Implementation Date: 1999
Chinese Name: Quality Carbon Structure Steels
Issued By:
English Version: Available
File Format: Word
Word Quantity: 4000 words
1. Aspect(s) Covered
This standard regulates size, shape, weight, tolerance, specification,
testing method, inspection rules, package, mark and quality certificate
of hot-rolled or hot-forged quality carbon structure steel.
This standard is applicable to quality carbon structure steel rod whose
diameter or thickness is not greater than 250mm. Through negotiation
between buyers and sellers, quality carbon structure steel rod whose
diameter or thickness is greater than 250mm can also be supplied.
Grades and chemical composition prescribed in this standard are also
applicable to steel ingot and steel billet products.
2. Normative References
The following standards contain provisions which, through reference in
this text, constitute provisions of this standard. All the Standards
stated below are effective at the publication of this Standard. All
standards are subject to revision, and parties to agreements based on
this standard are encouraged to investigate the possibility of applying
the most recent editions of the standards indicated below.
GB/T 222-1984 Method of Sampling Steel for Determination of
Chemical Composition and Permissible Variations for Product Analysis
GB/T224-1987 Determination of Depth of Decarburization of Steel
GB/T 226-1991 Etch Test for Macrostructure and Defect of Steels
GB/T 228-1987 Metallic Materials - Tensile Testing
GB/T 229-1994 Metallic Materials - Charpy Notch Impact Test
GB/T 231-1984 Metallic Materials - Brinell Hardness Test
GB/T 233-1982 Method for Forging Test of Metals
GB/T 702-1986 Hot-rolled Round and Square Steels -
Dimension, Shape, Weight and Tolerance
GB/T 908-1987 Forged Round and Square Steels - Dimension,
Shape, Weight and Tolerance
GB/T 1979-1980 Diagram of a Low Magnification Texture Blemish
Grading of Structural Steel
GB/T 2101-1989 General Requirements of Acceptance, Packaging,
Marking and Certification for Section Steel
GB/T 2975-1998 Steel and Steel Products - Location and
Preparation of Test Pieces for Mechanical Testing
GB/T 4336-1984 Method for Photoelectric Emission Spectroscopic
Analysis of Carbon Steel Medium and Low Alloy Steel
GB/T 6397-1986 Metallic Materials - Test Pieces for Tensile Testing
GB/T 7736-1987 Ultrasonic Inspecting Method for
Macro-structure and Imperfection of Steel
GB/T 10561-1989 Steel - Determination of Content of Non-metallic
Inclusion - Micrographic Method Using Standard Diagrams
GB/T 17616-1998 Unified Numbering System for Designations of
Iron, Steel and Alloy
GB/T 13299-1991 Steel - Determination of Microstructure
GB/T 15711-1995 Steel Products - Method for Etch Test of Tower
Sample
GB/T 17505-1998 Steel and Steel Products - General Technical
Delivery Requirements
YB/T 5148-1993 Metal - Methods for Estimating the Average
Grain Size
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