TB/T 2254-1991 English PDF

US$439.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
TB/T 2254-1991: Metallographic Inspection Standard for Carburizing and Hardening Gears of Locomotive Traction
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
TB/T 2254-1991	439	Add to Cart	3 days	Metallographic Inspection Standard for Carburizing and Hardening Gears of Locomotive Traction	Obsolete

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Basic data

Standard ID: TB/T 2254-1991 (TB/T2254-1991)
Description (Translated English): Metallographic Inspection Standard for Carburizing and Hardening Gears of Locomotive Traction
Sector / Industry: Railway & Train Industry Standard (Recommended)
Classification of Chinese Standard: S39
Word Count Estimation: 11,177
Date of Issue: 5/6/1992
Date of Implementation: 10/1/1992
Summary: This standard specifies the organization gear carburized hardened layer of the heart tissue. Within the allowable range and the surface oxide layer decarburization and their classification map and testing, inspection methods. This standard applies to 20CrMnMo, 20CrMnTi, 15CrNi6 such as steel locomotive traction carburizing hardened tooth microstructure examination.

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