20Cr1Mo1VNbTiB - DL /T 439-2018

Grade	20Cr1Mo1VNbTiB
Corresponding Standard	DL /T 439-2018 The Technical Guide for High-Temperature Bolt of Fossil-Fired Power Plant
Classification	Alloy Steel

20Cr1Mo1VNbTiB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	B
Minimum Value	0.17	0.4	0.4	-	-	0.9	-	-	0.75	0.05	0.5	0.11	0.001
Maximum Value	0.23	0.6	0.65	0.025	0.025	1.3	0.3	0.25	1	0.14	0.7	0.22	0.005

20Cr1Mo1VNbTiB Mechanical Properties

condition	Test Temperature	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Bolt Material	Room Temperature	≥785	≥670	≥14	≥50	255~302	Ku ≥39

20Cr1Mo1VNbTiB Corresponding Standards(Same grade name, different standards)

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