Chinese Journal of Mechanical Engineering

Table 1 Material composition of the specimens (%)

From: Tribological Properties of Cylinder Block/Valve Plate Interface of Axial Piston Pump on the Tribometer

Composition	C	Si	Mn	Al	P	Cr	S	Ni	Mo
38CrMoAl	0.35–0.42	0.20–0.45	0.30–0.60	0.70–1.10	≤ 0.035	1.35–1.65	≤ 0.035	≤ 0.030	0.15–0.25
42CrMo	0.38–0.45	0.17–0.37	0.50–0.80	–	≤ 0.035	0.90–1.20	≤ 0.035	≤ 0.030	0.15–0.25

Composition	Cu	Sn	Pb	Ni	Zn	Other
CuPb15Sn5	Margin	4.0–6.0	14.0–16.8	1.0–2.0	< 0.05	< 1.0
Result	Margin	4.6	15.36	1.37	< 0.03	< 1.0

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