Antimony (Sb)
Antimony (Sb) is used in foundries to enhance hardness, strength, and microstructure control in both ferrous and non-ferrous alloys, improving casting performance and durability.
Iron Applications – In gray iron, Antimony promotes pearlite formation, contributing to improved strength and wear resistance. In heavy-section ductile iron, it helps control nodule expansion and reduces the risk of exploded nodules.
Non-Ferrous Applications – Antimony enhances hardness, tensile strength, and corrosion resistance in non-ferrous alloys, making it valuable for applications requiring durability and longevity.
Antimony (Sb) – High-Performance Alloying Element for Iron and Non-Ferrous Foundry Applications
Antimony (Sb) is a versatile metalloid widely used in the foundry industry for its unique ability to modify microstructure and enhance mechanical properties in both ferrous and non-ferrous alloys. Supplied in high-purity ingot or granulated form, Antimony is a valuable additive that improves casting quality, durability, and performance.
In iron foundry applications, Antimony is commonly used in gray and ductile iron production. In gray iron, it promotes pearlite formation, resulting in improved hardness, wear resistance, and dimensional stability—critical properties for engine blocks, brake components, and other wear-prone castings. In heavy-section ductile iron, Antimony plays a key role in refining nodule structure. It slows down graphite nodule growth and helps prevent the formation of exploded nodules, which can compromise casting integrity.
In non-ferrous foundry applications, Antimony is used primarily in copper-based alloys, lead alloys, and tin-based systems. It increases alloy hardness, tensile strength, and corrosion resistance, making it suitable for demanding environments such as marine hardware, plumbing fixtures, and bearing materials. Antimony is also a key component in many low-friction and antifriction alloys, extending the life and reliability of moving parts.
Carpenter Brothers offers Antimony (Sb) in multiple sizes and packing. Contact us for availability.
Antimony (Sb) Products
Antimony is used in foundries to enhance hardness, strength, and microstructure control in both ferrous and non-ferrous alloys, improving casting performance and durability.
Foundry Products
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About Us
Carpenter Brothers, Inc. is the leading supplier of equipment, consumables, and technical expertise for the metal casting industry. Founded in 1917, by Everett and Milton Carpenter, the brothers were able to use their unique foundry experiences to solve the problem of the day: a reliable sand source. They got their foot in the door by selling natural bonded molding sand, which was mined by hand, loaded into horse-drawn carts, and then delivered to customers. Not only did they sell the sand, but their technical expertise was readily available for all customers, big or small, to help manufacture the best castings. After surviving The Great Depression, Carpenter Brothers, Inc. slowly increased the number of products it distributed and expanded its sales territory into what it is today.
Carpenter Brothers, Inc. has committed itself to its customer's success by providing exceptional service to go along with the superior products and equipment they supply. With multiple warehouses around the United States we can get you the products you need when you need them. Our logistics team can handle getting your order to you by truck, plane, or train. Our technical sales and engineering staff all have experience in the industry, so when you buy from Carpenter Brothers you gain access to all of our knowledge.
