GB/T 33161-2016Carburizing steels for automobile bearings (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Application Scope

This Standard specifies the classification and codes, ordering content, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certification of carburizing steels for automobile bearings.

This Standard applies to carburizing steels for automobile bearings of nominal diameter 4.5 mm ~ 120 mm (hereinafter referred to as steels).

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to this Standard.

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 223.19, Methods for Chemical Analysis of Iron Steel and Alloy - The Neocuproine-chloroform Extraction Photometric Method for the Determination of Copper Content

GB/T 223.26, 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 Separation-Molybdenum Blue Spectrophotometric Method

GB/T 223.47, Methods for Chemical Analysis of Iron, Steel and Alloy - The Carrier Precipitation-Molybdenum Blue Potometric 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 223.54, Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrophotometric Method for the Determination of Nickel Content

GB/T 223.59, Iron, Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method

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 223.67, Iron, Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method

GB/T 223.71, 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 223.77, Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrometric Method for the Determination of Calcium Content

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

GB/T 224, Determination of Depth of Decarburization of Steels

GB/T 225, Steel - Hardenability Test by End Quenching (Jominy Test)

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

GB/T 228.1, Metallic Materials - Tensile Testing - Part 1. Method of Test at Room Temperature

GB/T 229, Metallic Materials - Charpy Pendulum Impact Test Method

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

GB/T 702-2008, Hot-rolled Steel Bars - Dimensions, Shape, Weight and Tolerances

GB/T 905-1994, Dimension, Shape, Weight and Tolerance for Cold-drawn Round, Square and Hexagonal Steels

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

GB/T 2101, General Requirements for Acceptance, Packaging, Marking and Certification for Section Steel acceptance as specified in this Standard.

8 Inspection Rules

8.1.2 The purchaser can dispatch inspection personnel to the supplier at any time, if necessary. The supplier shall provide necessary facilities for the inspection personnel of the purchaser to ensure steels confirmed for delivery conform to the requirements of this Standard. The inspection personnel of the purchaser shall not disturb the production and operation of the supplier for no reason.