GB/T 18669-2012_English: PDF (GB/T18669-2012)
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Steel bars for ship anchor chain
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| Standard ID | GB/T 18669-2012 (GB/T18669-2012) | | Description (Translated English) | Steel bars for ship archor chain | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H44 | | Classification of International Standard | 77.140.70 | | Word Count Estimation | 10,139 | | Older Standard (superseded by this standard) | GB/T 18669-2002 | | Quoted Standard | GB/T 222; GB/T 223.5; GB/T 223.9; GB/T 223.12; GB/T 223.14; GB/T 223.16; GB/T 223.19; GB/T 223.26; GB/T 223.40; GB/T 223.54; GB/T 223.62; GB/T 223.63; GB/T 223.67; GB/T 223.69; GB/T 223.85; GB/T 226; GB/T 228.1; GB/T 229; GB/T 232; GB/T 702; GB/T 1979; GB | | Drafting Organization | Chongqing Iron & Steel (Group)Co., Ltd. | | Administrative Organization | National Steel Standardization Technical Committee | | Regulation (derived from) | National Standards Bulletin No. 28 of 2012 | | Proposing organization | China Iron and Steel Association | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the marine anchor chain round order contents, size, shape, weight and tolerances, grades, technical requirements, test methods, inspection rules and packaging marking and quality certification. This standard applies to a diameter o | | Standard ID | GB/T 18669-2002 (GB/T18669-2002) | | Description (Translated English) | Steel bars for ship anchor chain | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H44 | | Classification of International Standard | 77.140.70 | | Word Count Estimation | 8,895 | | Date of Issue | 2002/3/10 | | Date of Implementation | 2002/7/1 | | Drafting Organization | Chongqing Iron & Steel (Group) Corporation | | Administrative Organization | National Steel Standardization Technical Committee | | Regulation (derived from) | National Standards Bulletin 2012 No. 28 | | Proposing organization | The former State Bureau of Metallurgical Industry | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China | | Summary | This Standard specifies the hot-rolled marine anchor chain round the size, shape, quality and tolerances, technical requirements, test methods, inspection rules and packaging marking and quality certificate. This Standard is applicable to a diameter of 13. 0mm ~ 190. 0mm of chain round (hereinafter referred to as round). |
GB/T 18669-2012
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.70
H 44
Replacing GB/T 18669-2002
Steel bars for ship anchor chain
ISSUED ON: NOVEMBER 05, 2012
IMPLEMENTED ON: MAY 01, 2013
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Ordering content ... 6
4 Designation representation method ... 6
5 Dimensions, shape, weight, and tolerances ... 6
6 Technical requirements ... 7
7 Test methods ... 10
8 Inspection rules ... 11
9 Packaging, marking, and certification ... 12
Appendix A (Informative) Correspondence table of steel grades and
designations of steel bars for anchor chain specified by various classification
society codes ... 13
Steel bars for ship anchor chain
1 Scope
This Standard specifies the ordering content, dimensions, shape, weight and
tolerances, designation, technical requirements, test methods, inspection rules,
packaging, marking, and certification of steel bars for ship anchor chain.
This Standard is applicable to hot-rolled steel bars for anchor chain (hereinafter
referred to as steel bars) with a diameter of 13 mm~190 mm.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 222 Permissible Tolerances for Chemical Composition of Steel
Products
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 -
Chrome azurol S photometric 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 223.16 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Chromotropic Acid Photometric Method for the Determination of Titanium
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 4336 Carbon and low-alloy steel - Determination of multi-element
contents - Spark discharge atomic emission spectrometric method (routine
method)
GB/T 20066 Steel and Iron - Sampling and Preparation of Samples for the
Determination of Chemical Composition
YB/T 081 Rule for Rounding Off of Numerical Values and Judgement of
Testing Values for Technical Standards of Metallurgy
3 Ordering content
Contracts or orders for ordering in accordance with this Standard shall include
the following:
a) Standard number;
b) Product name;
c) Designation;
d) Delivery state;
e) Dimensions;
f) Weight;
g) Special requirements.
