Products Features
Outstanding Corrosion Resistance
It exhibits extremely strong resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking caused by chloride ions, and performs stably in seawater, acidic gases, and various corrosive chemical media, far exceeding ordinary stainless steels.
High Strength and Fatigue Resistance
Through solid solution strengthening with niobium and molybdenum, it maintains high strength and good fatigue resistance at both room and high temperatures, making it suitable for structural components subjected to long-term alternating loads.
Excellent Machining and Welding Performance
It has good cold and hot working properties as well as welding performance, and can be processed into various forms such as plates, strips, bars, wires, and tubes to meet the requirements of complex industrial applications.
Technical Specifications
Chemical Composition
|
Element |
Standard Requirements |
Notes |
|
Ni |
≥58.0% |
Matrix elements that provide corrosion resistance |
|
Cr |
20.0 - 23.0% |
Provide antioxidant and corrosion resistance capabilities |
|
Mo |
8.0 - 10.0% |
Enhance resistance to corrosion in reducing media |
|
Nb+Ta |
3.15 - 4.15% |
Solid solution strengthening, enhancing high-temperature strength |
|
Fe |
≤ 5.0% |
Structural support |
|
C |
≤ 0.10% |
Strict control |
|
Si |
≤ 0.50% |
Oxygen absorber |
|
Mn |
≤ 0.50% |
Oxygen absorber |
|
P |
≤ 0.015% |
Impurity elements |
|
S |
≤ 0.015% |
Prevent hot brittleness |
Physical Properties
|
Property |
Value/Range |
Test Conditions |
|
Density |
8.44 g/cm³ |
Room temperature (20°C) |
|
Melting Point |
1290 - 1350 °C |
- |
|
Specific Heat Capacity |
410 J/kg·K |
20°C |
Mechanical Properties (Solution Annealed Condition, Typical Values)
|
Property |
Typical Value |
Specification |
|
Tensile Strength |
≥ 830 MPa |
ASTM B443 / B444 / B446 |
|
Yield Strength |
≥ 410 MPa |
ASTM B443 / B444 / B446 |
|
Elongation |
≥ 30% |
ASTM B443 / B444 / B446 |
|
Hardness |
≤ 95 HRB (or ≤ 220 HB) |
- |
High-Temperature Performance
At 700°C, the tensile strength remains above approximately 500 MPa. At 900°C, the tensile strength remains above approximately 150 MPa.
Long-Term Operating Temperature Range: It is recommended that the long-term operating temperature range be -200°C to 980°C.
Maximum Intermittent Temperature Resistance: Maximum temperature of 980°C.
Oxidation Resistance: Low oxidation rate and good adhesion of the oxide film in static air at 980°C.
Creep Resistance: Superior creep performance to most austenitic stainless steels under 700–900°C and moderate stress.
Application Areas
-
Marine Engineering (Seawater Pipelines, Pumps, Valves, Fasteners)
-
Chemical Processing Equipment (Reactors, Heat Exchangers, Towers)
-
Nuclear Power Systems (Coolant Pipelines, Tanks)
-
Aerospace (Exhaust Systems, Turbine Shrouds)
-
Flue Gas Desulfurization Systems
-
Wastewater Treatment Equipment
-
High-Temperature Corrosion-Resistant Structural Components
-
Oil and Gas Drilling Equipment
-
Heat Exchangers
-
High-Temperature Fasteners and Hardware
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 625?
Q: What kind of heat treatment does Inconel 625 require?
Q: What is the maximum operating temperature?
Q: What is the difference from Inconel 600?
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