Grade R37 - ISO 3306-1985

Grade	Grade R37
Corresponding Standard	ISO 3306-1985 Plain End As-Welded and Sized Precision Steel Tubes – Technical Conditions for Delivery
Classification	Carbon Steel

Grade R37 Chemical Element Composition Content (%)

Component	C ^*	Si	Mn	P	S
Minimum Value	-	-	-	-	-
Maximum Value	0.17	0.35	0.8	0.05	0.05

Grade R37 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	KM	≥400		≥7
Steel tube	GKM+GZF	≥340		≥26
Steel tube	NKM+NZF	≥360	ReH ≥215	≥24

GradeR37 Corresponding Standards(Same grade name, different standards)

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