SKH 9 Tool Steel

[swall]

Does anyone know what material the designation "SKH9" refers to? It is a suggested material for mandrels on a coiling machine we are buying from a Manufacturer in Taiwan.

 

[metengr]

http://www.efunda.com/materials/all...ol.cfm?ID=AISI_M2&prop=all&Page_Title=AISI M2

 

[TVP]

swall,

SKH9 is a proprietary designation from Nachi in Japan for the HSS tool steel grade designated M2 in North America. I am somewhat surprised that the efunda link shows the M2 equivalent as "Japan: JIS SKH9" because the appropriate equivalent is SKH51 according to JIS G 4403. As you already know, it is always best to refer to the exact standard in these types of inquiries, but I have found the following link to be quite helpful for finding tool steel grades, equivalents, etc.:

http://www.misumiusa.com/CategoryImages/Metric_2008_pdf/METRIC2593.pdf

 

[unclesyd]

Here is another good cross reference to JIS Steels. Evidently it doesn't have any proprietary steels.

http://metals.about.com/gi/dynamic/..._620_995_569&f=10&tt=14&bt=1&bts=1&zu=http://

http://www.isteelasia.com/tools/tool552.jsp

 

[swall]

Good information. Thanks to all who replied.