Steel C45 (UNI 7845-78)
induction tempered 52/55 HRC
on wear parts
  Steel 42CrMo4 (UNI EN 10083-93)
hardened R=110-120 Kg/mmq
induction tempered 52/55 HRC
on wear parts
 
The punches are available in the following lenghts:
500 mm - 1000 mm and sectioned (1100 mm)