Products Features
Excellent corrosion resistance.
It exhibits outstanding corrosion resistance in sulfuric acid, phosphoric acid, nitric acid, and mixed acid media, particularly suitable for hot sulfuric acid environments. The addition of copper significantly enhances tolerance to reducing acids.
Excellent resistance to chloride ion stress corrosion cracking.
The nickel-iron-chromium matrix, combined with a stable austenitic structure, provides superior resistance to stress corrosion cracking in chloride-containing environments, outperforming conventional stainless steels such as 304 and 316.
Good machining and welding performance.
It can be welded using conventional welding processes (such as TIG, MIG, and manual arc welding) without requiring special post-weld heat treatment. Suitable for manufacturing chemical equipment such as tower vessels, storage tanks, heat exchangers, flanges, valves, and piping systems.
Technical Specifications
Chemical Composition
|
Element |
Standard Requirements |
Notes |
|
Ni |
32.0 - 38.0% |
Matrix elements that provide corrosion resistance and austenitic stability |
|
Cr |
19.0 - 21.0% |
Provide antioxidant and corrosion resistance capabilities |
|
Fe |
Surplus (approximately 35-42%) |
Structural support to reduce costs |
|
Mo |
2.0 - 3.0% |
Enhance resistance to pitting and crevice corrosion |
|
Cu |
3.0 - 4.0% |
Enhance resistance to corrosive acids such as sulfuric acid |
|
C |
≤ 0.07% |
Control the carbon content to prevent intergranular corrosion |
|
Si |
≤ 1.00% |
Oxygen absorber |
|
Mn |
≤ 2.00% |
Deoxidizer, improve hot working properties |
|
P |
≤ 0.045% |
Impurity elements |
|
S |
≤ 0.035% |
Prevent hot brittleness |
Physical Properties
|
Property |
Value/Range |
Test Conditions |
|
Density |
8.08 g/cm³ |
Room temperature (20°C) |
|
Melting Point |
1350 - 1400°C |
- |
|
Coefficient of Thermal Expansion (20-100°C) |
15.1 × 10⁻⁶ /K |
- |
Mechanical Properties (Annealed Condition, Typical Values)
|
Property |
Typical Value |
Specification |
|
Tensile Strength |
≥ 550 MPa |
ASTM B463 |
|
Yield Strength |
≥ 240 MPa |
ASTM B463 |
|
Elongation |
≥ 30% |
ASTM B463 |
|
Hardness |
≤ 85 HRB |
- |
High-temperature performance
Below 400°C, the alloy still maintains good mechanical properties and corrosion resistance.
Long-term Temperature Range
Recommended -200°C to 400°C.
Maximum Intermittent Heat Resistance: Up to 540°C.
Oxidation Resistance: Exhibits good oxidation resistance below 400°C.
Corrosion Resistance: It performs excellently in strongly corrosive media such as sulfuric acid, phosphoric acid, and nitric acid, with better resistance to pitting and crevice corrosion than 316 stainless steel.
Application Fields
-
Chemical process equipment (reactors, towers, storage tanks)
-
Heat exchangers and condensers (tube bundles, tube sheets)
-
Production facilities for sulfuric acid, phosphoric acid, and nitric acid
-
Food processing equipment (acid-contact food contact parts)
-
Pharmaceutical equipment (reaction kettles, pipelines)
-
Offshore engineering (seawater cooling systems, pumps and valves)
-
Pollution control equipment (scrubber towers, flue gas desulfurization systems)
-
Petrochemical pipelines and pipe fittings
-
Flanges, valves, and fasteners
-
Evaporators, crystallizers, and filtration equipment
Delivery and Customization
We offer flexible and reliable supply chain solutions to ensure you receive Incoloy 020 materials that perfectly match your project requirements.
|
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 Φ10-300mm |
Thickness: 0.1 – 3.0 mm |
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, and various heat treatment conditions |
Large-diameter thick-walled pipes, special alloy composition; Pipe end processing (beveling, fixed length) |
Different hardness conditions, special heat treatments (stabilization treatment, grain size control), acid-washed surfaces, electrolytic polishing, coatings, or special protective films |
Special surface treatment, precision drawing |
Why Choose Us? - Reliable engineering technology. Dependable delivery.
We are not just a supplier, but a trusted materials partner for you 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 Incoloy 020?
Q: What heat treatment is required for Incoloy 020?
Q: What is the maximum operating temperature?
Q: How is the sulfuric acid resistance?
Q: What is the difference from Inconel 625?
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