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GB/T 33162-2016 English PDF (GBT33162-2016)

GB/T 33162-2016 English PDF (GBT33162-2016)

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GB/T 33162-2016: Continuously hot-rolled steel sheet and strip for cold-forming steel sections

This Standard specifies the designation, ordering content, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certification of continuously hot-rolled steel sheet and strip for cold-forming steel sections.
GB/T 33162-2016
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.50
H 46
Continuously Hot-rolled Steel Sheet
and Strip for Cold-forming Steel Sections
ISSUED ON. OCTOBER 13, 2016
IMPLEMENTED ON. SEPTEMBER 1, 2017
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 Application Scope ... 4
2 Normative References ... 4
3 Ordering Content ... 6
4 Designation ... 6
5 Dimensions, Shape and Weight ... 7
6 Technical Requirements ... 7
7 Test Methods ... 13
8 Inspection Rules ... 14
9 Packaging, Marking and Quality Certification ... 14
Annex A (Informative) Table of Comparison of the Designations of This
Standard with the Similar Domestic and Overseas Designations ... 15
Foreword
This Standard was drafted in accordance with 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 National Standardization Technical Committee on Steels (SAC/TC 183).
The drafting organizations of this Standard. Wuhan Steel Processing Co., Ltd., China Metallurgical Information and Standardization Institute, Shanghai Jialeng Steel Sections Co., Ltd., Magang (Group) Holding Co., Ltd., Hebei JIinxi Iron and Steel Group Co., Ltd..
The main drafters of this Standard. Xi Tianhui, Guo Bin, Zhang Weixu, Jiang Chunmin, Hu Xuewen, Zhao Yichen, Zhu Shaowen, Huang Hongjiang, Zeng Ping, Chen
Xiaohong, Chen Jiqing, Liang Wen, Tao Junhui, Song Chang.
Continuously Hot-rolled Steel Sheet
and Strip for Cold-forming Steel Sections
1 Application Scope
This Standard specifies the designation, ordering content, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certification of continuously hot-rolled steel sheet and strip for cold-forming steel sections.
This Standard applies to continuously hot-rolled steel strip and steel sheet cut transversely from steel strip for cold-forming steel sections of thickness not greater than 25.4 mm (hereinafter referred to as steel sheet and strip).
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies 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 223.11, Iron, Steel and Alloy ?€? Determination of Chromium Content ?€? Visual Titration or Potentiometric Titration Method
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 223.17, Methods for Chemical Analysis of Iron Steel and Alloy - the Diantipyrylmethane Photometric Method for the Determination of Titanium 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 223.23, Iron, Steel and Alloy ?€? Determination of Nickel Content ?€? the Dimethylglyoxime Spectrophotometric Method
GB/T 223.26, Iron, Steel and Alloy ?€? Determination of Molybdenum Content ?€? the Thiocyanate Spectrophotometric Method
GB/T 223.40, Iron, Steel and Alloy ?€? Determination of Niobium Content by the Sulphochlorophenol S 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 223.63, Methods for Chemical Analysis of Iron, Steel and Alloy ?€? the Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content
GB/T 223.68, 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 223.75, Iron Steel and Alloy ?€? Determination of Boron Content ?€? Methanol Distillation-Curcumin Photometric Method
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 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 232, Metallic Materials ?€? Bend Test
GB/T 247, General Rule of Package Mark and Certification for Steel Plates (Sheets) and Strips
GB/T 699, Quality Carbon Structural Steels
GB/T 700, Carbon Structural Steels
GB/T 709, Dimension, Shape, Weight and Tolerances for Hot-rolled Sheets and Strips
GB/T 1591, High Strength Low Alloy Structural Steels
GB/T 2975, Steel and Steel Products ?€? Location and Preparation of Test Pieces for Mechanical Testing
GB/T 4171, Atmospheric Corrosion Resisting Structural Steel
GB/T 4336, Carbon and Low-alloy Steel ?€? Determination of Multi-element Contents ?€? Spark Discharge Atomic Emission Spectrometric Method (Routine Method) GB/T 8170-2008, Rules of Rounding off for Numerical Values and Expression and Judgement of Limiting Values
GB/T 10561-2005, Steel ?€? Determination of Content of Nonmetallic Inclusions ?€? Micrographic Method Using Standards Diagrams
GB/T 17505, Steel and Steel Products ?€? General Technical Delivery Requirements GB/T 20066, Steel and Iron ?€? Sampling and Preparation of Samples for the Determination of Chemical Composition
3 Ordering Content
3.1 The contract for ordering in accordance with this Standard shall also include the following content.
a) a reference to this Standard;
b) product name;
c) designation;
d) specifications and thickness accuracy (ordinary thickness accuracy if not indicated);
e) delivery condition;
f) weight;
g) special requirements.
3.2 Steel strips are delivered in untrimming condition when the edge condition is not indicated in the contract. Steel sheets are delivered as agreed on by the supplier and the purchaser.
4 Designation
Steels are designated by adding the suffix ?€?-LW?€? to the corresponding designations of GB/T 699, GB/T 700, GB/T 1591, GB/T 4171.
LW ?€? the initials of Chinese Pinyin of cold forming.
8 Inspection Rules
8.1 Steel sheet and strip shall be inspected and accepted by the technical supervision department of the supplier.
8.2 Steel sheet and strip shall be accepted by batch. Each batch consists of steel sheet and strip of the same furnace number, designation, specification and delivery condition. The weight of each batch is not greater than 60 t. Steel strip of rolling coil weight greater than 30 t may be grouped into two rolling coils.
8.3 The specimen number and sampling methods for each batch of steel sheet and strip shall be as specified in Table 7.
8.4 The rules for retest and evaluation of steel sheet and strip shall be as specified in GB/T 17505.
8.5 The test results of steel sheet and strip shall be rounded off by comparing with standard values. Carbon equivalent shall be calculated in accordance with formula and then rounded off. The rounding rules shall be as specified in GB/T 8170. 9 Packaging, Marking and Quality Certification
Packaging, marking and quality certification shall be as specified in GB/T 247.

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