General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
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). Extended applications that require high strength at temperatures beyond 1100°F (593°C) may require a solution treatment, with air cooling between intermediate and final aging.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.

Standard Inventory Specifications

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

Common Trade Names

ATI X-750 (™ Allegheny Technologies)
Inconel X750 (® Special Metals)
Alloy X 750

Common Applications of X750

Structural members in hot sections of gas turbines such as discs, thrust reversers, wheels 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
Exhaust valves of diesel engines
Applications that benefit from an alloy with high creep-rupture strength

Chemical Composition

Alloy X750 Chemical Composition

Element

Percent by Weight

NiCo

Nickel + Cobalt

70% min

Cr

Chromium

14-17%

Fe

Iron

5-9%

Ti

Titanium

2.25-2.75%

Al

Aluminum

0.4-1.0%

NoTa

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

Physical Properties

Alloy X750 Physical Properties

Physical Property	Values
Density	0.299
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

Mechanical Properties

Mechanical Properties and Yield Strength of Alloy X750

Minimum Specified Properties
Ultimate Tensile Strength, ksi		120
.02% Yield Strength, ksi		60
Elongation, %		30

Heat Treatment
AMS 5541	1300°F/20 hr., AC (Constant-temperature precipitation treatment).
AMS 5598	1350°F/8 hr., FC to 1150°F, Hold at 1150°F for total precipitation-treating time of 18 hr., AC (Furnace-cool precipitation treatment).

X750 Pipes
X750 Fittings
X750 Bars
X750 Sheets & Plates
X750 Coils & Strips
X750 Wires

X750 Seamless Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: X750…
Size: OD: Φ4-Φ1219mm; WT:…
Introduction: Wisine its production capacity of stainless steel seamless pipe, roughly 2100 tons per month. As per your requirement…