Purity Effect of High-Strength Steel on Failure Behavior of Automobile Front Axle

Table 1

Chemical composition of 42CrMo steels of Steel A and Steel B (in wt.%).

Material	Chemical composition (wt.%)
	C	S	N	O	H	Si	Mn		Ni	Cu
Steel A	0.390	0.010	0.0039	0.0006	<0.5 ppm	0.21	0.72	0.014	0.046	0.11
Steel B	0.389	0.002	0.0027	0.0005	<0.5 ppm	0.24	0.68	0.014	0.019	0.027
3077 [27]	0.38–0.45	—	—	—	—	0.17–0.37	0.50–0.80	—	—	—
Material	Chemical composition (wt.%)
	Mo	Cr	V	W	Ti	As	Bi	Pb	Sb	Sn
Steel A	0.21	1.06	0.005	<0.005	<0.005	0.0038	0.0026	0.0003	0.0013	0.014
Steel B	0.18	1.07	0.007	<0.005	<0.005	0.0040	0.0021	0.0002	0.0008	0.0036
3077 [27]	0.15–0.25	0.90–1.20	—	—	—	—	—	—	—	—