Import Cr-Sand 46% Cr2o3 For Foundry/Casting — Buy in wholesale FOB from Supplier in China

This chromium sand is a foundry-grade refractory material with a guaranteed chromium oxide (Cr2O3) content of 46.0% minimum, designed for precision casting applications where thermal stability and resistance to metal penetration are critical. The material meets strict chemical limits, including a maximum silicon dioxide (SiO2) content of 1.0%, iron oxide (FeO) capped at 26.5%, calcium oxide (CaO) at 0.30% max, and magnesium oxide (MgO) at 10.0% max, ensuring consistency in high-temperature performance. Aluminium oxide (Al2O3) is controlled at 15.5% max, with phosphorus and sulfur each limited to 0.003% max to prevent defects in the final cast.

The sand is available in a range of AFS (American Foundry Society) grain fineness numbers, from AFS 25-35 up to AFS 60-65, allowing buyers to select the particle size distribution that matches their casting requirements for surface finish and permeability. Grain size consistency is critical for avoiding metal penetration and ensuring dimensional accuracy in the finished component. Typical foundry applications use AFS 30-50 for medium to large castings, while finer grades (AFS 50-65) are often selected for precision or thin-walled castings where surface smoothness is a priority.

Primarily used in steel and iron foundries, this chromite sand is packed in 1 metric ton big bags for bulk handling and efficient logistics. It is suited for both ferrous and non-ferrous casting, particularly where the molten metal’s temperature exceeds 1600°C and standard silica sand would degrade. Buyers in the automotive, aerospace, and heavy machinery sectors source this material for its ability to withstand extreme heat without fusing to the casting surface. Trade terms, including MOQ and lead time, should be confirmed directly with the supplier to align with production schedules.

Zhengzhou Haixu Abrasives Co., Ltd. is based in Room 1903, Yaxing Times Plaza, Erqi District, Zhengzhou City, Henan Province, China, positioning it within a key industrial hub for refractory and abrasive materials. The company’s address and operational base suggest a focus on serving domestic and international foundries with bulk refractory supplies, leveraging China’s established infrastructure for mining and processing chromite ores.

As an imported-tier supplier on the platform, the company’s profile indicates it sources chromite sand for foundry applications, with a product range that includes this 46% Cr2O3 specification. The supplier’s response rate and verification signals are not yet established, so buyers are advised to request updated trade references and quality certificates before placing orders. The absence of a stated MOQ or lead time in the listing means these details must be clarified directly with the supplier to ensure alignment with production needs.