In industries demanding materials capable of withstanding extreme environments—from corrosive chemicals to high temperatures—Hastelloy and Incoloy alloys often emerge as top contenders. While both belong to the nickel-chromium-molybdenum (Ni-Cr-Mo) family, their distinct compositions and properties cater to specialized applications. This blog explores their differences across composition, performance, applications, and cost, drawing insights from technical resources to offer a balanced perspective.
This paper will compare Hastelloy Alloy with the Incoloy, which will help you better understand the similarities and differences between the two materials and then choose the alloy that suits your needs. Please contact us or send the email to us. Also, you can place a button to fill out the form to get the price.
Overview of Hastelloy Steel and Incoloy Steel
Huaxiao Metal Materials Co., Ltd. stands as a leading Alloy Supplier dedicated to empowering global industries with premium metal solutions. Leveraging decades of expertise, we specialize in delivering high-performance stainless steel, nickel-based alloys, and specialty metals tailored for aerospace, chemical processing, energy, and manufacturing sectors. Our company has the good quality hastelloy and incoloy in China and the price is suitable and afforable.
What is Hastelloy?
What is Incoloy?
Hastelloy (e.g., C-276, C-22, B-2) is a nickel-based alloy with a focus on molybdenum (13–17%) and chromium (14–26%), supplemented by tungsten or cobalt in some grades. This blend grants it exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking in harsh acidic environments.
Incoloy (e.g., 800, 825, 925) leans toward iron-nickel-chromium matrices, often incorporating copper (e.g., Incoloy 825) or aluminum (e.g., Incoloy 925). This composition balances corrosion resistance with mechanical strength, making it suitable for elevated temperatures and oxidizing conditions.
Understanding Hastelloy vs. Incoloy differences prevents costly material mismatches in corrosive and high-temperature applications. While Hastelloy offers unparalleled chloride resistance, Incoloy provides cost-effective performance in oxidizing environments. Our company has the various hastelloy steel and incoloy steel in China for sales. Next, we will compare Hastelloy C-276, Hastelloy C-22, Incoloy 825, and Incoloy 800HT typical alloys analysis.
| Element | Hastelloy C-276 | Hastelloy C-22 | Incoloy 825 | Incoloy 800HT |
|---|---|---|---|---|
| Ni (Nickel) | 52-58 | 56-63 | 38-46 | 30-35 |
| Cr (Chromium) | 14.5-16.5 | 20-22.5 | 19.5-23.5 | 19-23 |
| Mo (Molybdenum) | 15-17 | 12.5-14.5 | 2.5-3.5 | – |
| Fe (Iron) | 4-7 | 2-6 | ≥22 | ≥39.5 |
| Cu (Copper) | – | – | 1.5-3.0 | 0.75-1.5 |
| Ti (Titanium) | – | – | 0.6-1.2 | 0.15-0.6 |
| Al (Aluminum) | – | – | 0.2-0.8 | 0.15-0.6 |
| W (Tungsten) | 3-4.5 | 2.5-3.5 | – | – |
| C (Carbon) | ≤0.02 | ≤0.015 | ≤0.05 | ≤0.10 |
Key Differences:
Hastelloy: High Mo (12-17%) + W for extreme corrosion resistance.
Incoloy: Higher Fe (22-40%) + Cu/Ti for cost efficiency and oxidation resistance.
Our company’s alloys are of high quality and provide customized services to meet your needs. If you have any questions about alloys, you can press the button to fill out the form and write down your questions. We will reply to you with a professional solution as soon as possible within 24 hours. Welcome to contact us and send the email to us.
