GB/T 30834-2014 in English

SUPERSEDED

Standard test methods for rating and classifying inclusions in steel―Scanning Electron Microscope

Issued on:2014-06-24
Implemented on:2015-04-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $270.00
$262.00

Standard No:	GB/T 30834-2014
Document status:	SUPERSEDED
Superseded by:	GB/T 30834-2022 Rating and classifying of inclusions in steel—Scanning electron microscope method
Superseded on:	2023-02-01
Title in English:	Standard test methods for rating and classifying inclusions in steel―Scanning Electron Microscope
Title in Chinese:	钢中非金属夹杂物的评定和统计扫描电镜法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2014-06-24
Implemented on:	2015-04-01
ICS Classification:	77.040.99-Other methods of testing of metals
Chinese Classification:	H24-Metallographic testing method
Professional Classification:	GB-National Standard
Related Keywords:	electron microscope scopethis standard standard test methods electron microscope non-metallic inclusions classifies inclusions
Related Topics:	SEM scanning electron microscope, SEM SEM's SEM and SEM scanning electron microscope scanning electron microscope SEM SEM parameters SEM Leather illegal scanner SEM, Automatic scanning of inclusions SEM Gold Small SEM non-metallic inclusions SEM SEM organic carbon FSEM scanning electron microscope FSEM Various parameters in scanning electron microscopy SEM SEM SEM metal layer SEM scanning electron microscope SEM electron microscopy SEM metal SEM method SEM SEM SEM How many grams of scanning electron microscope SEM sample preparation SEM Inclusion Evaluation SEM table SEM work scanning electron microscope Scanning Electron Microscope and Secondary Element Scanning Electron Microscope Other Electron Microscopes SEM in 1 Inclusion SEM Metal SEM SEM SEM metal sample preparation SEM alignment Carbon SEM Sunny Scanning Electron Microscope Frontiers of SEM Carbon Electron Microscopy SEM gold Scanning Electron Microscopy Various scanning electron microscopes Scanning Electron Microscopy Two Methods Energy Spectroscopy in Scanning Electron Microscopy fast scanning electron microscope single scan SEM Corrosion SEM at SEM peak FSEM g2 SEM Metal SEM sample preparation Electron microscope scanning metal SEM Carbon SEM gold Desktop SEM SEM SEM Selen SEM SEM Description FSEM phase-separated SEM SEM first scan Small SEM Metal scanning sample preparation Scanning Electron Microscopy Determination Method Lithium metal electron microscope SEM alignment Determination method of scanning electron microscope Sunny SEM gold scanning electron microscope Kelvin SEM Inclusions How to scan electron microscope Desktop SEM Non-metallic inclusions Scanning Electron Microscope Electron Microscope Parameters and SEM Environmental SEM SEM Phase + SEM Before SEM How many scanning electron microscopes How to use scanning electron microscope SEM scanning parameters special energy scanning electron microscope Electron microscope scanning parameters Environmental SEM SEM machine Advantages of SEM Series SEM Scanning electron microscope one The current scanning electron microscope Kelvin SEM Inclusion Analysis SEM part SEM Carbon SEM metal surface SEM and Environmental SEM Automated SEM Environmental Electron Microscopy Statistical SEM SEM concentration Environmental Electron Microscopy Consumables for SEM SEM Carbon SEM and Optics SEM The original scanning electron microscope electron microscopy Scanning Electron Microscope Secondary Electron Microscope Sample preparation for environmental scanning electron microscope metal electron microscope SEM generation Electron Microscopy Gold Method SEM Metal SEM sample preparation About SEM parameters SEM future Electron microscope statistics SEM and Environmental SEM SEM f2 SEM metal sample Inside the SEM 1. 