X10CrMoVNb 9-1 - ISO 9328-2-2018

Grade	X10CrMoVNb 9-1
Corresponding Standard	ISO 9328-2-2018 Steel flat products for pressure purposes - Non-alloy and alloy steels with specified elevated temperature properties
Classification	Alloy Steel

X10CrMoVNb 9-1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	V	Nb	Al ^①
Minimum Value	0.08	-	0.3	-	-	8	-	-	0.85	0.03	0.18	0.06	-
Maximum Value	0.12	0.5	0.6	0.02	0.005	9.5	0.3	0.3	1.05	0.07	0.25	0.1	0.04

X10CrMoVNb 9-1 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤60	Normalizing and Tempering (+NT)	580~760	≥445	≥18	（-20℃） ≥27
60＜t≤150	Normalizing and Tempering (+NT)	550~730	≥435	≥18	≥27
150＜t≤250	Quenching and Tempering (+QT)	520~700	≥435	≥18	≥27

Approximate Comparison Table Pressure-Bearing Flat Steel

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
X10CrMoVNb 9-1	X10CrMoVNb 9-1	1.4903

X10CrMoVNb9-1 Corresponding Standards(Same grade name, different standards)

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