GH4145 - DL /T 439-2018

Grade	GH4145
Corresponding Standard	DL /T 439-2018 The Technical Guide for High-Temperature Bolt of Fossil-Fired Power Plant
Classification	Nickel and Nickel Alloys

GH4145 Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	P	S	Cr	Ni	Cu	Ti	Zr	B	Al	Mg
Minimum Value	5	-	-	-	-	-	14	70	-	2.25	-	-	0.4	-
Maximum Value	9	0.08	0.35	0.35	0.015	0.01	17	-	0.5	2.75	0.05	0.01	1	0.01

GH4145 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	≥1000	≥550	≥12	≥18	262~331	-

GH4145 Corresponding Standards(Same grade name, different standards)

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