18Cr11NiMoNbVN - DL /T 439-2018

Grade	18Cr11NiMoNbVN
Corresponding Standard	DL /T 439-2018 The Technical Guide for High-Temperature Bolt of Fossil-Fired Power Plant
Classification	Alloy Steel

18Cr11NiMoNbVN Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	V	Nb	Al
Minimum Value	0.15	-	0.5	-	-	10	0.3	-	0.6	0.04	0.2	0.2	-
Maximum Value	0.2	0.5	0.8	0.02	0.015	12	0.6	0.2	0.9	0.09	0.3	0.6	0.03

18Cr11NiMoNbVN 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	≥930	≥760	≥12	≥32	277~331	≥11

18Cr11NiMoNbVN Corresponding Standards(Same grade name, different standards)

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