· The shell of the mill must be made of welded steel plate elements with the following mechanical characteristics :3 t; v7 t( e7 d" k
) @. f1 p/ q6 V1 u
Rm ³ 360 MPa. - r9 P3 _9 D5 Q0 V" XRe ³ 225 MPa. 3 A) ]: Q. G+ O% G1 N1 o6 wA% > 22.- t0 F! Z& u, G; b
. ^, |6 B1 q: `4 aFor example, the steels that respect these values are as follows : . O$ f3 |. L/ ^6 F! i: l/ N- ~4 E 4 Y+ l9 N% h; W v* s* z- WStE 255 : DIN 17 102 Mat 1.0462$ s8 T# \4 |+ `; L- r7 G: q a
- A42CP or P265 GH : EN 10028-2 (92)7 H4 G. V( F( O4 s8 ]' C5 f
- H II : DIN 17 155 Mat 1.0425