طلبات معدات ولوازم البحرية / المابيا

forged rudder stocks (size abt. diameter 400mm, length abt. 6000mm. Material [11:07] Helge Schmale forged alloy steel acc. to BV rules NR216,Ch 2, Sec 3. ReH: > 420 N/mm² Rm: > 600 N/mm² carbon contents: < 0,23%