Inconel X‑750 Strips: Heat‑Resistant Nickel Alloy for Precision Components

Product Overview

Inconel X‑750 Strips (UNS N07750) are precipitation‑hardening nickel‑chromium alloys specifically formulated to meet the most rigorous demands of high‑temperature and corrosive‑service applications. With a typical composition of 70–75 % Ni, 14–17 % Cr, 0.75–1.50 % Ti, and 0.15–0.75 % Al, X‑750 achieves a fine dispersion of γ′ (Ni₃(Al,Ti)) precipitates during controlled aging, elevating yield strength above 830 MPa and ultimate tensile strength beyond 1 030 MPa, while retaining elongation above 15 %. These mechanical characteristics persist in continuous service up to 700 °C, making X‑750 Strips ideal for components exposed to cyclic thermal loading, such as turbine blade shims, heat‑exchanger baffles, coil springs, and downhole clip bands.

Beyond high‑temperature strength, X‑750 Strips offer exceptional resistance to chloride stress‑corrosion cracking and oxidation in oxidizing or mildly reducing atmospheres. Their weldability by TIG/GTAW or electron‑beam processes, followed by a simple post‑weld aging treatment, enables fabrication of complex assemblies without sacrificing performance. Strips are supplied in thicknesses from 0.1 mm to 5 mm, widths up to 300 mm, in mill‑annealed or cold‑worked conditions, with optional pickled or electropolished finishes. Custom dimensions and heat‑treat cycles are available to optimize creep‑rupture life, fatigue strength, or corrosion resistance for region‑specific applications across South Asia, Southeast Asia, the Middle East, Europe, and the Americas.

Chemical Composition

Mechanical Properties

Physical Properties

Conformance Standards

• ASTM B637 / SB‑637 – Precipitation‑hardened nickel‑alloy strip

• AMS 5664 – Special quality Inconel X‑750

• ASME SB‑637 – Boiler & Pressure Vessel Code

Applications

Inconel X‑750 Strips are specified for:

• Aerospace – Blade shims, turbine seals, coil spring elements.

• Power Generation – Superheater baffle plates, heat‑exchanger fins.

• Chemical Processing – High‑temperature mixer blades, reactor liners.

• Nuclear – Spring clips, control‑rod support hardware.

• Oil & Gas – Downhole snap‑rings, sealing strips, corrosion‑resistant clamps.

• Marine – Bilge cooler strips, desalination‑plant coils.

Frequently Asked Questions

Q1: What makes X‑750 Strips superior for cyclic‑temperature service?
A1: The γ′ precipitate microstructure and controlled grain size impart outstanding creep‑rupture resistance and fatigue life under repeated thermal cycling up to 700 °C.

Q2: Are Inconel X‑750 Strips weldable without strength loss?
A2: Yes. TIG/GTAW and electron‑beam welding followed by post‑weld aging fully restore precipitation‑hardening and mechanical properties.

Q3: Can strips be supplied in custom dimensions and finishes?
A3: Absolutely. Thicknesses from 0.1–5 mm and widths up to 300 mm are standard; pickled, electropolished, or cold‑worked conditions are available per specification.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.