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GB/T 6394-2017   Metal - Methods for estimating the average grain size (English Version)
Standard No.: GB/T 6394-2017 Status:valid remind me the status change

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Implemented on:2017-11-1 Delivery: via email in 1 business day
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Standard No.: GB/T 6394-2017
English Name: Metal - Methods for estimating the average grain size
Chinese Name: 金属平均晶粒度测定方法
Chinese Classification: H24    Metallographic testing method
Professional Classification: GB    National Standard
ICS Classification: 77.040.99 77.040.99    Other methods of testing of metals 77.040.99
Issued by: AQSIQ,SAC
Issued on: 2017-03-03
Implemented on: 2017-11-1
Status: valid
Superseding:GB/T 6394-2002 Metal - Methods for estimating the average grain size
Language: English
File Format: PDF
Word Count: 16500 words
Price(USD): 140.0
Delivery: via email in 1 business day
1 Scope 1.1 This standard specifies the representation and determination methods for average grain size of metallic structure, including comparison procedure, planimetric procedure and intercept procedure; these methods are applicable to single-phase structure, but they, with specific requirements, may also be applied to determine the average size of a particular type of grain in a multi-phase or multi-constituent specimen. These methods may also be applied to nonmetallic materials with structures having appearances similar to those of the metallic structures shown in the comparison charts. 1.2 This standard is applied to determine the average grain size of specimens with a unimodal distribution (similar to lognormal distribution) of grain areas, diameters or intercept lengths, and is not applicable to the grain size in bimodal distribution. Characterization of duplex grain size is described in GB/T 24177. Test methods for determining individual very coarse grains in a fine grained matrix are described in YB/T 4290. 1.3 This standard deals only with determination of planar grain size. Determination of spatial grain size, that is, measurement of the size of the three-dimensional grains, is beyond the scope of this standard. 1.4 This standard deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability or fitness of purpose of the materials tested. 2 Normative References The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document. GB/T 4335 Determination of Ferrite Grain Size for Cold Rolled Low Carbon Steel Sheets GB/T 13298 Inspection Methods of Microstructure for Metals GB/T 24177 Standard Test Methods for Characterizing Duplex Grain Sizes GB/T 30067 Standard Terminology Relating to Metallography YB/T 4290 Test Methods for Estimating the Largest Grain Observed in a Metallographic Section (ALA Grain Size) 3 Terms and Definitions For the purposes of this document, the terms and definitions defined in GB/T 30067 and the following apply.
Foreword II Introduction IV 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbols 5 Generalities and Application 6 Sampling 7 Specimen Preparation 8 Determination Procedures 9 Specimens with Non-equiaxed Grain Shapes 10 Grain Size of Specimens Containing Two- or Multi-phase Structure 11 Report on Grain Size 12 Precision and Bias Annex A (Normative) Establishing and Outlining Method of Grain Size Annex B (Normative) Statistical Techniques - Calculation for Confidence Interval and Relative Error of Grain Size Determination Results Annex C (Informative) Measurement Foundation of Grain Size
GB/T 6394-2017 is referred in:
*GB/T 4171-2000 Superior atmospheric corrosion resisting structural steel
*JB/T 6012.2-2008 Internal combustion engines-Intake and exhaust valves-Part 2:Metallographic inspections
*GB/T 1222-2007 Spring steels
*TB/T 1979-2014 Atmospheric corrosion resisting steel for railway rolling stock
*GB 13296-2013 Seamless stainless steel tubes for boiler and heat exchanger
*JGJ/T 27-2014 Standard for Test Methods of Welded Joint of Steel Bars
*JB/T 5000.8-2007 Heavy Mechanical General Techniques and Standards - Part 8: Forging
*NB/T 47009-2010(JB/T4727) Low-alloy steel forgings for low temperature pressure equipments
*NB/T 47010-2010(JB/T Stainless and heat-resisting steel forgings for pressure equipments
*NB/T 47010-2010(JB4278) Stainless and heat-resisting steel forgings for pressure equipments
*NB/T 47008-2017 Carbon and alloy steel forgings for pressure equipment
*GB/T 13401-2017 Steel buttwelding pipe fittings—Technical specification
*NB/T 47009-2017 Low-alloy steel forgings for low temperature pressure equipments
*NB/T 47010-2017 Stainless and heat-resisting steel forgings for pressure equipments
*GB 1499.2-2007/XG1-2009 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars, including Amendment 1
*GB/T 3098.22-2009 Mechanical properties of fasteners made of the fine grain non-heat treatment steel—Bolts,screws and studs
*TB/T 3012-2016 Cast steel bolster and side frame for railway freight car
*GB/T 26306-2010 Free-cutting copper alloy rod and bar
*GB/T 34891-2017 Rolling bearings-Parts made from high-carbon chromium bearing steels- Specifications for heat treatment
*GB/T 24593-2018 Welded austenitic stainless steel tubes for boiler and heat exchanger
*TB/T 2817-2018 Wrought steel solid wheel for railway car
*GB/T 34484.1-2017 Heat-treatable steels - Part 1: Non-alloy steels
