Grey Iron Castings: Properties and Applications At RefacX, we support global industries with high-quality grey iron castings manufactured by certified Korean foundries. With decades of expertise and strict adherence to international standards, our suppliers deliver castings that combine reliability, cost-effectiveness, and performance across construction, energy, heavy machinery, and infrastructure projects.

Introduction Sand casting carbon steel is highly challenging because of its elevated melting temperature. As a practical alternative, ductile cast iron offers similar metallurgical properties while being far easier to process. With its lower melting point, ductile iron allows manufacturers to achieve near-steel performance in cast components, while also reducing machining effort and overall production costs.

What is Large Sand Casting? Manufacturing Process for Heavy Industrial Components Among all manufacturing processes, sand casting stands as one of the oldest and most enduring techniques, with a history that stretches back thousands of years. At its core, casting refers to shaping a material by pouring molten metal into a prepared mold cavity, allowing it to solidify into a desired form. In the case of large sand casting, this principle is applied to produce oversized components that can weigh from several hundred kilograms to many tons.