GB/T 18254-2002 English PDF (GBT18254-2002)

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GB/T 18254-2002: High-carbon chromium bearing steel
GB/T 18254-2002
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.20
H 40
Replacing GB/T 18254-2000
High-carbon Chromium Bearing Steel
ISSUED ON . MARCH 10, 2002
IMPLEMENTED ON. JULY 01, 2002
Issued by. General Administration of Quality Supervision,
Inspection and Quarantine (AQSIQ) of the People's
Republic of China
Table of Contents
FOREWORD ... 3 
1 SCOPE ... 4 
2 NORMATIVE REFERENCES ... 4 
3 ORDER CONTENTS ... 7 
4 DIMENSION AND SHAPE ... 8 
5 TECHNICAL REQUIREMENTS ... 11 
6 TEST METHODS ... 19 
7 INSPECTION RULES ... 22 
8 MARKING, PACKING AND QUALITY CERTIFICATE ... 24 
APPENDIX A (NORMATIVE) STANDARD DIAGRAMS OF
HIGH-CARBON CHROMIUM BEARING STEEL ... 25 
AMENDMENT 1 ... 50 
Foreword
This Standard is a revision of GB/T 18254-2000 “High-carbon Chromium Bearing
Steel”.
Compared with GB/T 18254-2000, the changes of main technical contents in this
Standard are as follows.
— Provisions on the continuously cast steel were added;
— This Standard was re-drafted according to GB/T 1.1-2000 “Directives for
Standardization-Part 1. Rules for the Structure and Drafting of Standards”.
Appendix A of this Standard is normative.
This Standard was proposed by the State Metallurgical Industry Bureau.
This Standard shall be under the jurisdiction of the National Technical Committee on
Iron and Steel of Standardization Administration of China.
Responsible drafting organizations of this Standard. Baosteel Group Shanghai No.5
Steel Co., Ltd., LuoYang Bearing Research Institute, Metallurgical Industry
Information and Standardization Institute, and Iron and Steel Research Institute.
Chief drafting staffs of this Standard. Shen Jianchang, Lei Jianzhong, Luan Yan,
Wei Guoneng, and Wang Shentian.
Participating drafting organizations of this Standard. Daye Special Steel Group Co.,
Ltd., Beiman Special Steel Co., Ltd., Xining Special Steel (Group) Co., Ltd., and
Dalian Iron and Steel Group Co., Ltd.
Participating drafting staffs of this Standard. Li Zheng, Wang Hongjun, Liu Kelin,
Zhen Juan, and Mei Yali.
This Standard was issued in November 2000 for the first-time.
High-carbon Chromium Bearing Steel
[Translator Note. Text in red indicates the “Amendment 1”]
1 Scope
This Standard specifies the order contents, dimension, shape, technical
requirements, test methods, inspection rules, packaging, marking and quality
certificate of the high-carbon chromium bearing steel.
This Standard is applicable to the hot-rolled or forged round-steels, wire-rods,
cold-drawn (cold-rolled) round-steels (straight-strip or disc-shaped) and steel-pipes
that are made of high-carbon chromium bearing steel and used for manufacturing
bearing ring and rolling body. The continuously cast steel is not recommended to be
adopted as the steel for manufacturing steel balls.
Based on the agreement by both the supplier and the purchaser, steels and
steel-billets of other varieties and specifications may also be supplied; and the
specific requirements shall be indicated in the contract.
2 Normative References
The following standards contain provisions which, through reference in this text,
constitute provisions of this Standard. For dated reference, the subsequent
amendments (excluding corrigendum) or revisions of these publications do not
apply. However, all parties who enter into an agreement according to this Standard
are encouraged to study whether the latest edition of these documents is applicable.
For undated references, the latest edition of the normative document referred to
applies.
GB/T 222 Method of Sampling Steel for Determination of Chemical
Composition and Permissible Variations for Product Analysis
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 223.5 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 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Cupferron Separation - Chrome Azurol S Photometric Method for the
Determination of Aluminium Content
GB/T 223.11 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Ammonium Persulfate Oxidation Volumetric Method for the Determination of
Chromium 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 223.19 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Neocuproine-chloroform Extraction Photometric Method for the Determination of
Copper Content
GB/T 223.23 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Dimethylglyoxime Spectrophotometric Method for the Determination of Nickel
Content
GB/T 223.24 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Extraction Separation - The Dimethylglyoxime Spectrophotometric Method for
the Determination of Nickel Content
GB/T 223.26 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Thiocyanate Direct Photometric Method for the Determination of Molybderum
Content
GB/T 223.27 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Thiocyanate-butyl Acetate Extraction Spectrophotometric Method for the
Determination of Molybdenum Content
GB/T 223.29 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Xylenol Orange Photometric Method for Determination of Lead Content after
Carrier Precipitation
GB/T 223.31 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Distillation-Molybdenum Blue Spectrophotometric Method for the Determination
of Arsenic Content
GB/T 223.47 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Carrier Precipitation - Molybdenum Blue Photometric Method for the
Determination of Antimony Content
GB/T 223.50 Methods for Chemical Analysis of Iron, Steel and Alloy - The
phenylfuorone-CTMAB Direct Photometric Method for the Determination of Tin
Content
GB/T 223.53 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Flame Atomic Absorption Spectrophotometric Method for the Determination of
Copper Content
GB/T 223.54 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Flame Atomic Absorption Spectrophotometric Method for the Determination of
Nickel Content (eqv ISO/DIS 4940)
GB/T 223.58 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Sodium Arsenite-sodium Nitrite Titrimetric Method for the Determination of
Manganese Content
GB/T 223.59 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Reduced Molybdoantimonyl Phosphoric Acid Photometric Method for the
Determination of Phosphorus Content
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 223.61 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Ammonium Phosphomolybdate Volumetric Method for the Determination of
Phosphorus Content
GB/T 223.62 Methods for Chemical Analysis of Iron, Steel and Alloy - The Butyl
Acetate Extraction Photometric Method for the Determination of Phosphorus
Content
GB/T 223.63 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Sodium (Potassium) Periodate Photometric Method for the Determination of
Mang...