Q450 Q450C - GB /T 34560.2-2017 - H2ABC

中文版

Grade	Q450
Other Names
Corresponding Standard	GB /T 34560.2-2017 Structural Steels - Part 2: Technical Delivery Conditions for Structrual Steels for General Purposes
Classification	Carbon Steel

Q450 Chemical Element Composition Content (%)

	Component	C ^①	Si	Mn	P	S ^{③ ④}	Cr	Ni ^②	Cu ^②	N	Ti	V	Nb
厚度≤40mm	Minimum Value	-	-	-	-	-	-	-	-	-	-	-	-
厚度≤40mm	Maximum Value	0.2	0.55	1.7	0.03	0.03	0.3	0.3	0.3	0.25	0.05	0.13	0.05

Q450 Mechanical Properties

thickness(or diameter) t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤16	550~720	≥450	≥17
16<t≤40	550~720	≥430	≥17
40<t≤63	550~720	≥410	≥17
63<t≤80	550~720	≥390	≥17
80<t≤100	550~720	≥380	≥17
100<t≤150	530~700	≥380	≥17

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