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GB/T 32256-2015: Steel forgings for rings for reduction gears -- General specification
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32256-2015 | English | 189 |
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Steel forgings for rings for reduction gears -- General specification
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GB/T 32256-2015
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Basic data | Standard ID | GB/T 32256-2015 (GB/T32256-2015) | | Description (Translated English) | Steel forgings for rings for reduction gears -- General specification | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J32 | | Classification of International Standard | 77.140.85 | | Word Count Estimation | 9,968 | | Date of Issue | 2015-12-10 | | Date of Implementation | 2016-07-01 | | Quoted Standard | GB/T 8541; ASTM A275/A275M; ASTM A370; ASTM A388/A388M; ASTM A788 | | Regulation (derived from) | National Standard Announcement 2015 No.38 | | 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 reduction gear ring Carbon and Alloy Steel Forgings (hereinafter referred to as "forging") ordering information and general requirements, materials and manufacturing, chemical composition, mechanical properties, quality certification, product identification, rejection, etc. This standard applies to normalized and tempered by quenching and tempering process of deceleration gear ring with, welding carbon steel and alloy steel forgings. | GB/T 32256-2015: Steel forgings for rings for reduction gears -- General specification---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Steel reduction gear ring forgings - General technical requirements)
ICS 77.140.85
J32
National Standards of People's Republic of China
Steel reduction gear ring forgings - General technical requirements
Issued on. 2015-12-10
2016-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
Ordering information and general requirements 4 1
5 materials and manufacturing 1
6 chemical composition 2
7 3 Mechanical Properties
8 quality certificate 5
Product identification 9 5
10 declined 5
Appendix A (normative) Additional requirements 6
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the National Standardization Technical Committee Forging (SAC/TC74) and focal points.
This standard was drafted. Beijing Institute of Electrical and Jiangsu Pacific Precision Forging Technology Co., Ltd., Zhejiang Huangyan Jiangkou Xin Forging Co.
the company.
The main drafters of this standard. Wei Wei, Jin Hong, Tao Liping, Huang Zepei, Luxiu Fu, Lu Xin, Zhou Lin, Chen Wenjing, Zhang Liping.
Steel reduction gear ring forgings - General technical requirements
1 Scope
This standard specifies the reduction gear ring Carbon and Alloy Steel Forgings (hereinafter referred to as "forging") ordering information and general requirements, materials and
Manufacturing, chemical composition, mechanical properties, quality certification, product identification, rejection, etc.
This standard applies to normalized and tempered by quenching and tempering process of deceleration gear ring with, welding carbon steel and alloy steel forgings.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 8541 Forging term (Terminologyofforgingandstamping)
ASTMA275/Standard Practice (A275M magnetic particle inspection of steel forgings Testmethodformagneticparticleex-
aminationofsteelforgings)
Standard Test Methods and Definitions for Mechanical Testing of Steel Products ASTMA370 (Testmethodsanddefinitionsformechan-
icaltestingofsteelproducts)
ASTMA388/A388M steel forgings Standard Practice for Ultrasonic Inspection (Practiceforultrasonicexaminationof
heavysteelforgings)
ASTMA788 Steel Forgings Standard Specification for General Requirements (Specificationforsteelforgings, generalrequire-
ments)
3 Terms and Definitions
Terms and definitions GB/T 8541 defined apply to this document.
4 ordering information and general requirements
4.1 Ordering information should be required ASTMA788 implementation. In addition, the acquirer shall be specified in the order required by the contract and sub-grade material
Class and the necessary additional requirements, see Appendix A.
4.2 standard material used shall comply with the provisions of ASTMA788.
5 materials and manufacturing
5.1 Melting
Smelting process should be consistent with the provisions of ASTMA788, wherein the vacuum degassing process shall comply with the provisions of Appendix A of A.7.
5.2 raffinate
Should be fully clean up residue, in order to ensure the smooth flow of ingot casting process and avoid segregation.
5.3 Forging
Thermodynamic properties of forgings shall comply with the requirements of ASTMA788.
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