Casting 0.2% C ,12% Mn steel
Casting 0.2% C ,12% Mn steel
(OP)
I shall be thankful if I could be given more information on a 0.2% C, 12% Mn steel. A bell casting for hopper is to be processed in this alloy. There is machining involved in the seating area and also a centre bore which needs grinding finish. The standard mentioned is a Chinese one and is incomplete(ZGMnSi) is all that it mentions.





RE: Casting 0.2% C ,12% Mn steel
dear friend,
the composition is similar to high manganese steel also known as hadfield steel. It has a good wear resistance, owning its property for the work hardening tendency it has in abundance. but this material is virtually unmachineable, because as the tool digs in the material bercomes harder and further becomes difficult and finish bad. it also has damaging effect on the tool too. grinding is the standard operation on such material.
wonder what is the intended end use is.
regards,
MRCN
RE: Casting 0.2% C ,12% Mn steel
The machinability increases with Mn content at the expense of the work hardenability. As this is the prime reason to choose Mn-steel, this normally is not an option.
RE: Casting 0.2% C ,12% Mn steel
RE: Casting 0.2% C ,12% Mn steel
RE: Casting 0.2% C ,12% Mn steel
Can you give an idea of the thickness/complexity of the casting?
RE: Casting 0.2% C ,12% Mn steel
The casting is conical in shape like a bell The large dia is 675 mm and the small dia 250mm with the straight height being 900mm. The wall thickness varies from 40 mm to 20 mm at the edge.The casting is split into two halves and later the two halves are bolted.
Thanks for the interest shown in my problem.