Heat Resistance Alloys

To respond to the environmental issues and because of the introduction of new manufacturing processes of electronics components, etc, more facilities, equipments, and parts are being used in high temperatures. As a result, there is a growing need for: improvement in the reliability of products and equipments; reduction in the equipment maintenance frequency span; reduction in the total investment costs by taking into consideration increased operating rates as well as the running and maintenance costs, etc.

Based on 40 and more years of accumulated experience in melting technology, processing technology, quality control system, and on heat-resistance data under various conditions and high-temperature corrosion data, etc., MMC Superalloy provides various types of heat-resistant alloy products as well as advice on deciding materials, and offers a wide variety of services.

The following list, for reference, is a comprehensive introduction of the various types of alloys. Please note that each data is an average value based on experimental data, and is not a guaranteed value.

Technical Data is here.
Technical Data

Lineup

Material	Property and application	Equivalent Alloy
MA47P	Reference Data (PDF)
MC Alloy	Excellent corrosion resistance to nitric hydrofluoric acid, phosphoric acid, and sulfuric acid. Superior high-temperature corrosion resistance.
MA-N	Shows excellent corrosion resistance to molten salts, especially to molten fluoride salt. Used for jet engine parts.
MA-X	Has good high-temperature strength and excellent oxidization resistance.	Hastelloy X
MA600,MA600T	Excellent oxidation resistance. Used for industrial furnace, aircrafts , and nuclear energy plant material	Inconel 600
MA601	Excels especially in oxidation resistance. Used for heat treatment furnaces.	Inconel 601
MA625	Excellent oxidation and corrosion resistance to various acids. Has high fatigue strength.	Inconel 625
MA718	Used for jet engines and rocket parts for its outstanding high-temperature strength.	Inconel 718
MA706	Used for jet engines and rocket parts for its good high-temperature strength.	Inconel 706
MA750	Used mostly in gas turbine parts for its excellent high-temperature strength.	Inconel X-750
MA75N	Excellent high-temperature strength and oxidation resistance. Mainly used as heat treatment furnace material.	Nimonic 75
MA80A	Better high-temperature strength than MA75N. Used under high stress.	Nimonic 80A
MA90N	Allows use in higher temperatures than MA80A. Used for jet engines and internal combustion parts.	Nimonic 90
MA263	Good high-temperature creep strength. Used for jet engine parts.	Nimonic 263
MA-WASP	Good high-temperature strength. Used for jet engine and gas turbine parts.	Waspaloy
MA24	Excellent high-temperature oxidation resistance. Used for firing jigs of electronic material and mesh belts of continuous annealing furnaces.	Haynes 214 Alloy
MA23	Excellent high-temperature oxidation resistance and superior high-temperature strength. Used for jet engine parts and internal combustion parts.	Haynes 230 Alloy
MA25	Good high-temperature strength. Widely used for aircrafts and furnace material.	Haynes 25 Alloy
MA188	Has superior oxidation resistance and high strength. Used in aircrafts and gas turbines.	Haynes 188 Alloy
UMC050	Superior thermal shock and wear resistance. Strong against sulfur and vanadium-attack, and used as heat treatment furnace material.
MA800	Has good high-temperature strength, and also resistant to oxidation and carburization . Used in petrochemical high-temperature reactors.	Incoloy 800
MA800H,MA800HT	Alloy with better high-temperature strength and higher creep rupture strength than MA800.	Incoloy 800H
MA286	Precipitation-enhanced type alloy that has excellent high-temperature strength and corrosion resistance. Used for jet engine parts.	A-286
MA155N	Excellent high-temperature strength. Used for turbine blades and jet engine parts.	N-155
MA5560	Superior oxidation resistance, corrosion resistance, and sulfuration resistance.	Haynes 556 Alloy

‡Haynes and Hastelloy are registered trademark of Haynes International,Inc.
‡Inconel, Incoloy, Nimonic are registered trademark of Special Metals Corporation.
‡Waspaloy is a registered trademark of United Technologies,Inc.

Composition

Alloys	Ni	Cr	Mo	Co	W	Fe	Al	Ti	other
MC Alloy	Bal	45	1
MA-N	Bal	7	16.5
MA-X	Bal	22	9	1.5	0.6	18
MA600,MA600T	Bal	15.5				7
MA601	Bal	23				14	1.35
MA625	Bal	21.5
MA718	Bal	19	3			19	0.5	0.9	(Nb+Ta)5.1
MA706	Bal	16				37		1.8	(Nb+Ta)2.9
MA750	Bal	15				7	0.7	2.5	(Nb+Ta)1.0
MA75N	Bal	19.5						0.4
MA80A	Bal	19.5		1.0			1.1	2.2
MA90N	Bal	19.5		17			1.4	2.4
MA263	Bal	20	5.9	20			0.5
MA-WASP	Bal	19	4	14		1	1.3	3.0
MA24	Bal	16					4.5
MA23	Bal	22	2		14
MA25	10	20		Bal	15	1.5
MA188	22	22		Bal	14.5	<3			La
UMC050		28		Bal		21			C0.1,Mn0.9,Si1
MA800	32.5	21				Bal		0.38
MA800H,MA800HT	32.5	21				Bal		0.38	High C
MA286	26	15	1.3			Bal	0.2	2.1	V0.3
MA155N	20	21	3	20	2.5	Bal
MA5560	20	22	3	18	2.5	Bal			La,Zr,N