Physical Properties of Hastelloy and Incoloy
| Property | Hastelloy C-276 | Hastelloy C-22 | Incoloy 825 | Incoloy 800HT |
|---|---|---|---|---|
| Density (g/cm³) | 8.89 | 8.69 | 8.14 | 7.95 |
| Melting Range (°C) | 1325-1370 | 1350-1390 | 1370-1400 | 1350-1400 |
| Thermal Conductivity (W/m·K) | 10.2 | 11.1 | 11.7 | 12.0 |
| Electrical Resistivity (μΩ·m) | 130 | 125 | 1.12 | 1.02 |
| CTE (10⁻⁶/°C, 20-100°C) | 12.6 | 12.8 | 14.2 | 14.4 |
| Magnetic Permeability | 1.0006 | 1.0008 | 1.05 | 1.02 |
Mechanical Properties of Hastelloy and Incoloy
| Property | Hastelloy C-276 | Hastelloy C-22 | Incoloy 825 | Incoloy 800HT |
|---|---|---|---|---|
| Tensile (MPa) | 690-895 | 690-830 | 580-690 | 520-620 |
| Yield (MPa) | 283-415 | 310-410 | 240-410 | 210-310 |
| Elongation (%) | 40-55 | 45-55 | 30-45 | 30-40 |
| Hardness (HV) | 170-220 | 180-230 | 150-200 | 130-180 |
| Impact (J @ 20°C) | 150-220 | 160-240 | 100-130 | 120-150 |
| Creep Strength (MPa @ 600°C/1000h) | 180 | 160 | 75 | 90 |
Performance Notes:
Hastelloy: 2X higher creep strength than Incoloy at 600°C.
Incoloy: Better ductility for forming operations.
Hastelloy and Incoloy Grades
Hastelloy and incoloy have many advantages and have different applications in various industries and fields. The use of alloys is very extensive, and the advantages of alloys are also well-known. If you have the need to purchase alloys, please feel free to consult our company. As a leading alloy supplier in China, our alloy quality is guaranteed and we provide a complete set of express delivery services. Welcome to inquire the lastest price about the alloy products.
Hastelloy Equivalent Grades
| Alloy | UNS Number | ASTM Standard | EN (Europe) | JIS (Japan) | GB (China) | Other Names |
|---|---|---|---|---|---|---|
| Hastelloy C-276 | N10276 | ASTM B575 | NiMo16Cr15W (2.4819) | NW 0276 | NS3304 | Alloy C-276, W.Nr. 2.4819 |
| Hastelloy C-22 | N06022 | ASTM B574 | NiCr21Mo14W (2.4602) | NW 6022 | NS3308 | Alloy 22, W.Nr. 2.4602 |
| Hastelloy B-2 | N10665 | ASTM B335 | NiMo28 (2.4617) | NW 0065 | NS3202 | Alloy B-2, W.Nr. 2.4617 |
| Hastelloy X | N06002 | ASTM B435 | NiCr22FeMo (2.4665) | NW 6002 | GH3536 | Alloy X, W.Nr. 2.4665 |
| Hastelloy C-2000 | N06200 | ASTM B619 | NiCr23Mo16Cu (2.4675) | – | NS3405 | Alloy C-2000, W.Nr. 2.4675 |
| Hastelloy G-30 | N06030 | ASTM B581 | NiCr30FeMo (2.4603) | – | NS3408 | Alloy G-30, W.Nr. 2.4603 |
Huaxiao Metal has these materials and models of metals. If you need customized alloy products, our company can also provide customized services to create the alloy products you need. I believe you will be satisfied with our products and services. Looking forward to your inquiry by place the button and fill in the form.
