X-750 Sheet Stock, Coil - AMS 5598, AMS 5542 - Inconel® Alloy Equivalent

Inconel Alloy® X-750 is a nickel-chromium austenitic alloy similar to Alloy 600 but made precipitation-hardenable by additions of aluminum and titanium. It has good resistance to corrosion and oxidation along with high tensile and creep-rupture properties at high temperatures to 1300°F (700°C).  This material has excellent relaxation resistance and is non-magnetic. It has good elevated temperature strength properties to 1300ºF (700°C) and oxidation resistance to 1800ºF (983˚C). Inconel® X-750 is resistant to a wide variety of industrial corrosives under both oxidizing and reducing conditions. This alloy also has excellent resistance to chloride stress corrosion cracking in the fully age hardened condition.


X750 Inventory Size Ranges

Sheet & Coil

0.023" - 0.075"

Sheet Quote Coil Quote

Standard Inventory Specifications

  • UNS N07750
  • AMS 5598
  • AMS 5542
  • ASTM B 637
  • ASME SB 637

Other industry standards we comply with:

  • PWA-LCS
  • S1000 / S-SPEC-1
  • GE Aviation S-SPEC-35 AeDMS S-400
  • RR SABRe Edition 2
  • DFARS Compliant
  • W.Nr 2.4669

Common Trade Names

  • ATI X-750 (™ Allegheny Technologies)
  • Inconel Alloy X-750  (® Special Metals)

Common Applications of X750

  • Structural members in hot sections of gas turbines such as discs, thrust reversers, and ducts
  • Aircraft structures
  • Rocket engines
  • Nuclear reactors
  • Heat treat fixtures
  • Cryogenic vessels, springs, and fasteners
  • Wire formulation with heat temper used in springs at elevated temperatures
Alloy X750 Chemical Composition
Element Percent by Weight
Ni Co Nickel + Cobalt 70% min
Cr Chromium 14-17%
Fe Iron 5-9%
Ti Titanium 2.25-2.75%
Al Aluminum 0.4-1.0%
No Ta Nobelium & Tantalum 0.7-1.2%
Si Silicon 0.50% max
S Sulfur 0.01% max
Cu Copper 0.50% max
C Carbon 0.08% max
Co Cobalt 1.00% max

Alloy X750 Physical Properties

Physical Property Values

Density

0.298 lb/in?, 8.26 g/cm?

Melting Range

2540-2600°F, 1395-1425°C

Curie Temperature

-225°F as hot-rolled

-193 triple-heat-treated (2100°F/2 hr, A.C., +1500°F/24 hr, A.C. + 1300°F/20 hr, A.C.)             

Magnetic Permeability

70°F, 200H, as hot rolled 1.0020

1.0035 triple-heat-treated (2100°F/2 hr, A.C., +1500°F/24 hr, A.C., +1300°F/20 hr, A.C.)

Emissivity  Oxidized Surface

600°F  0.895, 2000°F  0.925

Linear Contraction During Precipitation Treatment

1300°F/20 hr), in/in  Hot-rolled 0.00044, 20% Cold-rolled 0.00052, Annealed 0.00026

INCONEL® is a registered trademark of the Special Metals Corporation group of companies.

Mechanical Properties and Yield Strength of Alloy X 750 

Minimum Specified Properties

Ultimate Tensile Strength, ksi

120

.02% Yield Strength, ksi

60

Elongation, %

30

INCONEL® is a registered trademark of the Special Metals Corporation group of companies.


The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.