*JB/T 1265-2014 Rotor and shaft forgings for 25MW to 200MW steam turbines-Technical specification
*GB/T 3078-2019 Quality structural steel cold drawn bars
*GB/T 5099.3-2017 Seamless steel gas cylinders―Part 3:Normalized cylinders
*GB/T 33954-2017 Hot-rolled wire rod for quenched and tempered spring steel wires
*GB/T 26075-2019 Steel bars for sucker rods
*DL/T 439-2006 The technical guide for high-temperature bolt of fossil-fired power plant
*YB/T 5241-2014 Iron-nickel and iron-nickel-cobalt alloys with low expansion
*GB/T 2072-2020 Nickel and nickel alloy strip and foil
*JB/T 2300-2018 Slewing bearings
*GB/T 32957-2016 Hydraulic and pneumatic systems for cold drawn or cold rolled precision seamless steel tubes with internal diameter
*GB 24627-2009 Standard specification for wrought Nickel-Titanium shape memory alloys for medical devices and surgical implants
*GB/T 34484.2-2018 Heat-treatable steels—Part 2:Alloy steels for quenching and tempering
*GB/T 12361-2016 Steel die forgings―General specification
*JB/T 8415-2011 Internal combustion engines — Timing gears — Specifications
*JB/T 1267-2014 Rotor Forgings for 50MW to 200MW Turbine Generators - Technical Specification
*GB/T 13810-2007 Wrought titanium and titanium alloy for surgical implants
*GB/T 16508.2-2022 Shell boilers—Part 2:Materials
*YB/T 5231-2014 Sealed iron-nickel-cobalt alloys with pe rmanent expansion
*GB/T 16508.2-2013 Shell Boilers - Part 2: Material
*GB/T 41857-2022 Sheet metal parts fabricated by fine blanking combined with extrusion process—General specification
*GB/T 12771-2008 Welded stainless steel pipes for liquid delivery
*GB/T 29532-2013 General specification for steel precision hot die forgings
Code of China
Standard
GB/T 6394-2017  Metal - Methods for estimating the average grain size (English Version)
Standard No.GB/T 6394-2017
Statusvalid
LanguageEnglish
File FormatPDF
Word Count16500 words
Price(USD)140.0
Implemented on2017-11-1
Deliveryvia email in 1 business day
Detail of GB/T 6394-2017
Standard No.
GB/T 6394-2017
English Name
Metal - Methods for estimating the average grain size
Chinese Name
金属平均晶粒度测定方法
Chinese Classification
H24
Professional Classification
GB
ICS Classification
Issued by
AQSIQ,SAC
Issued on
2017-03-03
Implemented on
2017-11-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 6394-2002 Metal - Methods for estimating the average grain size
Language
English
File Format
PDF
Word Count
16500 words
Price(USD)
140.0
Keywords
GB/T 6394-2017, GB 6394-2017, GBT 6394-2017, GB/T6394-2017, GB/T 6394, GB/T6394, GB6394-2017, GB 6394, GB6394, GBT6394-2017, GBT 6394, GBT6394
Introduction of GB/T 6394-2017
1 Scope 1.1 This standard specifies the representation and determination methods for average grain size of metallic structure, including comparison procedure, planimetric procedure and intercept procedure; these methods are applicable to single-phase structure, but they, with specific requirements, may also be applied to determine the average size of a particular type of grain in a multi-phase or multi-constituent specimen. These methods may also be applied to nonmetallic materials with structures having appearances similar to those of the metallic structures shown in the comparison charts. 1.2 This standard is applied to determine the average grain size of specimens with a unimodal distribution (similar to lognormal distribution) of grain areas, diameters or intercept lengths, and is not applicable to the grain size in bimodal distribution. Characterization of duplex grain size is described in GB/T 24177. Test methods for determining individual very coarse grains in a fine grained matrix are described in YB/T 4290. 1.3 This standard deals only with determination of planar grain size. Determination of spatial grain size, that is, measurement of the size of the three-dimensional grains, is beyond the scope of this standard. 1.4 This standard deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability or fitness of purpose of the materials tested. 2 Normative References The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document. GB/T 4335 Determination of Ferrite Grain Size for Cold Rolled Low Carbon Steel Sheets GB/T 13298 Inspection Methods of Microstructure for Metals GB/T 24177 Standard Test Methods for Characterizing Duplex Grain Sizes GB/T 30067 Standard Terminology Relating to Metallography YB/T 4290 Test Methods for Estimating the Largest Grain Observed in a Metallographic Section (ALA Grain Size) 3 Terms and Definitions For the purposes of this document, the terms and definitions defined in GB/T 30067 and the following apply.
Contents of GB/T 6394-2017
Foreword II Introduction IV 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbols 5 Generalities and Application 6 Sampling 7 Specimen Preparation 8 Determination Procedures 9 Specimens with Non-equiaxed Grain Shapes 10 Grain Size of Specimens Containing Two- or Multi-phase Structure 11 Report on Grain Size 12 Precision and Bias Annex A (Normative) Establishing and Outlining Method of Grain Size Annex B (Normative) Statistical Techniques - Calculation for Confidence Interval and Relative Error of Grain Size Determination Results Annex C (Informative) Measurement Foundation of Grain Size
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Keywords:
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