Incoloy Equivalent Grades
| Alloy | UNS Number | ASTM Standard | EN (Europe) | JIS (Japan) | GB (China) | Other Names |
|---|---|---|---|---|---|---|
| Incoloy 800 | N08800 | ASTM B409 | X10NiCrAlTi32-21 (1.4876) | NCF 800 | GH1180 | Alloy 800, W.Nr. 1.4876 |
| Incoloy 800H | N08810 | ASTM B408 | X10NiCrAlTi32-20 (1.4958) | NCF 800H | GH1181 | Alloy 800H, W.Nr. 1.4958 |
| Incoloy 800HT | N08811 | ASTM B409 | X10NiCrAlTi32-20 (1.4959) | NCF 800HT | GH1182 | Alloy 800HT, W.Nr. 1.4959 |
| Incoloy 825 | N08825 | ASTM B424 | NiCr21Mo (2.4858) | NCF 825 | NS142 | Alloy 825, W.Nr. 2.4858 |
| Incoloy 925 | N09925 | ASTM B805 | NiCr21Mo3TiAl (2.4852) | – | NS3102 | Alloy 925, W.Nr. 2.4852 |
| Incoloy 926 | N08926 | ASTM B625 | X1NiCrMoCuN25-20-7 (1.4529) | – | NS3904 | Alloy 926, W.Nr. 1.4529 |
Hastelloy and Incoloy of Advantages
Huaxiao Metal Manufacturer provides all kinds of alloy products and the price is suitable and afforrable for you, Hastelloy and incoloy have many advantages and have different applications in various industries and fields. The use of alloys is very extensive, and the advantages of alloys are also well-known. If you have the need to purchase alloys, please feel free to consult our company. As a leading alloy supplier in China, our alloy quality is guaranteed and we provide a complete set of express delivery services. Welcome to inquire the lastest price about the alloy products by through the place the Green button and send the list after you write your questions or your alloy solutions.
- Good Corrosion Resistance in Various Environments:
- Incoloy alloys offer good corrosion resistance in a variety of environments, including aqueous solutions, high-temperature gases, and certain acidic media. This makes them suitable for applications in the chemical, oil and gas, and power generation industries.
- High-Temperature Oxidation Resistance:
- Incoloy alloys form a protective oxide layer at high temperatures, which prevents further oxidation and corrosion. This property extends their service life in high-temperature applications.
- Good Mechanical Properties at Elevated Temperatures:
- Incoloy alloys maintain their strength and toughness at elevated temperatures, making them suitable for use in high-temperature components such as boiler tubes, heat exchangers, and furnace parts.
- Cost-Effectiveness:
- Compared to some other high-performance alloys, Incoloy alloys often offer a more cost-effective solution without compromising on performance. This makes them a popular choice in industries where cost is a significant consideration. Incoloy Metals has the various applications and the use of many industries, the incoloy steel has the good properties in heating.
- Excellent Corrosion Resistance:
- Hastelloy alloys are renowned for their exceptional resistance to a wide range of corrosive environments, including strong acids (such as sulfuric acid, hydrochloric acid), oxidizing agents, and chloride-containing solutions. This makes them ideal for use in chemical processing, petrochemical, and pollution control industries.
- High-Temperature Strength:
- Hastelloy alloys maintain their mechanical properties at elevated temperatures, making them suitable for applications in high-temperature environments, such as in heat exchangers, furnaces, and gas turbines.
- Good Weldability and Fabricability:
- Hastelloy alloys can be easily welded and fabricated into various shapes and sizes, allowing for the construction of complex components and structures. This versatility makes them popular in industries requiring customized solutions.
- Resistance to Stress Corrosion Cracking:
Hastelloy alloys exhibit excellent resistance to stress corrosion cracking, a type of corrosion that occurs under tensile stress in corrosive environments. This property enhances their durability and reliability in critical applications.
Hastelloy and Incoloy of Performance Differences
Corrosion Resistance: Battle Against Aggressive Media
- Hastelloy excels in reducing acids (e.g., sulfuric, hydrochloric) and chloride-rich environments. Its high molybdenum content forms a passive oxide layer, mitigating localized corrosion even at 200°C.
- Incoloy thrives in oxidizing environments (e.g., nitric acid, seawater) and mixed acid-chloride conditions. Copper additions in grades like 825 enhance resistance to sulfuric and phosphoric acids, while aluminum in 925 improves oxidation resistance.
