Inconel X750 Ni-Cr Alloy Welding Wire

Specifications: UNS N07750  Werkstoff Nr. 2.4669
Applications: The Inconel X750 alloy finds applications as high-temperature structural members for gas turbines, jet engine parts, nuclear power plants, heat-treat fixtures, forming tools and extrusion dies.

Inconel X750 Ni-Cr Alloy Welding Wire

Inconel X750 Ni-Cr Alloy Welding Wire Introduction

Inconel X750 is a precipitation-hardening alloy that is highly resistant to corrosion and oxidation. It has good stress-rupture strength and low creep rates under high stress at temperatures up to 1500ºF (815ºC) after appropriate heat treatments. It is widely used in Oil & Gas Extraction and Processing, Nuclear, Aerospace, Power Generation and Automotive.

Inconel X750 is a Nickel-Chromium alloy made of precipitation hardenable by additions of Al and Ti, having creep-rupture strength at high temperatures to about 700oC (1290oF). It is widely used for high-temperature conditions but is not as strong as Nimonic 90.

Alloy X-750 has excellent resistance to chloride ion stress-corrosion cracking. It exhibits satisfactory resistance to numerous oxidizing environments. The alloy has similar corrosion resistance to alloy 600 in many media.

Inconel X750 is also known as Nicrofer 7016, Superimphy 750, Haynes X750, Pyromet X750, and Udimet X750.

Inconel X750 Ni-Cr Alloy Welding Wire Specification

AMS 5698
AMS 5699
Werkstoff Nr. 2.4669

Inconel 625 Ni-Cr-Mo Alloy Welding Wire Typical Chemical Composition

Element Min % Max %
C 0.08
Mn 1.00
Si 0.50
S 0.01
Cr 14.00 17.00
Ni 70.00
Nb/Cb 0.70 1.20
Ti 2.25 2.75
Al 0.40 1.00
Fe 5.00 9.00
Co 1.00
Ta 0.05
Cu 0.50

Inconel 625 Ni-Cr-Mo Alloy Welding Wire Typical Properties

Room Temperature Mechanical Properties

Temper Tensile Strength, Yield Strength Elongation Hardness,
psi 0.2% offset, psi in 2″, % Brinell
Hot-finished + 1300°F/20 hr,A.C 170,000-206,000 120,000-163,000 25-15 313-400
Hot-finished + Annealed 1800°F/1 hr,
A.C + 1350°F/ 8 hr, F.C.
100°F/hr to 1150°F (total 18 hr), A.C.
162,000-193,000 115,000-142,000 30-15 300-390
Hot-finished + 1625°F/24 hr,
A.C + 1300°F/20 hr, A.C.
160,000-188,000 100,000-135,000 30-15 302-363
Cold-rolled, annealed +
1300°F/20 hr, A.C.
160,000-197,000 105,000-150,000 30-20 300-400

Physical Properties

Density 8.28g/cm³ 0.299 lb/in³
Melting Point 1430°C 2600°F
Coefficient of Expansion 12.6 μm/m °C (20 – 100°C) 7.0 x 10-6 in/in °F (70 – 212°F)
Modulus of Rigidity 75.8 kN/mm² 10994 ksi
Modulus of Elasticity
(Spring Temper + Aged)
(Spring Temper + 3 Part Heat Treated)
(No.1 Spring Temper + Aged)
218.0 kN/mm²
212.4 kN/mm²
213.7 kN/mm²
31619 ksi
30806 ksi
30995 ksi

Please note that the above specifications are “general specifications” that pertain to the majority of our production. These specifications should only be used for general, informational purposes. All dimensions and specifications are nominal and are subject to normal manufacturing tolerances. All specifications are subject to change without prior notice. All pictures shown are for illustration purposes only. Actual product may vary.

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


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