JB/T 8420-2008 English PDF

US$739.00 · In stock
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JB/T 8420-2008: Microstructure grading of hat die steel

JB/T 8420: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JB/T 8420-2008	739	Add to Cart	4 days	Microstructure grading of hat die steel
JB/T 8420-1996	799	Add to Cart	5 days	Loose Plate Steel Pipe Flanges with Welding Neck Collar with Male and Female face	Obsolete

Similar standards

GB/T 39252   JB/T 13023   JB/T 9204   JB/T 12266   JB/T 12267   JB/T 12265   

Basic data

Standard ID: JB/T 8420-2008 (JB/T8420-2008)
Description (Translated English): Microstructure grading of hat die steel
Sector / Industry: Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard: J39
Classification of International Standard: 25.200
Word Count Estimation: 21,262
Date of Issue: 2008-06-04
Date of Implementation: 2008-11-01
Older Standard (superseded by this standard): JB/T 8420-1996
Quoted Standard: GB/T 1299; GB/T 6394; GB/T 11880; GB/T 13298
Regulation (derived from): NDRC Notice No. 38 of 2008
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the common hot work die steel martensite and grain size evaluation method and evaluation level. This standard applies to 5CrNiMo, 5Cr4W5Mo2V, 3Cr2W8V, 3Cr3Mo3W2V, 4Cr5MoSiV and 4Cr3Mo2NiVNbB steel and similar manufacturing forging steel, machine forging, hot extrusion, hot stamping and die-casting microstructure rating.

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