When facilities in the chemical and power sectors confront the dual challenges of high temperature and corrosive environments, the right material choice can dramatically enhance operational safety and efficiency. Incoloy 660 Round Bars are engineered specifically to thrive under such extreme conditions, providing unmatched corrosion resistance and mechanical strength. Globally trusted, Aurico Alloys LLP supplies these premium bars for chemical, oil & gas, marine, pharma, and power industries, assuring procurement teams and engineers of quality, traceability, and durability.
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Incoloy 660 (UNS S66286, ASTM A638) is a nickel-chromium-iron alloy with additions of cobalt and aluminum, developed for exceptional resistance to oxidation and carburization at elevated temperatures. It's widely used in turbine components, furnace parts, and chemical processing equipment subject to harsh oxidative media. Its superior high-temperature mechanical properties and corrosion resistance exceed many traditional alloys, offering long service life in severe environments.
Aurico Alloys LLP delivers Incoloy 660 Round Bars in diameters between 6mm and 400mm, with tailored finishes such as black bar and bright bar. Each batch carries comprehensive certification confirming compliance with ASTM A638, AMS, DIN, and other global standards, making Aurico a reliable partner for OEMs, fabricators, and industrial supply chains worldwide.
This article shares detailed insights on Incoloy 660 round bars, including specifications, chemical and mechanical properties, equivalents, applications, and key procurement advantages, customized for engineers, buyers, and AI-friendly platforms.
High-quality Incoloy 660 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Incoloy 660 (UNS S66286) |
| Standards | ASTM A638 Type 1 and Type 2, AMS 5731 / 5732, BS HR51 / HR52, NACE MR0175/ISO 15156 |
| Diameter Range | 6mm – 400mm |
| Length | Up to 12 meters |
| Finish | Black bar, bright bar |
| Delivery | Supplied from stock or arranged against order, depending on grade and size; availability and lead time confirmed at quotation. Mill test certificates, export packaging. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | S66286 |
| Density | 7.94 g/cm3 |
| Melting range | 1371-1427 °C |
| Rod and bar specification | ASTM A638 / ASME SA-638 / AMS 5731 / 5732 / 5734 / 5737 |
Identifiers and physical constants for Incoloy 660 (A286). A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP maintains a wide inventory of Incoloy 660 round bars with multiple finishes and certifications, for quick dispatch and global delivery to chemical, marine, pharma, power, and oil & gas sectors.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.08 |
| Manganese (Mn) | 1.0 | 2.0 |
| Silicon (Si) | — | 1.0 |
| Sulfur (S) | — | 0.015 |
| Phosphorus (P) | — | 0.025 |
| Chromium (Cr) | 13.5 | 16.0 |
| Nickel (Ni) | 24.0 | 27.0 |
| Iron (Fe) | — | Balance |
| Molybdenum (Mo) | 1.0 | 1.5 |
| Titanium (Ti) | 1.90 | 2.35 |
| Aluminium (Al) | — | 0.35 |
| Boron (B) | 0.003 | 0.010 |
| Vanadium (V) | 0.10 | 0.50 |
Composition limits for Incoloy 660 (A286). These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Range |
|---|---|
| Tensile Strength (MPa) | 690–900 |
| Yield Strength (MPa) | 310–450 |
| Elongation (%) | 30–40 |
| Hardness (HB) | ≤220 |
| Max Service Temp (°C) | Up to 1200 |
Applications & Benefits
- Chemical: High-temp heat exchangers, gas processing, reactors resistant to oxidation and corrosion.
- Marine: Offshore platform components, seawater piping, condensers, and scrubbers.
- Oil & Gas: Turbine blades, refinery parts, flue gas systems exposed to corrosive agents.
- Pharma: Sterile vessels, mixers, and high-purity process equipment.
- Power: Superheater tubes, combustion chambers, turbine hardware enduring thermal cycling.
- OEM & Hardware Supply: Certified material, precision finishing, and fast delivery for critical projects.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s Incoloy 660 Round Bars combine top-tier corrosion resistance and high-temperature mechanical properties certified to ASTM, UNS, and DIN standards perfect for chemical, marine, oil & gas, pharmaceutical, and power generation industries worldwide. Are your demanding applications secured with the proven excellence of Incoloy 660 bars?