SWF 10.054 Equivalent to?

[SeasonLee]

Hello All:
Does anyone who know what this material is as shown below, what is the equivalent code in AISI or SAE?

Thanks for the assists

Season

 

[RolMec]

This is an internal material spec. of SWF Krantechnik, don't think content is disclosed somewhere, openly. Why not contact the OEM (no rel.)?

http://www.swfkrantechnik.com/en/about-us/welcome-to-swf.html

Regards
R.

Roland Heilmann
Lpz FRG