Global Eutectic Al-Si Alloy Market Growth 2025-2031

The global Eutectic Al-Si Alloy market size is predicted to grow from US$ 503 million in 2025 to US$ 679 million in 2031; it is expected to grow at a CAGR of 5.1% from 2025 to 2031.

Eutectic Al-Si alloy is an alloy with aluminum and silicon as the main components. At a specific silicon content (about 11%-13%), the alloy will precipitate α (Al) and β (Si) phases simultaneously during solidification to form a eutectic. This alloy has been widely used in aviation, transportation, construction, automobiles and other fields due to its good casting properties, moderate strength and hardness, wear resistance and corrosion resistance. Features: Eutectic structure: Eutectic Al-Si alloy forms a eutectic composed of α (Al) and β (Si) phases during solidification. This structure makes the alloy show a unique balance in mechanical properties, with both the lightness and toughness of aluminum and the hardness and wear resistance of silicon. Good casting properties: Eutectic Al-Si alloy has good fluidity and can fill complex mold cavities to form precisely shaped castings. Its low tendency to hot cracking helps reduce casting defects and improve casting quality. Moderate strength and hardness: Compared with pure aluminum, the strength and hardness of eutectic Al-Si alloy are significantly improved, but still maintain good toughness. This moderate mechanical property enables the alloy to maintain stable performance when subjected to a certain load. Good wear resistance and corrosion resistance: The addition of silicon particles improves the wear resistance of the alloy, making it perform well in some parts that need to withstand friction and wear. At the same time, eutectic Al-Si alloy also has a certain corrosion resistance and can maintain a long service life in some corrosive environments. Machinability: Although the hardness of eutectic Al-Si alloy is relatively high, it can still be machined by cutting, drilling and other machining operations after proper heat treatment. In addition, the alloy can also be processed and formed by welding, die casting and other processes. Thermal stability: Eutectoid Al-Si alloy can maintain good dimensional stability when the temperature changes, thanks to its low thermal expansion coefficient. Price advantage: Compared with other high-performance alloys, the price of eutectic Al-Si alloy is relatively moderate, making it more cost-effective in industrial applications. Environmental protection: As a metal material, eutectic Al-Si alloy has good recyclability and reusability. In the process of waste treatment, resources can be recycled and remelted to reduce environmental pollution.

Global key players of Eutectic Al-Si Alloy include RUSAL, Resonac, Norsk Hydr. Among them, RUSAL has a global share of about 40%. North America is the largest market, and has a share about 42%, followed by Europe and Asia-Pacific with share 34% and 21%, separately. In terms of product type, Silicon content＜12% is the largest segment, accounting for a share of 71%. In terms of application, Automotive is the largest field with a share about 50 percent.

LP Information, Inc. (LPI) ' newest research report, the “Eutectic Al-Si Alloy Industry Forecast” looks at past sales and reviews total world Eutectic Al-Si Alloy sales in 2024, providing a comprehensive analysis by region and market sector of projected Eutectic Al-Si Alloy sales for 2025 through 2031. With Eutectic Al-Si Alloy sales broken down by region, market sector and sub-sector, this report provides a detailed analysis in US$ millions of the world Eutectic Al-Si Alloy industry.

This Insight Report provides a comprehensive analysis of the global Eutectic Al-Si Alloy landscape and highlights key trends related to product segmentation, company formation, revenue, and market share, latest development, and M&A activity. This report also analyzes the strategies of leading global companies with a focus on Eutectic Al-Si Alloy portfolios and capabilities, market entry strategies, market positions, and geographic footprints, to better understand these firms’ unique position in an accelerating global Eutectic Al-Si Alloy market.

This Insight Report evaluates the key market trends, drivers, and affecting factors shaping the global outlook for Eutectic Al-Si Alloy and breaks down the forecast by Type, by Application, geography, and market size to highlight emerging pockets of opportunity. With a transparent methodology based on hundreds of bottom-up qualitative and quantitative market inputs, this study forecast offers a highly nuanced view of the current state and future trajectory in the global Eutectic Al-Si Alloy.

This report presents a comprehensive overview, market shares, and growth opportunities of Eutectic Al-Si Alloy market by product type, application, key manufacturers and key regions and countries.

Segmentation by Type:
Silicon content＜12%
Silicon content ≥12%

Segmentation by Application:
Aerospace
Automotive
Others

This report also splits the market by region:
Americas
United States
Canada
Mexico
Brazil
APAC
China
Japan
Korea
Southeast Asia
India
Australia
Europe
Germany
France
UK
Italy
Russia
Middle East & Africa
Egypt
South Africa
Israel
Turkey
GCC Countries

The below companies that are profiled have been selected based on inputs gathered from primary experts and analysing the company's coverage, product portfolio, its market penetration.
RUSAL
Resonac
Norsk Hydro

Key Questions Addressed in this Report

What is the 10-year outlook for the global Eutectic Al-Si Alloy market?

What factors are driving Eutectic Al-Si Alloy market growth, globally and by region?

Which technologies are poised for the fastest growth by market and region?

How do Eutectic Al-Si Alloy market opportunities vary by end market size?

How does Eutectic Al-Si Alloy break out by Type, by Application?

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