GH4169 - GB /T 40313-2021

Grade	GH4169
Corresponding Standard	GB /T 40313-2021 Specification for wrought superalloy forging disks
Classification	Special Alloy Steel

GH4169 Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	Nb	B	Co	Al	Mg	Ta	More
普通级*	Minimum Value	0.015	-	-	-	-	17	50	-	2.8	0.75	4.75	-	-	0.3	-	-	Fe:余量
普通级*	Maximum Value	0.06	0.35	0.35	0.05	0.008	21	55	0.3	3.3	1.15	5.5	0.006	1	0.7	0.01	0.1	Fe:余量

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	Ti	Nb	B	Co	Pb	Al	Sn	Se	Mg	Bi	Ag	Ca	Ta	O	Te	More
优质级	Minimum Value	0.015	-	-	-	-	17	50	-	2.8	-	0.75	5	-	-	-	0.3	-	-	-	-	-	-	-	-	-	Fe:余量；Tl≤0.0001
优质级	Maximum Value	0.06	0.35	0.35	0.015	0.002	21	55	0.3	3.3	0.01	1.15	5.5	0.006	1	0.0005	0.7	0.005	0.0003	0.005	3.0E-5	0.0005	0.005	0.1	0.005	5.0E-5	Fe:余量；Tl≤0.0001

	Component	Fe	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	Ti	Nb	B	Co	Pb	Al	Sn	Se	Mg	Bi	Ag	Ca	Ta	O	Te	More
高纯级*	Minimum Value	16	0.012	-	-	0.007	-	17	52	-	2.8	-	0.75	5.2	-	-	-	0.35	-	-	-	-	-	-	-	-	-	Tl≤0.0001
高纯级*	Maximum Value	19	0.036	0.35	0.35	0.015	0.001	19	55	0.3	3.15	0.01	1.15	5.55	0.006	1	0.0005	0.65	0.005	0.0003	0.003	3.0E-5	0.0005	0.005	0.1	0.0025	5.0E-5	Tl≤0.0001

GH4169 Mechanical Properties

form	Test Temperature	Heat Treatment or Condition	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; ordinary grade; high-quality grade; Group Ⅰ③	Room Temperature	System 1	≥1275	≥1030	≥15	≥26	≥346	KU2: ≥39④
Sample; ordinary grade; high-quality grade; Group Ⅰ③		System 1	≥1078	≥932	≥12	≥20	-	-
Sample; ordinary grade; high-quality grade; Group Ⅰ③		System 1	High-temperature durability performance ①: Stress 883MPa, Creep rupture time tu≥25h
Sample; ordinary grade; high-quality grade; Group Ⅰ③		System 1	≥1470	≥1128	≥12	≥25	-	KU2 ≥45
Sample; Standard grade; Premium grade; Group II	Room Temperature	System 2	≥1275	≥1035	≥12	≥15	≥331	KU2 ≥39
Sample; Standard grade; Premium grade; Group II		System 2	≥540	≥440	≥15	≥25	-	-
Sample; Standard grade; Premium grade; Group II		System 2	High-temperature durability performance ①: Stress 390MPa, Creep rupture time tu≥0.5h		Creep Fracture Elongation Au ≥ 5%
Sample; high-quality grade; group III	Room Temperature	System 1	≥1345	≥1100	≥12	≥15	≥363	-
Sample; high-quality grade; group III		System 1	≥1080	≥930	≥12	≥15	-	-
Sample; high-quality grade; group III		System 1	High-temperature durability performance ①: Stress 725MPa, Creep rupture time tu≥25h Notched sample creep rupture time tue＞tu②		Creep Fracture Elongation Au ≥ 5%
Sample; high-quality grade; group III		System 1	High-temperature creep performance: Stress 825MPa, Creep elongation time tfx: 25h		Creep elongation rate Af ≤ 0.2%
Sample; high-quality grade; group IV	Room Temperature	System 2	≥1450	≥1240	≥10	≥15	≥388	-
Sample; high-quality grade; group IV		System 2	≥1170	≥1000	≥12	≥15	-	-
Sample; high-quality grade; group IV		System 2	High-temperature durability performance ①: Stress 700MPa, Creep rupture time tu≥25h Notched sample creep rupture time tue＞tu②		Creep Fracture Elongation Au ≥ 5%
Sample; high-quality grade; group IV		System 2	High-temperature creep performance: Stress 825MPa, Creep elongation time tfx: 25h		Creep elongation rate Af ≤ 0.2%
Sample; high-purity grade; group V	Room Temperature	System 1	≥1345	≥1100	≥12	≥15	≥363	-
Sample; high-purity grade; group V		System 1	≥1080	≥930	≥12	≥15	-	-
Sample; high-purity grade; group V		System 1	High-temperature durability performance ①: Stress 725MPa, Creep rupture time tu≥50h Notched sample creep rupture time tue＞tu②		Creep Fracture Elongation Au ≥ 5%
Sample; high-purity grade; group V		System 1	High temperature creep performance: Stress 662MPa, Creep elongation time tfx: 45h		Creep elongation rate Af ≤ 0.2%
Sample; high-purity grade; group VI	Room Temperature	System 2	≥1450	≥1240	≥10	≥15	≥388	-
Sample; high-purity grade; group VI		System 2	≥1170	≥1000	≥12	≥20	-	-
Sample; high-purity grade; group VI		System 2	High-temperature durability performance ①: Stress 700MPa, Creep rupture time tu≥75h Notched sample creep rupture time tue＞tu②		Creep Fracture Elongation Au ≥ 5%
Sample; high-purity grade; group VI		System 2	High temperature creep performance: Stress 825MPa, Creep elongation time tfx: 30h		Creep elongation rate Af ≤ 0.2%

1 Approximate Comparison Table Deformed High-Temperature Alloy

China		United States				Germany		France	United Kingdom
GB	ISC	Commercial Grade	UNS	SAE	AMS	DIN EN/DIN	W-Nr.	NF EN/NF	Commercial Grade
GH4169 (GH169)	H41690	Inconel 718	N07718	XEV-1	5596 5662	NiCr19NbMo NiCr19Fe19Nb5Mo3	2.4668	ATG C1 NC19FeNb	Inconel 718

2 Approximate Comparison Table Corrosion-Resistant Alloy

China		United States	Germany
GB	ISC	UNS	W-Nr.
NS 4301 GH 4169	H 07718	N 07718	2.4668

GH4169 Corresponding Standards(Same grade name, different standards)

1	GB /T 14992-2005
	GH4169 H41690 (GH169)
2	GB /T 14994-2008
	GH4169 (GH169)
3	GB /T 15007-2017
	(GH4169) NS4301 H07718
4	GJB 713-1989
	GH 4169
5	GB /T 40313-2021
	GH4169

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