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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