GB/T 32285-2015Hot-rolled Steel H Piles (English PDF)

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..

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.

6 Technical Requirements