Grade R33 - ISO 3305-1985

Grade	Grade R33
Corresponding Standard	ISO 3305-1985 Plain End Welded Precision Steel Tubes – Technical Conditions for Delivery
Classification	Carbon Steel

Grade R33 Chemical Element Composition Content (%)

Component	C ^*	Mn	P	S
Minimum Value	-	-	-	-
Maximum Value	0.16	0.7	0.05	0.05

Grade R33 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	≥420		≥6
Steel tube	BKW	≥370		≥10
Steel tube	GBK+GZF	≥320		≥27
Steel tube	NBK+NZF	≥320	ReH ≥195	≥25

GradeR33 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"!