4 Designation representation method
The designation of steel bars consists of the first letter “C”, “M” of Chinese pinyin
of “ship” and “anchor” and the minimum tensile strength, for example, CM490.
5 Dimensions, shape, weight, and tolerances
5.1 Dimensions and tolerance
Dimensions and tolerance of steel bars shall comply with the provisions of GB/T
702.
5.2 Length and tolerance
According to the requirements of the purchaser, it may be delivered according
to the fixed length and multiple length. The length tolerance is 0~+50 mm. A
cleaning depth. The cleaning depth is calculated from the actual dimension and
shall not exceed half of the tolerance. There shall be no more than one place
where the maximum cleaning depth is reached on the same cross-section.
7 Test methods
7.1 Inspection items, sampling quantities, sampling methods, test
methods
The inspection items, sampling quantities, sampling methods, and test methods
of each lot of steel bars shall comply with Table 4.
Table 4 -- Inspection items, sampling quantities, sampling methods, test
methods
No. Inspection items
Sampling
quantities, pieces Sampling methods Test methods
1 Chemical composition 1/furnace GB/T 20066 GB/T 223 or GB/T 4336
2 Tensile test 1 GB/T 2975 and 7.2 GB/T 228.1
3 Bend test 1 GB/T 2975 GB/T 232
4 Impact test 3 GB/T 2975 and 7.2 GB/T 229
5 Macrostructure 2
Different steels
equivalent to the
ingot head
GB/T 226, GB/T 1979
6 Dimensions, shape Piece by piece -
Suitable measuring tools which
meet the accuracy requirements
7 Surface Piece by piece - Visual inspection
7.2 Sampling for tests of mechanical properties
7.2.1 For the steel bar with a diameter of not more than 40 mm, it shall retain
the rolled surface of the steel bar. The tensile test shall be carried out without
machining. When the testing machine is not capable enough, the sample is
allowed to be turned. According to the provisions of GB/T 2975, cut the impact
sample.
7.2.2 For the steel bar with a diameter greater than 40 mm, at the positions
shown in Figure 1 and Figure 2, cut the tensile and impact samples.
......
GB/T 18669-2002
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.70
H 44
Steel bars for ship anchor chain
Replaced
ISSUED ON. MARCH 10, 2002
IMPLEMENTED ON. JULY 1, 2002
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China
Table of Contents
Foreword ... 3
1 Scope .. 4
2 Reference Standards ... 4
3 Ordering content .. 6
4 Designation ... 6
5 Dimensions, shape, mass and allowable deviation ... 6
6 Technical requirements ... 8
7 Test Method ... 10
8 Inspection rules .. 11
9 Packaging, mark and quality certificate ... 12
Foreword
This standard is formulated on the basis of YB/T 897-1985 “Steel bars for electric welded
anchor - Specification” and in combination with the production and use condition of the
steel bars for anchor chain in China. Wherein, the chemical composition and mechanical
properties are consistent with the uniform requirements of IACS (International Association
of Classification Societies) AND the specifications of CCS (China Classification Society).
This Standard modifies the following technical contents on the basis of YB/T 897-1985.
- Set the Standard name as “Steel bars for ship anchor chain”;
- Set the designation as “CM370, CM490 and CM690”;
- Cancel the grading provisions of grade-1, grade-2 and grade-3 anchor chain;
- Modify the mass fraction of CM370 silicon into 0.15% ~ 0.35%; modify the mass
fraction of CM490 and CM690 silicon into 0.15% ~ 0.55%; modify the upper limit of
the mass fraction of CM490, CM690 phosphorus, and sulfur into 0.035%;
- Stipulate the method of adding the elements of V, Ti and Nb in the steel and the lower
limit of the content.
- With reference to the uniform requirements of the current IACS (International
Association of Classification Societies), adjust the dimensional deviation on the basis
of the YB/T 897.
