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GB/T 18669-2002 PDF in English


GB/T 18669-2002 (GB/T18669-2002, GBT 18669-2002, GBT18669-2002)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
GB/T 18669-2002English120 Add to Cart 0-9 seconds. Auto-delivery. Steel bars for ship anchor chain Obsolete
GB/T 18669-2012English70 Add to Cart 0-9 seconds. Auto-delivery. Steel bars for ship anchor chain Valid
Newer version: GB/T 18669-2012
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GB/T 18669-2002: PDF in English (GBT 18669-2002)

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.
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.