SCMQ4E - JIS G 4110-2021

Grade	SCMQ4E
Corresponding Standard	JIS G 4110-2021 High Strength Chromium-Molybdenum and Chromium-Molybdenum-Vanadium Alloy Steel Plates for Pressure Vessels Under High-Temperature Service
Classification	Alloy Steel

SCMQ4E Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	Nb	B
Minimum Value	-	-	0.3	-	-	2	-	-	0.9	-	-	-
Maximum Value	0.17	0.5	0.6	0.015	0.015	2.5	0.4	0.4	1.1	0.03	0.02	0.001

SCMQ4E Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
580~760	≥380	≥18	≥45	-18°C ≥54

Approximate Comparison Table Pressure-Bearing Flat Steel

Japan	United States	International Organization for Standardization
JIS	ASTM	ISO
SCMQ4E	A542B4	14CrMo 9-10

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