High Standard Stainless Steel With Strict Inspection
Hastelloy C-276
Complete Technical Data Sheet for Hastelloy C-276 Chemical Composition Mechanical Properties Physical Properties International Standards & Grade Equivalents Key Applications of Hastelloy C-276 Chemical Processing Equipment Hastelloy C-276 is widely utilized in reactors, heat exchangers, and piping systems within chemical plants due to its resistance to highly corrosive substances such as sulfuric and hydrochloric acids. […]
Description
Grade Hastelloy C-276 Product Specifications
Nickel Alloy Plates
Our Hastelloy C-276 plates deliver exceptional flatness, superior corrosion resistance, and uniform thickness, making them ideal for high-integrity fabrication in chemical and marine applications.
Nickel Alloy Bars/Rods
Precision bars and rods offer outstanding strength and reliability, ideal for demanding conditions like valve manufacturing, pumps, and structural components.
Nickel Alloy Tubes
Tubes are designed for rigorous environments, ensuring high corrosion resistance and consistent dimensional tolerances for heat exchangers, condensers, and critical fluid transport systems.
Nickel Alloy Wire
Hastelloy C-276 wire offers excellent formability and stability, optimized for welding, mesh production, and electrical applications where both strength and chemical resistance are required.
Complete Technical Data Sheet for Hastelloy C-276
| Element | Composition (%) |
|---|---|
| Nickel | 57.0-63.0 |
| Chromium | 14.5-16.5 |
| Molybdenum | 15.0-17.0 |
| Tungsten | 3.0-4.5 |
| Iron | 5.0 max |
| Cobalt | 2.5 max |
| Manganese | 1.0 max |
| Silicon | 0.08 max |
| Carbon | 0.01 max |
| Phosphorus | 0.04 max |
| Sulfur | 0.03 max |
| Property | Value |
|---|---|
| Density | 8.89 g/cm³ |
| Tensile Strength | 758 MPa |
| Yield Strength | 345 MPa |
| Elongation | 40% |
| Modulus of Elasticity | 207 GPa |
| Hardness (Rockwell B) | 85 |
| Melting Point | 1370-1390°C |
| Thermal Conductivity | 11.4 W/m·K |
| Electrical Resistivity | 0.08 μΩ·m |
| Property | Value |
|---|---|
| Alloy | Hastelloy C-276 |
| UNS Number | N10276 |
| Composition | Nickel, Chromium, Molybdenum, Tungsten |
| Corrosion Resistance | Excellent resistance to pitting and crevice corrosion |
| Stress Corrosion Cracking | High resistance to stress corrosion cracking |
| Oxidation Resistance | Outstanding resistance to oxidizing atmospheres |
| Temperature Limit | 2050°F |
| Welding | Compatible with MIG and TIG welding |
| Applications | Pulp and paper, chemical processing, petrochemical, pollution control |
| Resistance to Chemicals | Excellent resistance to ferric and cupric chlorides, hypochlorite, and chlorine dioxide solutions |
| International Standard | Grade Equivalent |
|---|---|
| ASTM B575 | Hastelloy C-276 |
| ASTM B619 | Alloy C-276 |
| ASME SB-575 | Hastelloy C-276 Alloy |
| UNS N10276 | C276 |
| EN 2.4819 | Nickel-Chromium-Molybdenum Alloy |
| BS 3100 | Nickel Alloy |
| ISO 15156 | Corrosion Resistant Alloy |
| ASTM A240 | Hastelloy® C-276 |
| ASTM A312 | Wrought Nickel Alloy |
| ASTM B366 | Filler Metal for Hastelloy C-276 |
Benefits of Using Hastelloy C-276
Exceptional Resistance to Corrosive Environments
Hastelloy C-276 is renowned for its ability to withstand some of the most aggressive chemical environments encountered in industrial applications. This alloy resists a wide variety of corrosive agents, including strong acids, chlorine-containing compounds, and oxidizing and reducing media. Its robust performance offers reliable protection against pitting, crevice corrosion, and stress corrosion cracking, making it a preferred choice for installations where prolonged exposure to harsh chemicals can otherwise compromise structural integrity and safety.
