P355NH 1.0565 - EN 10028-3-2017

Grade	P355NH
European Standard Steel Grade	1.0565
Corresponding Standard	EN 10028-3-2017 Flat Products Made of Steels for Pressure Purposes - Part 3: Weldable Fine Grain Steels, Normalized
Classification	Alloy Steel

P355NH Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^ⓕ	Mo	N	Ti	V	Nb	Al ^{ⓒ ⓓ}	More
Minimum Value	-	-	1.1	-	-	-	-	-	-	-	-	-	-	0.02	Nb+Ti+V ≤0.12；Cr+Cu+Mo≤0.45
Maximum Value	0.18	0.5	1.7	0.025	0.01	0.3	0.5	0.3	0.08	0.012	0.03	0.1	0.05	-	Nb+Ti+V ≤0.12；Cr+Cu+Mo≤0.45

P355NH Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤16	Normalizing (+N)	490~630	≥355	≥22
16＜t≤40	Normalizing (+N)	490~630	≥345	≥22
40＜t≤60	Normalizing (+N)	490~630	≥335	≥22
60＜t≤100	Normalizing (+N)	470~610	≥315	≥21
100＜t≤150	Normalizing (+N)	460~600	≥305	≥21
150＜t≤250	Normalizing (+N)	450~590	≥295	≥21

1 Approximate Comparison Table Pressure-Bearing Flat Steel

International Organization for Standardization		European Standard
ISO	Numerical Grade	EN	Numerical Grade
P355NH	1.0565	P355NH	1.0565

2 Approximate Comparison Table High-Quality Carbon Structural Steel

3 Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	United States	International Organization for Standardization	European Standard
GB	ASTM	ISO	EN
Q345R GB/T 713.2-2023	SA516 Gr.70 ASME Ⅱ-2-2021	P355GH P355NH ISO 9328-2018	P355GH P355NH EN 10028-2017

4 Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	International Organization for Standardization	European Standard
GB	ISO	EN
Q370R GB/T 713.2-2023	P355NH P355N P355NL1 ISO 9328-2018	P355NH P355N P355NL1 EN 10028-2017

P355NH Corresponding Standards(Same grade name, different standards)

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