GH4742 - GB /T 40313-2021

Grade	GH4742
Corresponding Standard	GB /T 40313-2021 Specification for Wrought Superalloy Forging Disks
Classification	Nickel and Nickel Alloys

GH4742 Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	P	S	Cr	Mo	Ti	Nb	B	Co	Al	Ce	La	More
Minimum Value	-	0.04	-	-	-	-	13	4.5	2.4	2.4	-	9	2.4	-	-	Ni:余量
Maximum Value	1	0.08	0.3	0.4	0.015	0.008	15	5.5	2.8	2.8	0.01	11	2.8	0.01	0.1	Ni:余量

GH4742 Mechanical Properties

form	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
sample	Room Temperature	≥1210	≥755	≥13	≥14	302~375	KU2 ≥23
sample		High temperature long-term performance: Stress 804MPa, Creep fracture time tu ≥ 100h
sample		High temperature long-term performance: Stress 539MPa, Creep fracture time tu ≥ 50h

GH4742 Corresponding Standards(Same grade name, different standards)

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