P420NH 1.8932 - ISO 9328-3-2018

Grade	P420NH
ISO Numeric Designation	1.8932
Corresponding Standard	ISO 9328-3-2018 Weldable Fine Grain Steels, Normalized
Classification	Alloy Steel

P420NH Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^①	Ni	Cu ^①	Mo ^①	N	Ti	V	Nb	Al ^②	More
Minimum Value	-	-	1.1	-	-	-	-	-	-	-	-	-	-	-	Nb+Ti+V≤0.22
Maximum Value	0.2	0.6	1.7	0.025	0.01	0.3	0.8	0.3	0.1	0.02	0.03	0.2	0.05	0.02	Nb+Ti+V≤0.22

P420NH Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤16	540~690	≥420	≥19
16＜t≤40	540~690	≥405	≥19
40＜t≤60	540~690	≥395	≥19
60＜t≤100	515~665	≥370	≥19
100＜t≤150	500~650	≥350	≥19
150＜t≤250	490~640	≥340	≥19

1 Approximate Comparison Table Pressure-Bearing Flat Steel

International Organization for Standardization		European Standard
ISO	Numerical Grade	EN	Numerical Grade
P420NH	1.8932	P420NH	1.8932

2 Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	United States	International Organization for Standardization	European Standard
GB	ASTM	ISO	EN
Q420R GB/T 713.2-2023	SA612 SA737 ASME Ⅱ-A-2021	P420NH P420NL1 ISO 9328-2018	P420NH P420NL1 EN 10028-2017

P420NH 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"!