... Length:3 or 4 meter or as request SCM440 Forging Shaft SCM440 Steel Grade: AISI1020,AISI1040,AISI1045,AISI1050, CK15,C22,C45 ... better under annealing state;Non Metallic Inclusion:ASTM E45 A/B/C/D heavy ≤2, thin ≤2.5Test:SEP1921 CLASS C ... Note:Forged tube, forged square, forged shaft, forged alxs,forged wind turbine main shaft,ship shaft and other finishing service can be supplied ...