Corten Steel Firepit Ball
This firepit adds both charm and functionality to any garden, creating a warm, inviting atmosphere.
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Product Introduction
The Weathering Steel Fireball is a spherical outdoor heating and landscaping installation made primarily of weathering steel (CORTEN steel). It combines the warmth of a fire pit with the aesthetic appeal of a spherical sculpture, serving as both a practical heat source and a visually striking focal point in outdoor spaces. Its unique spherical shape allows flames to rise from the top or openwork sections, creating a primal atmosphere reminiscent of "fire from the earth."
Unlike conventional fire pits, the Fireball's spherical structure provides a 360-degree panoramic view, allowing for a harmonious interplay between the leaping flames and the rust-red sphere from any angle. Over time, a dense rust-red oxide film naturally forms on the weathering steel surface, giving the product a richer and more nuanced appearance-gradually changing from a bright orange-red to a deep brownish-red.
Core Materials and Performance
Base Material Selection
Common Grades: Q235NH, 09CuPCrNi-A (CORTEN-A), SPA-H, etc., weathering steel plates
Plate Thickness: Standard 3.0mm-6.0mm, customized according to sphere diameter and application requirements
Alloy Composition: Contains corrosion-resistant elements such as copper (Cu 0.25-0.5%), chromium (Cr 0.3-1.25%), and nickel (Ni 0.12-0.65%), resulting in weather resistance 4-8 times that of ordinary carbon steel.
Weathering Mechanism: When weathering steel is exposed to the natural environment, a dense, rust-red oxide film naturally forms on its surface. This "rust layer" effectively prevents further penetration of oxygen and water, achieving "rust prevention with rust," eliminating the need for paint protection. Unlike ordinary steel, which continues to corrode after rusting, the rust layer of weathering steel becomes a protective layer once formed.
Size Range
Ball Diameter: 19mm to 1000mm or larger, common sizes include 550mm, 600mm, 800mm, and 1000mm
Large fireballs can reach 1500mm in diameter.
Weight Reference
800mm diameter fireball, 4mm thickness: Approximately 50kg
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