From the date of the implementation of this Standard, the YB/T 897-1985 “Steel bars for
electric welded anchor - Specification” shall be invalid.
This Standard was proposed by the previous State Bureau of Metallurgical Industry.
This Standard shall be under the jurisdiction of Technical Committee on Steel of
Standardization Committee of China.
Main drafting organizations of this Standard. Chongqing Iron & Steel (Group) Co., Ltd.;
Shanghai Fifth Iron & Steel (Group) Co., Ltd.; China Metallurgical Information and
Standardization Institute.
Main drafters of this Standard. Su Yan, Zeng Jintao, Guo Yan, Liu Zeyan, Shen Jianchang
and Li Guozhong.
Steel bars for ship anchor chain
1 Scope
This Standard specifies the size, shape, mass and allowable deviation, technical
requirements, test methods, inspection rules and packaging marks, and quality certificates
of the hot-rolled steel bars for ship anchor chain.
This Standard is applicable to the steel bars for anchor chain (hereinafter referred to as
steel bars) whose diameter is 13.0mm ~ 190.0mm.
2 Reference Standards
The following standards contain the provisions which, through reference in this
Standard, constitute the provisions of this Standard. At the time of publication, the
editions indicated are valid. All standards are subject to revision. The parties who are
using this Standard shall explore the possibility of using the latest version of the
following standards.
GB/T 222-1984 Method of sampling steel for determination of chemical composition
and permissible variations for product analysis
GB/T 223.3-1988 Methods for chemical analysis of iron, steel and alloy - The
diantipyrylmethane phosphomolybdate gravimetric method for the determination of
phosphorus content
GB/T 223.5-1997 Methods for chemical analysis of iron, steel and alloy - The
reduced molybdosilicate spectrophotometric method for the determination of acid-
soluble silicon content
GB/T 223.10-2000 Methods for chemical analysis of iron, steel and alloy - The
cupferron separation-chrome azurol S photometric method for the determination of
aluminum content
GB/T 223.11-1991 Methods for chemical analysis of iron, steel and alloy -
ammonium sulfate oxidation volumetric method for the determination of chromium
content
GB/T 223.14-2000 Methods for chemical analysis of iron, steel and alloy - The N-
Benzoyl-N-phenylhydroxylamine extraction photometric method for the
determination of vanadium content
GB/T 223.16-1991 Methods for chemical analysis of iron, steel and alloy - The
chromotropic acid photometric method for the determination of titanium content
GB/T 223.18-1994 Methods for chemical analysis of iron, steel and alloy - The
sodium thiosulfate separation iodimetric method for the determination of copper
content
GB/T 223.24-1994 Methods for chemical analysis of iron, steel and alloy - The
extraction separation - The dimethylglyoxime spectrophotometric method for the
determination of nickel content
GB/T 223.63-1988 Methods for chemical analysis of iron, steel and alloy - The
sodium (potassium) periodate photometric method for the determination of
manganese content
GB/T 223.64-1988 Methods for chemical analysis of iron, steel and alloy - The flame
atomic absorption spectrometric method for the determination of manganese
content
GB/T 223.68-1997 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 223.71-1997 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 223.74-1997 Methods for chemical analysis of iron, steel and alloy - The
combustion gravimetric/gas-volumetric method for the determination of combined
carbon content
GB/T 22-1987 Metallic materials - Tensile testing at ambient temperature
GB/T 229-1994 Charpy notch impact test
GB/T 232-1999 Metallic materials - Bend test
GB/T 2101-1989 General provisions on acceptance, package, marking and quality
certificate for profile 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 17505-1998 Steel and steel products - General technical delivery
requirements
8.2.3 For CM690 steel bar for anchor chain, it does not allow the mix batches.
8.3 Re-inspection and determination
The re-inspection and determination rules of steel bar’s inspection items shall comply with
the provisions of 8.3.4.3 of GB/T 17505-1998.
9 Packaging, mark and quality certificate
The packaging, mark and quality certificate of steel bar shall comply with the provisions of
GB/T 2101.
......
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