Determination of the Mechanical Properties of Friction Welded Tube Yoke and Tube Joint

Table 1

Chemical composition and mechanical properties of base material (% weight).

	C	Si	Mn	P	S	V	Al	Tensile strength (MPa)
Nonalloyed structural steel [31]	0.22	0.55	1.60	0.025	0.025	—	0.02	640
Microalloyed steel	0.32	0.15	1.30	—	0.08	0.02	—	750
	0.39	0.25	1.50	0.04	0.13	0.2

Max, Min.