1Cr11Co3W3NiMoVNbNB - DL /T 439-2018

Grade	1Cr11Co3W3NiMoVNbNB
Corresponding Standard	DL /T 439-2018 The Technical Guide for High-Temperature Bolt of Fossil-Fired Power Plant
Classification	Alloy Steel

1Cr11Co3W3NiMoVNbNB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	W	V	Nb	B	Co
Minimum Value	0.08	-	0.35	-	-	10	0.3	0.8	0.01	2.4	0.15	0.05	0.01	2.5
Maximum Value	0.13	0.1	0.65	0.013	0.01	12	0.7	1.1	0.035	3	0.25	1.2	0.04	3.5

1Cr11Co3W3NiMoVNbNB 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	≥890	≥620	≥15	≥45	291~331	≥11

1Cr11Co3W3NiMoVNbNB Corresponding Standards(Same grade name, different standards)

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