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Heat Resistant Alloys

Chemical Composition

Classification

Alloy

UNS
(JIS)

Nominal Chemical Composition(wt%)

Heat Treatment

Tensile Strength
(N/mm²)

Elongation
(%)

others

Heat Resistant Alloys

Heat Resistant Alloys
(Solid Solution Strengthened Alloys)

DSALOY
600

N06600
(NCF600)

≧72.0

14.0-
17.0

6.0-
10.0

Cu≦0.50

≧550

≧30

DSALOY
601

N06601
(NCF601)

58.0-
63.0

21.0-
25.0

bal.

Cu≦1.00
Al 1.00-1.70

≧550

≧30

DSALOY
606

N06082

≧67.0

18.0-
22.0

≦3.0

Cu≦0.5
Ti≦0.7
Nb 2.0-3.0

DSALOY
617

N06617

≧44.5

20.0-
24.0

8.0-
10.0

10.0-
15.0

≦3.0

Cu≦0.5
Al 0.8-1.5
Ti≦0.6
B≦0.006

DSALOY
625

N06625
(NCF625)

≧58.0

20.0-
23.0

8.0-
10.0

≦1.0

≦5.0

Al≦0.40
Ti≦0.40
Nb+Ta 3.15-4.15

≧760

≧30

DSALOY
HX

N06002
(NW6002)

bal.

20.5-
23.0

8.0-
10.0

0.5-
2.5

17.0-
20.0

W 0.2-1.0
B≦0.010

≧585

≧30

DSALOY
242

N10242

bal.

7.0-
9.0

24.0-
26.0

≦1.0

≦2.0

Cu≦0.50

≧725

≧40

DSALOY
800

N08800
(NCF800)

30.0-
35.0

19.0-
23.0

≧39.5

C≦0.10
Cu≦0.75
Al 0.15-0.60
Ti 0.15-0.60

≧520

≧30

DSALOY
800H

N08810
(NCF800H)

30.0-
35.0

19.0-
23.0

≧39.5

C 0.05-0.10
Cu≦0.75
Al 0.15-0.60
Ti 0.15-0.60

≧450

≧30

DSALOY
800HA

N08811

30.0-
35.0

19.0-
23.0

≧39.5

C 0.06-0.10
Al 0.25-0.60
Ti 0.25-0.60
Al+Ti 0.85-1.20

≧450

≧30

DSN9

9.75-
10.25

23.0-
23.9

1.85-
2.05

bal.

Mn 5.80-6.20
N 0.47-0.53

≧550

≧25

High Temperature Strength Alloys
(Precipitation Strengthened Alloys)

DSALOY
X-750

N07750
(NCF750)

≧70.0

14.0-
17.0

5.0-
9.0

Cu≦0.50
Ti 2.25-2.75
Al 0.40-1.00
Nb+Ta 0.70-1.20

ST+AG

≧960

≧8

DSALOY
751

N07751
(NCF751)

≧70.0

14.0-
17.0

5.0-
9.0

Cu≦0.50
Ti 2.00-2.60
Al 0.90-1.50
Nb+Ta 0.70-1.20

ST+AG

≧960

≧8

DSA7018

bal.

(19)

(1)

(3)

(Ti 2.5)
(Al 1.4)
(W 1.5)
(Nb 1.3)

ST+AG

≧1,000

≧10

DSA3015

(32)

(16)

bal.

(Ti 2.7)
(Al 1.2)
(Nb 0.8)

ST+AG

≧900

≧10

DSALOY
718

N07718
(NCF718)

50.0-
55.0

17.0-
21.0

2.8-
3.3

bal.

Cu≦0.30
Ti 0.65-1.15
Al 0.20-0.80
B ≦0.006
Nb+Ta 4.75-5.50

ST+AG

≧1,240

≧10

DSALOY
80A

N07080
(NCF80A)

bal.

