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AMS INCONEL® alloy MA 758 Details

INCONEL® alloy MA 758 Application:It is used in a range of thermal processing applications, from furnace components, such as hearth rollers, to jigs, tools, and other fabrications for supporting workpieces through heat-treatment processes. It has been specified for a fuel atomizer applica

Category Type Grade Designations
Grades Superalloys INCONEL® alloy MA 758 USA - AMS ,

Chemical composition(wt.%) of INCONEL® alloy MA 758 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - - 0.05
Cr - - 30.00
Al - - 0.30
Ti - - 0.50
Yttrium oxide (Y2O3) - - 0.60
Fe - - 1.00
Ni - - Bal

Mechanical properties of grade INCONEL® alloy MA 758

Yield Strength,Rp 0.2(MPa)

Condition Min Max Similar Note
20℃ 560 Bar
200℃ 495 Bar
600℃ 421 Bar
700℃ 371 Bar
750℃ 274
800℃ 214
1000℃ 151

Tensile Strength,Rm(MPa)

Condition Min Max Similar Note
20℃ 949 Bar
200℃ 853 Bar
600℃ 741 Bar
700℃ 546 Bar
750℃ 429
800℃ 339
1000℃ 173

Impact,Kv/Ku(J)

Condition Min Max Similar Note

Elongation,A(%)

Condition Min Max Similar Note
20℃ 27 Bar
200℃ 22 Bar
600℃ 23 Bar
700℃ 29 Bar
750℃ 41
800℃ 47
1000℃ 29

Reduction of area,(%)

Condition Min Max Similar Note

Hardness

Condition Type Min Max Similar Note

Physical properties of grade INCONEL® alloy MA 758

Density, g/cm3 Note
8.14
Melting Point (Solidus), ℃ Note
1375

INCONEL® alloy MA 758 is an oxide-dispersionstrengthened (ODS) nickel-chromium superalloy, made by mechanical alloying. It is a development of the wellestablished aerospace superalloy, INCONEL alloy MA 754, with its chromium content increased to 30%, to improve its performance in corrosive environments at high temperatures. The alloy’s high-temperature strength is enhanced by the use of yttrium oxide for dispersion strengthening.

In addition to its strength and corrosion resistance at high service temperatures, it is readily fabricated and can be hot formed into a range of shaped components for use in thermal processing applications. INCONEL alloy MA 758 is used in some of the most demanding applications for high-temperature metals and alloys. For example, for furnace skid rails to transport heavy steel billets and slabs, at 1260°C(2300°F) and above, and for the bowl-shaped

components used to spin molten glass, at around 1200°C (2200°F), to produce fiberglass for thermalinsulation.

It is used in a range of thermal processing applications, from furnace components, such as hearth rollers, to jigs, tools, and other fabrications for supporting workpieces through heat-treatment processes. It has been specified for a fuel atomizer application in diesel engines.

INCONEL® alloy MA 758 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
INCONEL® alloy MA 758 AMS USA
It is used in a range of thermal processing applications, from furnace components, such as hearth rollers, to jigs, tools, and other fabrications for supporting workpieces through heat-treatment processes. It has been specified for a fuel atomizer applica

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