‡Haynes and Hastelloy are registered trademark of Haynes International,Inc.
‡Inconel, Incoloy, Nimonic are registered trademark of Special Metals Corporation.
‡Waspaloy is a registered trademark of United Technologies,Inc.

Product Shape

A=Available, N/A=Not Available

Alloy	Hot rolling plates	Cold rolling plates	Bars Forgings	Wires	Piping tubes (Includes welded pipes)	Fabricated products	Equivalent Alloy
MC Alloy	A	A	A	A	A	A
MA-N	A	A	A	A	A	A
MA-X	A	A	A	A	A	A	Hastelloy X
MA600,MA600T	A	A	A	A	A	A	Inconel 600
MA601	A	A	A	A	A	A	Inconel 601
MA625	A	A	A	A	A	A	Inconel 625
MA718	A	A	A	A	N/A	N/A	Inconel 718
MA706	N/A	A	A	N/A	N/A	N/A	Inconel 706
MA750	A	A	A	A	A	N/A	Inconel X-750
MA75N	A	A	A	A	A	N/A	Nimonic 75
MA80A	A	A	A	A	A	N/A	Nimonic 80A
MA90N	A	A	A	A	N/A	N/A	Nimonic 90
MA263	A	A	A	A	N/A	N/A	Nimonic 263
MA-WASP	A	A	A	A	N/A	N/A	Waspaloy
MA24	A	A	A	A	A	A	Haynes 214 Alloy
MA23	A	A	A	A	A	A	Haynes 230 Alloy
MA25	A	A	A	A	A	A	Haynes 25 Alloy
MA188	A	A	A	A	A	A	Haynes 188
UMC050	A	A	A	N/A	A	A
MA800	A	A	A	A	A	A	Incoloy 800
MA800H,MA800HT	A	A	A	A	A	A	Incoloy 800H
MA286	A	A	A	A	A	N/A	A-286
MA155N	A	A	A	A	A	A	N-155
MA5560	A	A	A	A	A	A	Haynes 556 Alloy

‡Haynes and Hastelloy are registered trademark of Haynes International,Inc.
‡Inconel, Incoloy, Nimonic are registered trademark of Special Metals Corporation.
‡Waspaloy is a registered trademark of United Technologies,Inc.

Available Specifications

Alloy	UNS No.	ASME,ASTM	AMS	JIS	Equivalent Alloy
MA-X	N06002	SB435 SB572 SB619 SB622 SB626	5536 5754 5587 5588	H4551 H4552 H4553 H4554	Hastelloy X
MA600,MA600T	N06600	SB166 SB168 SB517 SB163 SB167 Code Case 1484,1578,1290	5540 5665	G4901 G4902 G4903 G4904	Inconel 600
MA601	N06601	Code Case 1500 SB163 SB166 SB167 SB168	5870 5715	G4901 G4902	Inconel 601
MA625	N06625	SB443 SB444 SB446 Code Case 1409	5599 5666	G4901 G4902 G4903 G4904	Inconel 625
MA718	N07718	SB637 B670	5596 5597 5662 5663 5664	G4901 G4902	Inconel 718
MA706	N09706		5605 5606 5701 5702 5703		Inconel 706
MA750	N07750	SB637 Code Case 1344,1390	5542 5667 5668 5670	G4901 G4902	Inconel X750
MA80A	N07080			G4901 G4902	Nimonic 80A
MA-WASP	N07001		5544 5704 5706 5708 5709
MA23	N06230	SB435 SB572 SB619 SB622 SB626	5878 5891
MA25	R30605		5537 5759
MA188	R30188		5608 5772
MA800	N08800	SB163 SB407 SB408 SB409 SB514 SB515		G4901 G4902 G4903 G4904	Incoloy 800
MA800H,MA800HT	N08810	SB163 SB407 SB408 SB409 SB514 SB515 Code Case 1325		G4901 G4902 G4903 G4904	Incoloy 800H
MA155N	R30155		5532 5768 5769	G4311 G4312	N-155
MA5560	R30556	SB435 SB572 SB619 SB622 SB626	5831 5874 5877		Haynes556 Alloy

‡Haynes and Hastelloy are registered trademark of Haynes International,Inc.
‡Inconel, Incoloy, Nimonic are registered trademark of Special Metals Corporation.
‡Waspaloy is a registered trademark of United Technologies,Inc.