18.0-
21.0

≦1.5

Cu≦0.20
Ti 1.80-2.70
Al 1.00-1.80

ST+AG

≧1,000

≧20

DSALOY
90

bal.

18.0-
21.0

15.0-
21.0

≦1.5

Cu≦0.2
Ti 2.0-3.0
Al 1.0-2.0
Zr≦0.15
B≦0.02

ST+AG

≧1,079

≧25

DSALOY
263

N07263

bal.

19.0-
21.0

5.6-
6.1

19.0-
21.0

≦0.7

Cu≦0.20
Ti 1.9-2.4
Al ≦0.60
Ti+Al 2.4-2.8
B≦0.005

ST+AG

≧784

≧15

DSALOY
WA

N07001

bal.

18.0-
21.0

3.5-
5.0

12.0-
15.0

≦2.0

Cu≦0.50
Ti 2.75-3.25
Al 1.20-1.60
Zr　0.02-0.12
B 0.003-0.01

ST+AG

≧1,100

≧15

DSALOY
U-520

bal.

18.0-
20.0

5.5-
7.0

11.0-
14.0

Ti 2.9-3.25
Al 1.8-2.3
W 0.8-1.2
B 0.004-0.010

ST+AG

≧1,100

≧15

DHN2661

(25)

(16)

bal.

(Ti 3.5)
(Al 0.4)
(Nb 0.6)

ST+AG

≧1,000

≧10

DSA760

bal.

(38)

(Al 3.8)

ST+AG

≧1,500

A:Annealing　ST:Solution heat Treatment　AG:Aging

Features Applications

Classification		Alloy	Features	Applications
Heat Resistant Alloys	Heat Resistant Alloys (Solid Solution Strengthened Alloys)	DSALOY 600	Good oxidation resistance at high temp., Corrosion resistance to pure water/alkali/Cl - ion (SCC*)	Equipment for chemical and food production, Heat exchangers, Electronic components
		DSALOY 601	Excellent oxidation/corrosion resistance and at high temp. , High mechanical properties at high temp.	Heat treatment parts (such as muffles, retorts, baskets), Petrochemical manufacturing facilities, Gas turbine parts
		DSALOY 606	Suitable for welding Ni-Cr-Fe alloys, different materials welding between Ni alloy and carbon steel/stainless steel	Welding for Ni-Cr-Fe alloy, Different materials welding, Overlay welding
		DSALOY 617	Excellent strength, metallurgical phase stability and oxidation resistance even at 1,000℃ or higher temp.	Aircraft engine parts (afterburners, frame holders, liners), Gas turbine parts, Heat treatment parts, Air preheating parts
		DSALOY 625	High strength without heat treatment, Excellent corrosion resistance in a wide range of severe corrosive environments	Chemical product manufacturing facilities, Aerospace parts, Seawater treatment facilities
		DSALOY HX	Excellent strength and oxidation resistance up to 1,200℃, Good workability despite of high strength	Gas turbine parts, Industrial furnace parts, Heat treatment equipment
		DSALOY 242	Excellent strength at elevated temp. and oxidation resistance. Low thermal expansion	Bellows , Piping parts
		DSALOY 800	High strength, Resistance to oxidation and carburization, Corrosion resistance in high humidity atmosphere	Sheath heaters, Heat exchangers and pipes for chemical and petrochemical industries, Carburizing equipment
		DSALOY 800H	Higher creep strength than DSALOY800 by fine control of chemical composition	Chemical and petrochemical equipment such as heat exchangers and piping, Reheaters of power plants, Heat treatment furnaces
		DSALOY 800HA	Higher creep strength than DSALOY800H by fine control of chemical composition	Chemical and petrochemical equipment such as heat exchangers and piping, Reheaters of power plants, Heat treatment furnaces
		DSN9	Excellent corrosion resistance , High hardness after coldworking , Non-magnetic	Gaskets, Heat resistant parts , Corrosion resistant parts , Non-magnetic parts
	High Temperature Strength Alloys (Precipitation Strengthened Alloys)	DSALOY X-750	Excellent corrosion resistance, oxidation resistance, tensile strength and creep strength up to 700℃	Gas turbine parts, Aircraft parts, Pressure vessels, Heat resistant springs, Fasteners, Tools for hot working
		DSALOY 751	Suitable for exhaust valve of internal combustion engine	Internal combustion engine exhaust valves for automobiles
		DSA7018	Higher strength at elevated temp. than DSALOY751	Internal combustion engine exhaust valves for automobiles
		DSA3015	Cost competitive alloy due to Ni amount reduction in DSALOY751	Internal combustion engine exhaust valves for automobiles
		DSALOY 718	Excellent strength at elevated temp. , corrosion resistance, and creep strength up to 700℃	Gas turbine parts, Aircraft parts, Gaskets for turbocharger, Tools for hot extrusion
		DSALOY 80A	Excellent corrosion/oxidation resistance and creep strength up to 850℃	Exhaust valves for onshore or marine internal combustion engines, Gas turbine parts (blades, rings and disks)
		DSALOY 90	Excellent corrosion/oxidation resistance and creep strength up to 920℃	Blades and disks of gas turbines, Tools for hot working, Heat resistant springs
		DSALOY 263	Excellent corrosion resistance and high strength at elevated temp., Good workability, Good toughness at welding point	Rings and casings of gas turbines, Heat resistant parts from plate materials like disk spring for turbocharger
		DSALOY WA	Excellent strength and improved oxidation resistance at elevated temp.	Jet engine parts or gas turbine parts like rotating body
		DSALOY U-520	Excellent strength, creep strength and fatigue strength at elevated temp.	Gas turbine blades
		DHN2661	Excellent strength and stability at higher temperature than SUH660, Good cold workability	Heat resistant springs, Heat resistant fasteners, Gaskets for turbochargers
		DSA760	High hardness equivalent to that of martensite stainless steel, High corrosion resistance, Non magnetic	Medical scissors, Dental drills, Automotive turbo parts

