18MnMo 4-5 - ISO 9328-2-2018

Grade	18MnMo 4-5
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

18MnMo 4-5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	0.9	-	-	-	-	-	0.45	-
Maximum Value	0.2	0.4	1.5	0.015	0.005	0.3	0.3	0.3	0.6	0.012

18MnMo 4-5 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)	510~650	≥345	≥20	（-20℃） ≥27
60＜t≤150	Normalizing and Tempering (+NT)	510~650	≥325	≥20	≥27
150＜t≤250	Quenching and Tempering (+QT)	480~620	≥310	≥20	≥27

Approximate Comparison Table

China	International Organization for Standardization	European Standard
GB	ISO	EN	Numerical Grade
18MnMoNbR	18MnMo4-5	18MnMo4-5	1.5414

18MnMo4-5 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"!