Products Features
Outstanding Corrosion Resistance
It exhibits excellent corrosion resistance to strong acids such as sulfuric acid, phosphoric acid, nitric acid, and mixed acids. Additionally, it demonstrates good resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking in chloride-containing environments, with performance far exceeding that of ordinary stainless steel.
Good Desensitization Performance
By optimizing the chemical composition, the intergranular corrosion sensitivity has been significantly reduced. It maintains good corrosion resistance even in the welded condition, making it suitable for chemical equipment and piping systems that require welding fabrication.
Excellent Machining and Welding Properties
It exhibits excellent cold and hot working properties, allowing it to be formed and welded using conventional processes. It is suitable for manufacturing various forms such as plates, strips, bars, wires, tubes, and forgings, meeting the requirements of complex industrial applications.
Technical Specifications
Chemical Composition
|
Element |
Standard Requirements |
Notes |
|
Ni |
≥ 44.0% |
Matrix elements that provide corrosion resistance |
|
Cr |
21.0 - 23.5% |
Provide antioxidant and corrosion resistance capabilities |
|
Fe |
18.0 - 21.0% |
Structural support to reduce costs |
|
Mo |
5.5 - 7.5% |
Enhance resistance to reducing media and pitting corrosion |
|
Cu |
1.5 - 2.5% |
Enhance resistance to corrosion by reducing acids such as sulfuric acid and phosphoric acid |
|
Nb+Ta |
1.75 - 2.50% |
Stabilizing elements to prevent intergranular corrosion |
|
C |
≤ 0.050% |
Strict control to reduce intergranular corrosion sensitivity |
|
Si |
≤ 0.50% |
Oxygen absorber |
|
Mn |
≤ 1.00% |
Deoxidizer, improve hot working properties |
|
P |
≤ 0.040% |
Impurity elements |
|
S |
≤ 0.030% |
Prevent hot brittleness |
Physical Properties
|
Property |
Value/Range |
Test Conditions |
|
Density |
8.14 g/cm³ |
Room temperature (20°C) |
|
Melting Point |
1330 - 1380 °C |
- |
|
Specific Heat Capacity |
450 J/kg·K |
20°C |
Mechanical Properties (Solution Annealed Condition, Typical Values)
|
Property |
Typical Value |
Specification |
|
Tensile Strength |
≥ 550 MPa |
ASTM B462 |
|
Yield Strength |
≥ 240 MPa |
ASTM B462 |
|
Elongation |
≥ 30% |
ASTM B462 |
|
Hardness |
≤ 85 HRB |
- |
High-temperature Performance
Maintains good mechanical and corrosion-resistant properties at 500°C
Long-Term Operating Temperature Range: It is recommended that the long-term operating temperature range be -200°C to 400°C.
Maximum intermittent temperature resistance: Up to 500°C.
Antioxidant properties: It exhibits good antioxidant capability below 400°C.
Application Areas
-
Chemical processing equipment (sulfuric acid, phosphoric acid, nitric acid concentration equipment)
-
Pollution control systems (flue gas desulfurization, waste incineration)
-
Offshore engineering (seawater pipelines, pumps, valves, fasteners)
-
Oil and gas field equipment for acidic environments (H₂S, CO₂ containing environments)
-
Nuclear power systems (coolant pipelines, tanks)
-
Heat exchangers
-
Fertilizer production equipment (diammonium phosphate, ammonium nitrate)
-
Metal surface treatment equipment (acid pickling, electroplating)
-
High-temperature fasteners and hardware
-
Chemical environments with chlorine and fluorine media
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 G-3?
Q: What kind of heat treatment does Inconel G-3 require?
Q: What is the maximum operating temperature?
Q: What is the difference from Inconel 625?
Hot Tags: inconel g-3, China inconel g-3 manufacturers, suppliers, factory