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SEM metal sample preparation SEM central africa environmental scanning electron microscope .SEM Electron microscope scanning parameters SEM and SEM SEM Secondary electrons in SEM SEM 3 scanning SEM eye metal inclusionsautomatic Carbon SEM fast scanning electron microscope SEM gold SEM ticks SEM is a bit Field SEM and Environmental SEM SEM inclusions How to Scan Metal Interiors How to scan electron microscope in the scanning electron microscope Scanning Electron Microscope Specialty SEM Leather SEM cobalt Environmental SEM and SEM metal electron microscope Inclusion How to Scan Metal Interiors How to describe electron microscope scanning scanning tube SEM metal Inclusion Statistics Environmental Scanning and SEM SEM gold metal SEM parameters Which SEM Mobile SEM Electron microscope scanning parameters How to align the scanning electron microscope foreign scanning electron microscope The following description of the scanning electron microscope Secondary SEM Organic SEM sweep the substance Scanning Electron Microscope Abroad SEM and Electron Microscope Organic SEM SEM Day Describe SEM Metal UV Scanning metal before SEM SEM Day metal scan SEM SEM Particle Electron Microscopy Leather SEM Energy Spectrum Scanning in Scanning Electron Microscopy Environmental Field SEM The work of the scanning electron microscope SEM below 10 Environmental Field SEM Environmental Field Scanning Electron Microscopy Foreign scanning electron microscope parameters environmental field scanning electron microscope GBT30834 GB/T 30834-2014 GB/T 30834-2022 SEM image SEM porosity scan deposit Scanning electron microscope srm5000 Determination of lithium carbonate by scanning electron microscope The difference between spherical aberration electron microscope and scanning electron microscope Plant tissue scanning electron microscopy tescan scanning electron microscope The difference between field emission scanning electron microscopy and scanning electron microscopy Scanning electron microscope leo 1450 SEM spray paint Application scope of scanning electron microscope The imaging principle of scanning electron microscope What are the signals of scanning electron microscope? 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《GB/T 30834-2014钢中非金属夹杂物的评定和统计扫描电镜法》由TC183（全国钢标准化技术委员会）归口，TC183SC14（全国钢标准化技术委员会金相检验方法分会）执行，主管部门为中国钢铁工业协会。
1.1 本标准介绍了利用扫描电镜(SEM)对钢中非金属夹杂物进行尺寸分布统计、化学分类及评级的程序。扫描电镜配置 X射线能谱分析和自动图像分析功能。
1.2 本标准推荐了三种检验方法。方法一主要依据形态对夹杂物进行分类。方法二主要依据化学组
成对夹杂物进行分类。方法一和二适用于压缩比大于或等于3的轧制或锻制钢材中2μm 以上非金属
夹杂物的显微评定。方法三用来确定某类夹杂物的具体细节,如体积分数、数量分数等体视学参数,适
用于各种铸坯或钢材中所有尺寸(包括2μm 以下)夹杂物的统计分类。
1.3 本标准只是一种推荐的非金属夹杂物检验方法,不对任何钢的验收合格级别进行规定。
1.4 本标准并未说明与应用有关的安全事项。使用者有责任建立正确的安全与健康条例,并在应用本
标准前确定条例规定的适用性。

Scope

This standard introduces the procedures for size distribution statistics, chemical classification and rating of non-metallic inclusions in steel using scanning electron microscopy (SEM). The scanning electron microscope is equipped with X-ray energy spectrum analysis and automatic image analysis functions. This standard recommends three inspection methods. Method 1 mainly classifies inclusions according to their morphology. Method 2 mainly classifies inclusions according to their chemical composition. Methods 1 and 2 are applicable to the microscopic assessment of non-metallic inclusions larger than 2 μm in rolled or forged steels with a compression ratio greater than or equal to 3. Method three is used to determine the specific details of a certain type of inclusions, such as volume fraction, number fraction and other stereological parameters, and is suitable for the statistical classification of inclusions of all sizes (including below 2 μm) in various slabs or steels. This standard is only a recommended inspection method for non-metallic inclusions, and does not specify the acceptance level of any steel. This standard does not address safety issues related to the application. It is the user's responsibility to establish correct safety and health regulations and to determine the applicability of the regulations before applying this standard.

More samples: NB/T 47013.2-2015 QC/T 942-2021 JC/T 2453-2018

Sample only — not a preview of GB/T 30834-2014

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