Influence of Microalloying Element on the Microstructure and Mechanical Properties of 34CrNiMo6 Steel for Wind Turbine Main Shaft

Table 2

The contents of H, O, and N in 34CrNiMo6 steel.

No.	H (ppm)	O (ppm)	N (ppm)	Al (wt.%)	Al/N
1	1.5	18	67	0	—
2	1.6	19	70	0.016	2.2
3	1.5	20	69	0.02	2.8
4	1.5	20	70	0.025	3.6
5	1.7	19	66	0.027	4.1