I'm sorry, but the grade designation G48 is not familiar to me.

It does not show in any of my utilities

My guess is that selekt means heat selection basis t obtain that exact chemistry range as the full range for whatever G48 might be may be say .38-.50 or similar.

If you can get more facts about the steel grade or a werkstoffe number their are several of us who can assist.

milo

I agree with Milo.

I know URSUS is a trademark of old Polish tractors, so perhaps G48 is an old Polish standard designation. But now, Poland is adopting EN standards, so it's difficult to find old designations.

Anyway, regarding the "C% (0.4-0.48)" and the apparent application (transmission axle) I think must be a medium carbon steel (C45) which has been used for such applications. But just the chemical composition isn't enough to properly define the material: It's needed the heat treatment status which may result in different mechanical properties and consequently, different mechanical behaviour.

As you say: Please help us... to help you with a little more information.

I don't know why my previous comment haven't been seen.

Ursus has its site: http://www.ursus.com.pl/en/index_en.html

You may ask them personally and directly.

Other way: I can ask them if you want me to do so. I'm a Polish man.

---best,czes

mrall,

Thanks for that site.

If you could get the grade information for our poster, that would be excellent. I was not able to find it there.

Best regards.

milo

Can you supply more informations about the model, production year, serial number etc? It'd help in searchings, I think.

You may use my email: mrtech(=>)cb.pl

---best,czes

Sorry, I've just noticed, you're not the thread creator.

The original post says: we are planning to product URSUS Axle Shaft, but the material specified is G48 selekt C% (0.4-0.48), we are in confusion what it means.

So, I don't think URSUS itself gives the information on how to produce spare parts for its tractors. Surely they prefer to sell the axle.

Even in the case some information is given, in this case I suppose our guest get the information from some URSUS paper "G48 selekt C% (0.4-0.48)", the question is still here: What means G48? This is not an EN designation and Poland is adopting EN standards as most European Community countries.

I still think for that service must be a carbon steel (C45) but heat treatment status is unknown, surely it's quenched and tempered but... tempering temperature?

If the original poster have one of this axles, by microscopic examination and hardness measurement can have a better idea on it.

Best regards.