-2015 PDF in English


GB/T 32285-2015 (GB/T32285-2015, GBT 32285-2015, GBT32285-2015)
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GB/T 32285-2015: PDF in English (GBT 32285-2015)

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 ...
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.