Grade R50 - ISO 3305-1985

Grade	Grade R50
Corresponding Standard	ISO 3305-1985 Plain End Welded Precision Steel Tubes – Technical Conditions for Delivery
Classification	Carbon Steel

Grade R50 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	-	-	-	-	-
Maximum Value	0.23	0.55	1.6	0.05	0.05

Grade R50 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %
Steel tube	BK	≥600		≥4
Steel tube	BKW	≥550		≥7
Steel tube	GBK+GZF	≥480		≥23
Steel tube	NBK+NZF	≥490	ReH ≥285	≥21

GradeR50 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!