GB/T 32248-2015Superstrength alloy steel forgings—General specifications (English PDF)
超高强度合金钢锻件 通用技术条件
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 10, 2015
Implementation date
July 1, 2016
Scope
GB/T 32248-2015 is the English-translated version of 超高强度合金钢锻件 通用技术条件.
GB/T 32248-2015 is the Chinese standard "Superstrength alloy steel forgings—General specifications".
Its scope clause reads: 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. Its clauses include order contents and general requirements.
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Document preview — GB/T 32248-2015
National Standard of the People's Republic of China
- ICS
- 77.140.85
- Classification
- J 32
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 1 order contents and general requirements
- 5 Chemical composition of claim
- 6 Mechanical Properties
- 7 NDT requirements
- 8 Rework
- 9 Product Identification
- Appendix A (normative) Supplementary requirements
- Appendix B (normative) Sampling icon
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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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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