GB/T 32959-2016High-Carbon Chromium Bearing Steel for Large Forged Bars (English PDF)

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

This Standard was proposed by China Iron and Steel Industry Association.

This Standard shall be under the jurisdiction of National Technical Committee for

Standardization of Steel (SAC/TC 183).

Drafting organizations of this Standard. Dongbei Special Steel Group Beiman Special

Steel Co., Ltd., China Metallurgical Information and Standardization Institute,

Wafangdian Bearing Company Limited, and Central Iron and Steel Research Institute.

Chief drafting staffs of this Standard. Qian Chengyun, Yan Chengming, Zhou Yantian,

and Yu Feng.

High-Carbon Chromium Bearing Steel for Large

Forged Bars

1 Scope

This Standard specifies the booking contents, dimension, shape, weight, technical

requirements, test methods, inspection rules, as well as package, marks and quality

certificate of the high-carbon chromium bearing steel for large forged bars.

This Standard is applicable to high-carbon chromium bearing steel for forged bars

(hereinafter referred to as steel) with nominal diameter of 400mm ~ 1000mm, and used

for producing the bearing ring.

2 Normative References

The following documents are essential to the application of this document. For the

dated documents, only the versions with the dates indicated are applicable to this

document; for the undated documents, only the latest version (including all the

amendments) are applicable to this document.

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 - Chrom

Azurol S Photometric Method

GB/T 223.11 Iron, Steel and Alloy - Determination of Chromium Content - Visual

Titration or Potentiometric Titration Method

GB/T 223.23 Iron, Steel and Alloy - Determination of Nickel Content - The

Dimethylglyoxime Spectrophotometric Method

GB/T 223.26 Iron, Steel and Alloy - Determination of Molybdenum Content - The

Thiocyanate Spectrophotometric Method

GB/T 223.29 Iron Steel and Alloy - Determination of Lead Content - Carrier

Precipitation-Xylenol Orange Spectrophotometric Method

GB/T 223.31 Iron Steel and Alloy - Determination of Arsenic Content -Distillation-

Molybdenum Blue Spectrophotometric Method

GB/T 223.47 Method 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 223.62 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 Manganese

Content

GB/T 223.77 Methods for Chemical Analysis of Iron, Steel and Alloy - the Flame

Atomic Absorption Spectrometric Method for the Determination of Calcium

Content

GB/T 223.82 Steel and Iron - Determination of Hydrogen Content - Inert Gas

Impulse Fusion Heat Conductivity Method

GB/T 223.84 Steel, Iron and Alloy - Determination of Titanium Content -

Diantipyrylmethane Spectrophotometric Method

GB/T 223.85 Steel, Iron and Alloy - Determination of Sulfur Content - Infrared

Absorption Method after Combustion in an Induction Furnace

GB/T 223.86 Steel, Iron and Alloy - Determination of Total Carbon Content -

Infrared Absorption Method after Combustion in an Induction Furnace

GB/T 224-2008 Determination of Depth of Decarburization of Steels

GB/T 226 Test Method for Macrostructure and Defect of Steel by Etching

GB/T 231.1 Metallic Materials - Brinell Hardness Test - Part 1. Test Method

GB/T 1979 Standard Diagrams for Macrostructure and Defect of Structural Steels

GB/T 4336 Carbon and Low-Alloy Steel - Determination of Multi-Element Contents

-Spark Discharge Atomic Emission Spectrometric Method (Routine Method)

GB/T 6402 Steel Forgings - Method for Ultrasonic Testing

allowed to exist.

6 Test Methods

8 Package, Mark and Quality Certificate

The package, mark and quality certificate of steel shall conform to the provisions of

Chapter 9 in GB/T 18254-2016.

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