Q355ME - GB /T 1591-2018

Grade	Q355ME
Corresponding Standard	GB /T 1591-2018 High Strength Low Alloy Structural Steels
Classification	Alloy Steel
Properties	High Strength

Q355ME Chemical Element Composition Content (%)

Component	C ^⑤	Si	Mn	P ^②	S ^②	Cr	Ni	Cu	Mo	N	Ti ^③	V	Nb	Al ^④
Minimum Value	-	-	-	-	-	-	-	-	-	-	0.006	0.01	0.01	0.015
Maximum Value	0.14	0.5	1.6	0.025	0.02	0.3	0.5	0.4	0.1	0.015	0.05	0.1	0.05	-

Q355ME Mechanical Properties

thickness or diameter t mm	Test Temperature	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤16	room temperature	470~630	ReH: ≥355	≥22
16<t≤40		470~630	ReH: ≥345	≥22
40<t≤63		450~610	ReH: ≥335	≥22
63<t≤80		440~600	ReH: ≥325	≥22
80<t≤100		440~600	ReH: ≥325	≥22
100<t≤120ⓐ		430~590	ReH: ≥320	≥22
specimen	20°C				long. ≥63 tr. ≥40
specimen	0°C				long. ≥55 tr. ≥34
specimen	-20°C				long. ≥47 tr. ≥27
specimen	-40°C				long. ≥31* tr. ≥20*

New and Old Grade Replacement List

Approximate Comparison Table High strength low alloy structural steels

China	International Organization for Standardization	European Standard
GB	ISO	EN
Q355ME GB/T 1591-2018	S355ME ISO 630-3-2012	S355ML EN 10025-4-2004

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