GB/T 3274-2017 English PDF (GBT3274-2017)

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GB/T 3274-2017: Hot-rolled plates, sheets and strips of carbon structural steels and high strength low alloy structural steels
GB/T 3274-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 70.140.50
H 46
GB/T 3724-2017
Replacing GB 912 and GB/T 3274-2007
Hot-rolled Plates, Sheets and Strips of Carbon Structural
Steels and High Strength Low Alloy Structural Steels
ISSUED ON. FEBRUARY 28, 2017
IMPLEMENTED ON. NOVEMBER 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 Information ... 5 
4 Dimensions, Shape and Weight ... 5 
5 Technical Requirements ... 5 
6 Test Methods ... 7 
7 Inspection Rules ... 8 
8 Packaging, Marking and Quality Certification ... 8 
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard incorporates and revises GB 912-2008, Hot-rolled Sheets and Strips of
Carbon Structural Steels and High Strength Low Alloy Structural Steels, and GB/T
3274-2007, Hot-rolled Plates and Strips of Carbon Structural Steels and High Strength
Low Alloy Structural Steels.
Compared with GB 912-2008, Hot-rolled Sheets and Strips of Carbon Structural Steels
and High Strength Low Alloy Structural Steels, and GB/T 3274-2007, Hot-rolled Plates
and Strips of Carbon Structural Steels and High Strength Low Alloy Structural Steels,
the main technical changes of this Standard are as follows.
-- it changes the delivery length of steel strips with a defect into not more than 6%
of the total length of each roll of steel strip (see 5.6.4);
-- it adds intrinsic quality requirements (see 5.7); and
-- it extends inspection lot weight and changes into lot grouping by furnace (see 7.2).
This Standard was proposed by China Iron and Steel Industry Association.
This Standard shall be under the jurisdiction of China National Standardization
Technical Committee on Steels (SAC/TC 183).
The drafting organizations of this Standard. An Steel Co., Ltd., Chongqing Iron and Steel
(Group) Co., Ltd., Shougang Group Co., Ltd., China Metallurgical Information
Standardization Institute, HBIS Co., Ltd. Tangshan Branch, Ma Steel (Group) Holding
Co., Ltd., Fujian Sangang Group Co., Ltd. and Wuhan Iron and Steel (Group) Co., Ltd.
The main drafters of this Standard. Liu Xuyuan, Du Dasong, Pu Zhimin, Shi Li, Zhang
Weixu, Deng Cuiqing, Fang Tuoye, Liu Jianfeng, Liu Meihong, Su Haolu, Tang Zhigang,
Li Zehan and Zhao Liping.
The editions of the standard replaced by this Standard are as follows.
-- GB/T 912-1989 and GB 912-2008;
-- GB/T 3274-1988 and GB/T 3274-2007.
Hot-rolled Plates, Sheets and Strips of Carbon Structural
Steels and High Strength Low Alloy Structural Steels
1 Application Scope
This Standard specifies the order content, dimensions, shape, weight, technical
requirements, test methods, inspection rules, packaging, marking and quality
certification for hot-rolled plates, sheets and strips of carbon structural steels and high
strength low alloy structural steels.
This Standard applies to hot-rolled plates, sheets and strips of carbon structural steels
and high strength low alloy structural steels with a thickness not greater than 400 mm
(hereinafter referred to as steel plates (sheets) and strips).
2 Normative References
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 222, Permissible Tolerances for Chemical Composition of Steel Products
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 Rules of Packaging, Marking and Certification for Steel Plates
(Sheets) and Strips
GB/T 700, Carbon Structural Steels
GB/T 709, Dimensions, Shape, Weight and Tolerances for Hot Rolled Plates,
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 8170, Rules of Rounding off for Numerical Values and Expression and
Judgement of Limiting Values
GB/T 14977, General Requirements for Surface Condition of Hot-Rolled Steel