High-Temperature Performance: Stability Under Stress
- Incoloy shines in high-temperature applications (up to 1000°C) due to its iron-nickel base, which retains strength and creep resistance. Grades like 800H are used in heat exchangers and furnace components.
- Hastelloy, while heat-resistant (up to 800°C), prioritizes corrosion resistance over extreme thermal stability. It may oxidize or lose ductility at temperatures beyond its optimal range.
Stress Corrosion Cracking (SCC) Resistance
| Alloy | Key Characteristics | SCC Resistance Mechanisms | Ideal Environments |
|---|---|---|---|
| Hastelloy | – Nickel-chromium-molybdenum base (e.g., C-276, C-22) with tungsten/cobalt in some grades – High molybdenum (13–17%) and chromium (14–26%) content – Superior in reducing acids (e.g., HCl, H2SO4) and chloride-rich media | – Passivating Cr-Mo oxide layers inhibit crack initiation – Mo/W enhance resistance to localized corrosion (pitting/crevices) – C-22 and C-276 resist SCC in wet Cl2, oxidizing acids, and mixed environments | – Chemical processing (reactors, pipelines) – Pollution control (flue gas scrubbers) – Marine/offshore applications (seawater exposure) |
| Incoloy | – Nickel-iron-chromium base (e.g., 825, 800HT) with copper/molybdenum additions – Balanced strength and corrosion resistance – Cost-effective for moderate corrosion | – Ni-Fe matrix resists SCC in oxidizing/mixed acids (e.g., HNO3, seawater) – Cu (e.g., Incoloy 825) improves sulfuric/phosphoric acid resistance – Ti/Al stabilization reduces weld decay risks | – High-temperature heat exchangers (up to 1,000°C) – Oil/gas production (sour service) – Nuclear reactors (core components) |
Huaxiao Metal Manufacturer provides all kinds of alloy products and the price is suitable and afforrable for you, welcome to inquiry and learn about the more details. If you have the alloy requirements, you can consult the details about the alloy products. Our company has the good quality hastelloy and incoloy in various shape and materials.
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Cost Price Comparison of Hastelloy and Incoloy Alloy
Hastelloy alloys are more expensive and may have limited availability in certain forms/sizes compared to Incoloy. However, Hastelloy’s superior corrosion resistance and performance in extreme environments justify the higher cost for many applications. On the other hand, Incoloy alloys offer a more cost-effective solution with widespread availability and shorter lead times, making them a popular choice for a broad range of industries where extreme corrosion resistance is not a primary requirement. Huaxiao Metal Manufacturer provides all kinds of alloy products and the price is suitable and afforrable for you, welcome to inquiry and learn about the more details.
Hastelloy is Premium performance, higher upfront cost. But, Incoloy is cheap and balanced performance.
Hastelloy Cost Overview
Higher Price: 45–120/kg due to high nickel (Ni) and molybdenum (Mo) content.
Grades:
*C-276*: 65–85/kg
*C-22*: 70–95/kg
X: 60–90/kg
Fabrication Costs:
Machining: 30–50% more expensive than stainless steel.
Welding: Requires specialized techniques (higher labor cost).
ROI: Justified for extreme corrosion (e.g., seawater, HCl) with 10–20+ years lifespan.
Incoloy Cost Overview
Lower Price: 25–60/kg due to higher iron (Fe) content.
Grades:
*825*: 30–50/kg
800HT: 25–45/kg
*925*: 40–60/kg
Fabrication Costs:
Machining: 10–20% easier than Hastelloy.
Welding: Standard methods (lower labor cost).
ROI: Ideal for moderate corrosion (e.g., sulfuric acid) with 8–15 years lifespan.
- Budget-friendly, balanced performance.
Cost Comparison
- Hastelloy
- Higher Material Cost: Hastelloy alloys are generally more expensive than Incoloy due to their higher nickel content (often over 50%) and the inclusion of specialized alloying elements such as molybdenum, chromium, and tungsten.