Superior Mechanical Properties in Extreme Conditions
Engineered to maintain consistent performance under a wide range of temperatures, Hastelloy C-276 exhibits impressive strength and durability both at extremely high and low temperatures. This material delivers reliable operation in thermal cycling environments and is especially valued in processes that undergo frequent start-ups and shutdowns. Its mechanical properties ensure longevity, helping to reduce maintenance cycles and operational interruptions, which is a critical advantage in cost-sensitive, high-output industries.
Versatility and Adaptability for Complex Operations
One of Hastelloy C-276’s defining features is its adaptability. It is easily fabricated into a wide variety of forms, such as plates, tubes, rods, and wire, all while retaining its resistance properties. The alloy’s low carbon content minimizes carbide precipitation during welding, preserving corrosion resistance even at the joints. This versatility makes Hastelloy C-276 suitable for a broad spectrum of components—from intricate heat exchangers to large-scale reactors—offering engineers flexibility in system design and retrofitting.
Enhanced Safety and Regulatory Compliance
Utilizing Hastelloy C-276 supports safer and more compliant industrial operations. Its inherent durability minimizes the risk of material failures and leaks, directly contributing to workplace safety and a reduced likelihood of environmental contamination. Additionally, many regulatory standards specify the use of high-performance alloys like C-276 for critical applications; selecting this grade helps ensure adherence to global codes and industry certifications, streamlining approval processes and safeguarding operational reputations.
Key Applications of Hastelloy C-276
Chemical Processing Equipment
Hastelloy C-276 is widely utilized in reactors, heat exchangers, and piping systems within chemical plants due to its resistance to highly corrosive substances such as sulfuric and hydrochloric acids. This alloy helps maintain system integrity and extends equipment service life under aggressive process conditions.
Pollution Control Systems
The alloy is essential in flue gas desulfurization units, stack liners, and related components that require reliable performance in environments with acidic condensates and high temperatures. Its corrosion resistance ensures operational stability and reduces maintenance needs in environmental control systems.
Oil, Gas, and Marine Industries
Hastelloy C-276 is the material of choice for equipment and components that encounter harsh offshore and subsea environments, including sour gas wells and saltwater applications. Its mechanical strength and resistance to localized corrosion support critical infrastructure in these demanding sectors.
What Our Clients Say
“Hastelloy C-276 has proven essential in our chemical processing operations. The material’s exceptional corrosion resistance and mechanical integrity have significantly reduced our maintenance frequency, leading to a measurable increase in overall plant efficiency.”
Alex Chen
Senior Procurement Manager
“We rely on Hastelloy C-276 for demanding marine applications because it consistently delivers outstanding performance in aggressive environments. Its adaptability and durability ensure long-term reliability for our most critical projects.”
Emily Davis
Lead Mechanical Engineer
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Frequently Asked Questions
What is Hastelloy C-276 primarily used for?
Hastelloy C-276 is ideal for applications requiring superior resistance to corrosion and aggressive chemical environments, such as chemical processing, pollution control, and marine engineering.
What are the key chemical elements in Hastelloy C-276?
This alloy is primarily composed of nickel, molybdenum, and chromium, with the addition of tungsten to enhance corrosion resistance.
How does Hastelloy C-276 perform in high-temperature environments?
Hastelloy C-276 maintains excellent mechanical properties and corrosion resistance across a wide temperature range, including both elevated and cryogenic conditions.
Is Hastelloy C-276 weldable?
Yes, Hastelloy C-276 can be welded using standard methods, with its low carbon content minimizing carbide precipitation and preserving corrosion resistance in welded structures.
What forms is Hastelloy C-276 available in?
The alloy is available in plates, sheets, bars, rods, tubes, pipes, and wires to suit various industrial needs.
What types of corrosion does Hastelloy C-276 resist?
It offers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, as well as protection against both oxidizing and reducing acids.
What industries benefit most from Hastelloy C-276?
Key industries include chemical processing, oil & gas, marine, aerospace, and pulp and paper, where operational reliability in harsh conditions is critical.
Can Hastelloy C-276 be used for sour gas applications?
Yes, it is frequently specified for sour gas well service and other harsh petroleum industry uses due to its superior resistance to hydrogen sulfide and chlorides.
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