GB/T 25746-2010 English PDFUS$329.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25746-2010: Metallographic test for malleable cast iron Status: Valid
Basic dataStandard ID: GB/T 25746-2010 (GB/T25746-2010)Description (Translated English): Metallographic test for malleable cast iron Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J31 Classification of International Standard: 77.040.10 Word Count Estimation: 14,122 Date of Issue: 2010-12-23 Date of Implementation: 2011-06-01 Quoted Standard: GB/T 13298 Regulation (derived from): National Standard Approval Announcement 2010 No.10 (Total No.165) 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 method of assessment under microscope malleable iron microstructure. This standard malleable iron graphite shape, graphite shape classification, graphite distribution, graphite particles number, pearlite shape, pearlite residual amount grading, residual amount of cementite grading, makes provision for the thickness of the epidermis assessment methods, and lists corresponding rating chart. This standard applies to assessment of malleable iron metallurgical microstructure. GB/T 25746-2010: Metallographic test for malleable cast iron---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.Metallographic test for malleable cast iron ICS 77.040.10 J31 National Standards of People's Republic of China Malleable cast iron metallography Issued on. 2010-12-23 2011-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard by the National Standardization Technical Committee Cast (SAC/TC54) and focal points. This standard is mainly drafted by. Jinan Mei Tak Casting Co., Ltd., Hebei Jianzhi Casting Group Co., Ltd., Jiangxi Ma Industry Co., Secretary, Xixia County internal combustion engine into the exhaust pipe limited liability company. The main drafters of this standard. Zanggui Ming, Wang Ruichang, Guolin, Bo Yang Gang, any long red, Jaap born in Sun Yun month, Zhao Xinwu. Malleable cast iron metallography1 ScopeThis standard specifies the method for assessment under microscope malleable iron microstructure. The standard form of graphite, graphite shape malleable iron grade, distribution of graphite, graphite particles number, shape pearlite, pearlite residual amount of points Level, the amount of residual cementite grading, regulates skin thickness evaluation method, and lists the corresponding rating FIG. This standard applies to the assessment of malleable iron metallurgical microstructure.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 13298 metal microstructure inspection method Figure 3 test items and ratings 3.1 Classification and characteristics of graphite shape 3.1.1 Observation of graphite shape shall be made on not etched metallographic sample. 100 times magnification. 3.1.2 There are different shapes, such as graphite, graphite should observe the estimated percentage of each shape in the same sample, and in turn indicated in the report. 3.1.3 five types of graphite shape of the distribution points, see Table 1 and Figures 1 to 5. Table 1 Classification and characteristics of graphite shape Name Drawing No. features Figure 1 spherical graphite denser, approximately circular shape, perimeter irregularities Flocculent cotton group similar to Figure 2, more irregular shape Figure 3 flocculent relatively loose group flocculent graphite Poly worm-like graphite loose FIG. 4, a worm-like graphite gathered together Figure 5 is composed of a lot of dendrites small clip-like, point-like graphite aggregate dendritic distribution Figure 1 100 × 2 100 × FIG. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25746-2010_English be delivered?Answer: Upon your order, we will start to translate GB/T 25746-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 25746-2010_English with my colleagues?Answer: Yes. 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