- Processing Costs: The manufacturing processes for Hastelloy, including melting, forging, and heat treatment, can be more complex and costly compared to Incoloy. This is due to the need for tighter control over chemical composition and microstructure to achieve the desired properties.
- Market Premium: Hastelloy alloys often command a premium in the market due to their reputation for performance in extreme environments. This premium can vary depending on the specific grade and supply dynamics.
- Incoloy
- Lower Material Cost: Incoloy alloys typically contain a lower percentage of nickel (around 30-35%) and rely more on iron as a base element. This, combined with a more balanced alloy composition, results in a lower material cost compared to Hastelloy.
- Cost-Effective Processing: The manufacturing processes for Incoloy are generally less complex and costly than those for Hastelloy. This makes Incoloy a more cost-effective option for applications where the extreme corrosion resistance of Hastelloy is not required.
- Competitive Pricing: Incoloy alloys are widely used in various industries, leading to a more competitive market with multiple suppliers offering similar products at competitive prices.
The choice between Hastelloy and Incoloy should be based on a detailed analysis of the specific application requirements, including cost, availability, and performance needs. You can click the button and send the email to us that we will reply to you early in 24 hours.
Hastelloy Metal Vs Incoloy Metal Applications
Hastelloy vs Incoloy alloys each offer unique advantages depending on the specific application requirements. Hastelloy excels in extremely corrosive environments, while Incoloy provides a more cost-effective solution with good corrosion and high-temperature resistance. The choice between the two should be based on a detailed analysis of the operating conditions, performance requirements, and budget constraints. Huaxiao Metal Manufacturer provides all kinds of alloy products and the price is suitable and afforrable for you, welcome to inquiry and learn about the more details.
- Chemical Processing Industry
- Hastelloy alloys are extensively used in the chemical processing sector due to their exceptional resistance to strong acids, oxidizing agents, and chloride-containing solutions. They are employed in the construction of reactors, heat exchangers, distillation columns, and piping systems that handle highly corrosive chemicals.
- Petrochemical Industry
- In the petrochemical industry, Hastelloy alloys are utilized in applications involving crude oil refining, gas processing, and the production of petrochemicals. Their resistance to sulfide stress cracking and other forms of corrosion makes them ideal for components exposed to hydrogen sulfide and other aggressive substances.
- Pollution Control and Waste Treatment
- Hastelloy alloys play a crucial role in pollution control and waste treatment facilities. They are used in scrubbers, incinerators, and other equipment that handle corrosive emissions and waste streams, helping to prevent environmental contamination.
- Aerospace and Defense
- The aerospace and defense sectors utilize Hastelloy alloys for their high-temperature strength and corrosion resistance. They are found in aircraft engines, rocket components, and military hardware that must withstand extreme conditions.
- Marine Engineering
Hastelloy alloys are also used in marine engineering applications, such as seawater desalination plants, offshore oil and gas platforms, and underwater pipelines. Their resistance to seawater corrosion and erosion ensures the longevity and reliability of these structures.
- Power Generation Industry
- Incoloy alloys are widely used in the power generation sector, particularly in boilers, superheaters, and heat recovery steam generators. Their high-temperature strength and oxidation resistance make them suitable for components exposed to high-pressure steam and corrosive combustion gases.
- Oil and Gas Industry
- In the oil and gas industry, Incoloy alloys are employed in downhole tubulars, wellhead equipment, and processing facilities. They withstand the harsh conditions encountered in oil and gas exploration and production, including high temperatures, pressures, and corrosive fluids.
- Chemical Processing and Petrochemicals
- Similar to Hastelloy, Incoloy alloys are also used in chemical processing and petrochemical applications, albeit in environments where the corrosion resistance requirements may be slightly less severe. Nuclear Power Industry
- In the nuclear power industry, Incoloy alloys are utilized in reactor components, steam generators, and other equipment that must withstand high radiation levels and corrosive coolant environments. Their combination of mechanical properties and corrosion resistance makes them suitable for these demanding applications.
