P355M - ISO 9328-5-2018

Grade	P355M
Corresponding Standard	ISO 9328-5-2018 Steel Flat Products for Pressure Purposes - Weldable Fine Grain Steels, Thermomechanically Rolled
Classification	Alloy Steel

P355M Chemical Element Composition Content (%)

Component	C ^①	Si	Mn ^①	P	S	Ni	Mo	N	Ti	V	Nb ^③	Al ^②	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	0.02	Cr+Cu+Mo≤0.60；V+Nb+Ti≤0.15
Maximum Value	0.14	0.5	1.6	0.025	0.01	0.5	0.2	0.015	0.05	0.1	0.05	-	Cr+Cu+Mo≤0.60；V+Nb+Ti≤0.15

P355M Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t ≤ 16	450~610	≥355	≥22
16＜t ≤ 40	450~610	≥355	≥22
40＜t ≤ 63	450~610	≥345	≥22

Approximate Comparison Table Pressure-Bearing Flat Steel

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
P355M	P355M	1.8821

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