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GB/T 32248-2015 English PDF

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GB/T 32248-2015: Superstrength alloy steel forgings -- General specifications
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PDF similar to GB/T 32248-2015


Standard similar to GB/T 32248-2015

GB/T 33083   GB/T 33084   GB/T 33201   GB/T 32249   GB/T 32246   

Basic data

Standard ID GB/T 32248-2015 (GB/T32248-2015)
Description (Translated English) Superstrength alloy steel forgings -- General specifications
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J32
Classification of International Standard 77.140.85
Word Count Estimation 15,157
Date of Issue 2015-12-10
Date of Implementation 2016-07-01
Quoted Standard GB/T 6394; ASTM A255; ASTM A275/275M; ASTM A370-2012; ASTM A388/388M; ASTM A788/A788M-2013; ASTM E3; ASTM E21; ASTM E45; ASTM E165
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 yield strength greater than 965 MPa ultra high strength alloy steel forgings (hereinafter referred to as "forging") ordering the content, materials and manufacturing methods, chemical composition requirements, mechanical properties, nondestructive inspection requirements, rework and product identification. This standard applies to ultra-high-strength alloy steel forgings. This standard is not suitable for use in the case of restrictions by creep deformation.

GB/T 32248-2015: Superstrength alloy steel forgings -- General specifications

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Superstrength alloy steel forgings - General specifications ICS 77.140.85 J32 National Standards of People's Republic of China Alloy Steel Forgings General technical conditions 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

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 1 order contents and general requirements Materials and manufacturing methods 2 4 5 Chemical composition of claim 5 6 Mechanical Properties 8 7 NDT requirements 8 8 Rework 9 9 9 Product Identification Appendix A (normative) Supplementary requirements 10 Appendix B (normative) Sampling icon 12

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 is drafted by. Forge First Tractor Company Limited, Beijing Institute of Electrical and Guizhou Anda Aviation Forging limited Liability company. The main drafters of this standard. Wang Yunfei, in Yiluo, Zhou Lin, Ruan Yanjing, Chenzu Xiang, Chen Wenjing, high-Hu, Yang Xiaorong, Wei Wei. Alloy Steel Forgings General technical conditions

1 Scope

This standard specifies the yield strength greater than 965MPa ultra high strength alloy steel forgings (hereinafter referred to as "forging") ordering content, materials and Manufacturing methods, chemical composition requirements, mechanical properties, nondestructive inspection requirements, rework and product identification. This standard applies to ultra-high-strength alloy steel forgings. This standard is not suitable for use in the case of restrictions by creep deformation. Note. This standard covers 27 grades, select the desired level of design, based on conditions of use and mechanical properties.

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 6394 Determination of average grain size of metal Hardened Standard Test Method (Standardtestmethodsfordetermininghardena- ASTMA255 determination steel bilityofsteel) Standard Practice ASTMA275/275M magnetic particle inspection of steel forgings (Standardpracticeformagneticparticle examinationofsteelforgings) Standard Test Methods and Definitions for Mechanical Testing of Steel Products ASTMA370-2012 (Standardtestmethodsanddefini- tionsformechanicaltestingofsteelproducts) ASTMA388/388M steel forgings Standard Practice for Ultrasonic Inspection (Standardpracticeforultrasonicexamina- tionofsteelforgings) ASTMA788/A788M-2013 Common Requirements Steel Forgings Standard Specification (Standardspecificationforsteelforg- ings, generalrequirements) ASTME3 metallographic sample preparation Standard Guide (Standardguideforpreparationofmetalographicspecimens) ASTME21 heated metal material tensile test using standard test methods (Standardtestmethodsforelevatedtemper- aturetensiontestsofmetalicmaterials) Standard Test Method for ASTME45 steel impurities (Standardtestmethodsfordeterminingtheinclusion contentofsteel) Standard Test Method ASTME165 liquid penetrant inspection (Standardtestmethodforliquidpenetrateexamina- tion)

3 order contents and general requirements

3.1 In addition to the order information ASTMA788/A788M-2013 are required, the inquiry and orders the demand side should also include forging Detailed drawings and specifications. 3.2 in accordance with this standard provides forgings shall conform ASTMA788/A788M-2013 requirements, including additional ordering information system Building requirements, testing, retesting methods and procedures, identification, certificate, product analysis bias and additional supplements. 3.3 If this standard and ASTMA788/A788M-2013 requirement of conflict, this standard shall prevail.

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