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

Table 1

Chemical composition of 34CrNiMo6 steel.

No.	C	Si	Mn	P	S	Cr	Ni	Mo	Cu	Al
1	0.35	0.25	0.77	0.012	0.002	1.59	1.54	0.25	0.07	0
2	0.36	0.22	0.76	0.006	0.002	1.56	1.55	0.23	0.06	0.016
3	0.35	0.26	0.75	0.005	0.001	1.58	1.55	0.23	0.06	0.02
4	0.35	0.22	0.73	0.011	0.001	1.57	1.54	0.22	0.08	0.025
5	0.36	0.25	0.73	0.008	0.001	1.56	1.53	0.22	0.07	0.027