Products Features
Excellent High-temperature Strength and Creep Resistance
Strengthened by γ' phase precipitation, it maintains excellent tensile strength and creep resistance at high temperatures, making it suitable for rotating parts and structural components subjected to long-term high-temperature loads, outperforming conventional austenitic stainless steels.
Excellent Antioxidant and Corrosion Resistance
It exhibits good oxidation resistance and gas corrosion resistance at high temperatures. Additionally, it shows good corrosion resistance to chloride ions and various chemical media, making it suitable for industrial furnaces, heat treatment equipment, and high-temperature chemical environments.
Good Machining and Welding Properties
It exhibits favorable cold and hot working properties, allowing forming and welding through conventional processes. Suitable for manufacturing complex parts such as springs, bolts, blades, fasteners, and high-temperature structural components.
Technical Specifications
Chemical Composition
|
Element |
Standard Requirements |
Notes |
|
Ni |
≥70.0% |
Matrix elements that provide corrosion resistance |
|
Cr |
14.0 - 17.0% |
Provide antioxidant and corrosion resistance capabilities |
|
Fe |
5.0 - 9.0% |
Structural support to reduce costs |
|
Ti |
2.25 - 2.75% |
Precipitation strengthening forms the γ' phase |
|
Al |
0.40 - 1.00% |
Precipitation strengthening forms the γ' phase |
|
Nb+Ta |
0.70 - 1.20% |
Auxiliary strengthening, controlling grain size |
|
C |
≤ 0.08% |
Strict control to prevent intergranular embrittlement |
|
Si |
≤ 0.50% |
Oxygen absorber |
|
Mn |
≤ 1.00% |
Deoxidizer, improve hot working properties |
|
P |
≤ 0.015% |
Impurity elements |
|
S |
≤ 0.010% |
Prevent hot brittleness |
Physical Properties
|
Property |
Value/Range |
Test Conditions |
|
Density |
8.28 g/cm³ |
Room temperature (20°C) |
|
Melting Point |
1390 - 1430 °C |
- |
|
Specific Heat Capacity |
430 J/kg·K |
20°C |
Mechanical Properties (Age-hardened Condition, Typical Value)
|
Property |
Typical Value |
Specification |
|
Tensile Strength |
≥ 1000 MPa |
ASTM B637 |
|
Yield Strength |
≥ 580 MPa |
ASTM B637 |
|
Elongation |
≥ 20% |
ASTM B637 |
|
Hardness |
≤ 35 HRC |
- |
High-Temperature Performance
At 700°C, the tensile strength remains above approximately 700 MPa. At 800°C, the tensile strength remains above approximately 400 MPa.
Long-Term Operating Temperature Range: It is recommended that the long-term operating temperature range be -200°C to 800°C.
Maximum Intermittent Temperature Resistance: Maximum temperature of 980°C.
Oxidation Resistance: It has good oxidation resistance below 980°C, with a dense and well-adhered oxide film.
Creep Resistance: At 700-800 °C and under moderate stress, its creep properties are superior to those of most precipitation-hardened stainless steels.
Application Areas
-
Gas Turbines (Blades, Rings, Fasteners)
-
Nuclear Reactors (In-core Components, Springs, Fasteners)
-
Aerospace (Rocket Engine Components, Exhaust Systems)
-
High-Temperature Fasteners and Springs (Bolts, Studs, Washers)
-
Heat Treatment Fixtures and Trays
-
Industrial Furnace Components (Radiant Tubes, Furnace Rollers)
-
High-Temperature Chemical Equipment (Cracking Tubes, Heat Exchangers)
-
High-Temperature Automotive Engine Components (Turbochargers)
-
Exhaust Systems and Seals
-
High-Temperature Molds and Jigs
Customizable Material Forms
We support the production of various basic and special forms according to drawings or specifications.
|
Form |
 Sheet/Plate
|
 Bar/Rod
|
 Seamless Pipe
|
 Strip/Sheet Coil
|
 Wire/Wire Rod
|
|---|---|---|---|---|---|
|
Conventional Range |
Thickness: 0.5 - 100 mm |
Diameter Φ6-500mm |
Outer Diameter Φ6-300mm |
By weight or dimensions (also by drawings) |
Diameter Φ0.5-10mm |
|
Customization Capability |
Special thick/ thin rolling, ultra-wide plates; special surface treatment, fixed-length cutting |
Large-sized forged bars (up to Φ800 mm), special-shaped bars, different heat treatment conditions of various grades |
Large-diameter, thick-walled pipes, special alloy composition; Pipe end processing (beveling, fixed length) |
Free forging/ mold forging, near-net shaping |
Special surfaces, precision drawing |
Why Source From Us? - Trusted Engineering. Reliable Delivery.
Not just a supplier, but a material partner you can rely on in China.
Vertically Integrated Production
Own 20,000㎡ facility with 10+ automated lines (8,000+ tons/year). In-house tooling & die center enables rapid customization and effective cost control - no middleman markup.
Strict Quality Control at Every Stage
Full traceability across key QC checkpoints throughout production. 100% compliant with ASTM/ASME, EN, and GB standards. Material test reports available with every shipment.
Reliable Delivery & Export Packaging
10+ years exporting to Europe, North America, Southeast Asia & Middle East with waterproof and anti-rust protection, combined with flexible shipping options ensures safe and on-time arrival.
Sample Validation Before Mass Production
We provide free samples for quality verification, allowing you to place bulk orders only after approval. We ensure consistency from sample to mass production by accurate dimensional measurement and transparent manufacturing.
FAQ
Q: What are the main advantages of Inconel X-750?
Q: What kind of heat treatment does Inconel X-750 require?
Q: What is the maximum operating temperature?
Q: What is the difference from Inconel 625?
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