- Automotive and Transportation
- Incoloy alloys also find applications in the automotive and transportation sectors, particularly in exhaust systems and catalytic converters. Their high-temperature strength and resistance to oxidation and corrosion contribute to the durability and performance of these components.
How to Choose Hastelloy and Incoloy Correctly?
Choose Hastelloy when the application is in extremely harsh corrosive environments such as those with strong reducing or oxidizing acids or chlorine – rich surroundings, like in severe chemical processing plants; it’s also ideal for ultra – high – temperature scenarios, for instance, in aerospace gas turbine components. Incoloy is the way to go for milder corrosive conditions, such as in some less – demanding heat exchangers, and for moderate high – temperature applications (e.g., certain power generation heat exchangers) where a good balance of performance and cost – effectiveness is needed.
Huaxiao Metal Supplier provides all kinds of shapes alloy products , hastelloy and incoloy have many applications. Welcome to click on the button above to fill out a simple form expressing your needs as a customer. We will have professional personnel to provide you with high-quality solutions.
- Hastelloy:
- Commonly used in chemical processing, petrochemical, pollution control, and aerospace industries where extreme corrosion resistance is required.
- Incoloy:
- Widely used in power generation, oil and gas, chemical processing, and marine engineering industries where a balance of corrosion resistance, high-temperature strength, and cost-effectiveness is needed.
Comparison of Properties: Here’s a summary of the key properties of Hastelloy C-276 and Incoloy 825:
| Property | Hastelloy C-276 | Incoloy 825 |
|---|---|---|
| Corrosion Resistance | Excellent | Good |
| High-Temperature Resistance | Good | Excellent |
| Strength | High | High |
| Fabrication | Difficult | Easier |
| Cost | Higher | Lower |
In conclusion, while both Hastelloy and Incoloy are high-performance alloys with exceptional properties, they differ significantly in terms of composition, corrosion resistance, and high-temperature properties. By understanding the differences and applications of these alloys, you can make an informed decision for your next project. Whether you’re in the chemical processing, oil and gas, or aerospace industry, choosing the right material can mean the difference between success and failure. Welcome to inquire the more details about the hastelloy and incoloy.
Huaxiao Metal Hastelloy and Incoloy Core Competitiveness
In the highly competitive landscape of metal materials, a company specializing in Hastelloy and Incoloy alloys must possess distinct core competencies to stand out and thrive. Below are the key competitive advantages and strengths that such a company can leverage:
1. Advanced Alloy Development and Customizatio
- Our company invests in robust research and development (R&D) to innovate and refine Hastelloy and Incoloy formulations. This enables the creation of tailored alloys that meet specific customer requirements, such as enhanced corrosion resistance, improved mechanical properties, or optimized thermal stability.
2. Superior Product Quality and Consistency
- Our company adheres to rigorous quality control measures at every stage of production, from raw material sourcing to final product inspection. This ensures that Hastelloy and Incoloy products meet or exceed international standards (e.g., ASTM, UNS, EN, DIN)..
3. Extensive Product Range and Inventory
- Our company offers a wide selection of Hastelloy and Incoloy grades, including standard and specialty variants, to cater to diverse industrial needs. This includes sheets, plates, bars, tubes, fittings, and custom-fabricated components.
4. Technical Expertise and Customer Support
- Our company employs experts in metallurgy and materials engineering who provide technical guidance, alloy selection assistance, and application-specific recommendations to customers.
5. Strong Supplier Relationships and Global Reach
- Reliable Supply Chain:
Our company cultivates strong partnerships with raw material suppliers, ensuring a stable and high-quality supply of nickel, chromium, molybdenum, and other critical elements. - Global Distribution Network:
With a well-established distribution network spanning multiple regions, the company can efficiently serve customers worldwide, offering timely deliveries and localized support.
