Q390NC - GB /T 1591-2018 - H2ABC

中文版

Grade	Q390NC
Corresponding Standard	GB /T 1591-2018 High Strength Low Alloy Structural Steels
Classification	Alloy Steel

Q390NC Chemical Element Composition Content (%)

Component	C	Si	Mn	P ^①	S ^①	Cr	Ni	Cu	Mo	N	Ti ^②	V	Nb	Al ^③
Minimum Value	-	-	0.9	-	-	-	-	-	-	-	0.006	0.01	0.01	0.015
Maximum Value	0.2	0.5	1.7	0.03	0.03	0.3	0.5	0.4	0.1	0.015	0.05	0.2	0.05	-

Q390NC Mechanical Properties

condition	Test Temperature	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Long products and flat materials; t≤16		490~650	≥390	≥20
Long products and flat materials; 16<t≤40		490~650	≥380	≥20
Long products and flat materials; 40<t≤63		490~650	≥360	≥20
Long and flat products; 63<t≤80		490~650	≥340	≥19
Long and flat products; 80<t≤100		490~650	≥340	≥19
Long products and flat products; 100<t≤150		470~620	≥320	≥19
Long and flat products; 150<t≤200		470~620	≥310	≥19
Long and flat products; 200<t≤250		470~620	≥300	≥19
Long products and flat products; longitudinal					≥34
Long products and flat products; transverse					≥27

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