UNS Number N07750

Inconel X-750 is a precipitation hardened super alloy providing high resistance to chemical corrosion and oxidation. Good stress rupture strength and nominal creeping under high stresses at temperatures up to 1500° F or 816° C after heat processing. The outstanding resistance of this alloy is significant in high temperature springs and bolts.

Available Forms of Inconel X-750 at Rooplaxmi Steels:

•           Bar
•           Sheet
•           Plate
•           Pipe & Tube (welded and seamless)
•           Wire

 

Characteristics of Inconel X-750:

•           Excellent resistance to stress corrosion cracking
•           Prevents attack in diverse oxidizing conditions
•           Similar corrosion resistance properties to Inconel 600
•           Consistent performance in various chemical media

Inconel X-750 Chemical Composition, %:

Ni + Co	Cr	Fe	Ti	Al	Nb + Ta	Mn	Si
70.00 min	14.0-17.0	5.0-9.0	2.25-2.75	0.4-1.0	0.70-1.20	1.00 max	0.50 max

S	Cu	C	Co
0.01 max	0.50 max	0.08 max	1.00 max

 

Application of Inconel X-750:

•           Gas turbines and turbine blades, seals, and rotors
•           Bolts
•           Forming tools
•           Extrusion dies
•           Heat treating and nuclear reactor applications

 

Machining and Fabrication with Inconel X-750:

Inconel X-750 resistance alloy is readily formed by following the methods that are used on the industrial scale. The suggested temperature for the hot processing is more than 1900° F. The welding techniques for Inconel X-750 alloy are gaseous tungsten arc, plasma-arc, electron-beam, resistance and pressure oxyacetylene welding. The welding of Inconel alloy by following the gas tungsten arc, the Inconel filler metal 718 is employed. The joint competencies are almost 100% at the room temperature though it decreases to 20% at the high temperature of 1300° F to 1500° F.

Inconel X-750 ASTM Specification:

Sheet / Plate	Bar	Forging
AMS 5542, AMS 5598	B637	B637

 

Welding Wire Designations:

NiCr15Fe7TiAl

 

Mechanical Properties of Inconel X-750:
At Room temperature

Ultimate Tensile Strength	181000 psi
Yield	(0.2 % offset) 123000 psi
Elongation	30 %