... 1m and 5m 4,min dia over 150mm 1,main shaft forging2,80kg-5t3,length no more than 5m4,mim dia ... %.8,we usualy use material of steel type of 15#,20#,25#,30#.35#,40#,45#,46#,etc.according to customers ... industries,mould,shipping,transportation,agriculture,pipeline,metallurgy,GI,ETC forged shaft