What is the high temperature resistance of Incoloy 825 bars and what is the price

2026-03-17

Incoloy 825 is renowned for its excellent corrosion resistance, but its performance at elevated temperatures is also a significant characteristic. The alloy is designed to maintain good mechanical properties and resist oxidation and other forms of high-temperature corrosion up to a certain point. However, it is not classified as a high-strength superalloy like Inconel 625 or 718 for extreme temperatures. Understanding its high-temperature capabilities is essential for applications where both corrosion resistance and exposure to heat are factors, such as in chemical and petrochemical processing. The price of Incoloy 825 bars is influenced by several dynamic market factors, with the cost of raw materials like nickel being the primary driver.

Table of Contents Hide

1 High Temperature Resistance of Incoloy 825 Bars

2 Price Determinants for Incoloy 825 Bars

3 Reference Price Ranges

4 Incoloy 825 Bar Supply from Shanghai NC Metal Materials Co., Ltd.

5 Frequently Asked Questions

Incoloy 825

High Temperature Resistance of Incoloy 825 Bars

Incoloy 825 offers good structural stability and resistance to oxidation at elevated temperatures. Its high nickel and chromium content provide a defense against oxidizing environments, while the molybdenum contributes to its strength. The alloy is commonly used in applications where service temperatures range from ambient up to about 1000°F (540°C). It maintains reasonable strength within this range and resists scaling. However, for prolonged exposure above this temperature, especially in the most demanding environments, alloys specifically designed for high-temperature creep strength are often recommended. The table below outlines its typical high-temperature property retention.

Note: These are approximate values and can vary based on specific product form and testing conditions. Data compiled from typical alloy literature.
Temperature (°F)	Temperature (°C)	Tensile Strength (approximate, ksi)	0.2% Yield Strength (approximate, ksi)
Room Temperature	20	85-100	35-50
600	315	75-90	28-40
800	425	70-85	27-38
1000	540	60-75	25-35
1200	650	40-55	20-28

Oxidation resistance is another key aspect of its high-temperature performance. Incoloy 825 forms a stable, adherent oxide layer that protects the underlying metal from further attack in air and combustion atmospheres. This makes it suitable for components like heat exchanger tubing, furnace parts, and process piping that operate at moderately high temperatures. The standard for Incoloy 825 bar ensures that its composition supports this resistance. For applications specifically requiring resistance to high-temperature sulfur-containing gases, the alloy’s performance is also quite good due to its nickel and chromium balance.

Incoloy 825

Price Determinants for Incoloy 825 Bars

The price of Incoloy 825 bars is not fixed and fluctuates based on a variety of market and product-specific factors. As a nickel-based alloy, its cost is highly sensitive to the LME (London Metal Exchange) nickel price. Other alloying elements like molybdenum and chromium also contribute significantly to the overall material cost. Beyond raw materials, the manufacturing process, dimensions, and quantity of the bar ordered play a crucial role in determining the final price. Shanghai NC Metal Materials Co., Ltd. can provide current pricing based on these factors.

Price Factor	Description of Influence on Price
Raw Material Costs	Prices of nickel, molybdenum, and chromium are the largest cost components. Increases in LME nickel prices directly lead to higher alloy prices.
Bar Size (Diameter/Thickness)	Larger diameter bars often require more intensive forging or rolling, and may have different yields, potentially increasing the price per kg compared to smaller, more common sizes.
Quantity Ordered	Larger volume orders benefit from economies of scale, typically resulting in a lower price per kilogram. Smaller, custom quantities usually command a premium.
Surface Finish & Tolerance	Cold-finished bars with precision tolerances and smooth surfaces are more expensive to produce than hot-rolled black bars, and this is reflected in their price.
Certifications & Testing	Requirements for additional testing (e.g., ultrasonic testing, PMI) or specific certifications (e.g., 3.1 material certificates) add to the overall cost of the product.

Reference Price Ranges

The following table provides reference price ranges for Incoloy 825 bars based on common forms and sizes. It is crucial to understand that these are indicative estimates only and do not constitute a firm offer. Actual market prices can vary. For a precise and current quotation tailored to your specific requirements, Shanghai NC Metal Materials Co., Ltd. is a reliable source.

Bar Type	Size Range (mm)	Reference Price Range (USD/kg)	Typical Market Condition
Hot-Rolled Round Bar	20 – 100	$28 – $38	Annealed, black or pickled finish
Cold-Finished Round Bar	10 – 50	$32 – $45	Annealed, precision ground or turned
Flat Bar / Plate Bar	Variable thickness/width	$30 – $42	Annealed, sheared or saw cut edges

Incoloy 825 Bar Supply from Shanghai NC Metal Materials Co., Ltd.

Shanghai NC Metal Materials Co., Ltd. is a specialized supplier of high-performance nickel alloys, including a comprehensive range of Incoloy 825 bars. They understand the importance of both material properties and cost. Their team can provide technical guidance on the high-temperature suitability of Incoloy 825 for your application and offer competitive pricing based on current market conditions. Shanghai NC Metal Materials Co., Ltd. ensures that all supplied bars meet the required international standards and are traceable to their origin.

Frequently Asked Questions

At what temperature does Incoloy 825 start to lose significant strength?
Incoloy 825 begins to show a more pronounced decrease in its mechanical strength above approximately 1000°F (540°C). While it maintains good oxidation resistance up to higher temperatures, its load-bearing capacity, particularly its creep strength, diminishes. For applications requiring sustained structural integrity above this range, alloys specifically designed for high-temperature service, like Inconel 625, are often more suitable. The standard for Incoloy 825 bar defines its properties for use primarily in corrosive environments up to moderate temperatures.

Is Incoloy 825 resistant to oxidation at 1200°F (650°C)?
Yes, Incoloy 825 exhibits good resistance to oxidation at temperatures up to at least 1200°F (650°C). The chromium in the alloy forms a protective chromium oxide scale that resists further oxidation in air and combustion atmospheres. However, its mechanical strength at this temperature is significantly reduced compared to its room temperature values. Therefore, while the surface may remain intact, the component would not be suitable for high-stress applications at this temperature. The high-temperature standard for this alloy focuses more on environmental resistance than extreme strength.

Why is the price of Incoloy 825 bar so variable?
The primary reason for price variability is its dependence on the commodity markets for its main alloying elements, particularly nickel. The London Metal Exchange (LME) nickel price fluctuates daily based on global supply and demand. Molybdenum and chromium prices also contribute. Additionally, fabrication costs, energy prices, and global demand from industries like oil and gas and chemical processing can cause shifts in the market price. Therefore, contacting a supplier like Shanghai NC Metal Materials Co., Ltd. for a current quote is always the most accurate way to determine the price.