Specifications・Available Products

Classification		Alloy	Available Products			Specifications
Classification		Alloy	Bar	Wire rod	Strip	ASTM	JIS
Heat Resistant Alloys	Heat Resistant Alloys (Solid Solution Strengthened Alloys)	DSALOY 600	◎	◎	◎	B166 B168 B564	G4901 G4902
		DSALOY 601	◎	◎	◎	B166 B168	G4901 G4902
		DSALOY 606	-	◎	◎	-	-
		DSALOY 617	○	◎	-	B166 B168 B564	-
		DSALOY 625	◎	◎	◎	B443 B446 B564	G4901 G4902
		DSALOY HX	○	◎	-	B572	H4553
		DSALOY 242	○	-	◎	B434	-
		DSALOY 800	◎	◎	◎	B408 B409 B564	G4901 G4902
		DSALOY 800H	◎	◎	-	B408 B409 B564	G4901
		DSALOY 800HA	◎	◎	-	B408 B409 B564	-
		DSN9	○	-	◎	-	-
	High Temperature Strength Alloys (Precipitation Strengthened Alloys)	DSALOY X-750	◎	◎	◎	B637	G4901 G4902
		DSALOY 751	◎	○	-	-	G4901
		DSA7018	◎	○	-	-	-
		DSA3015	◎	○	-	-	-
		DSALOY 718	◎	◎	◎	B637 B670	G4901 G4902
		DSALOY 80A	◎	○	-	B637	G4901
		DSALOY 90	○	-	-	-	-
		DSALOY 263	○	○	○	-	-
		DSALOY WA	○	◎	-	B637	-
		DSALOY U-520	○	◎	-	-	-
		DHN2661	○	◎	◎	-	-
		DSA760	○	◎	-	-	-