KT Metal Castings Blogs

Automotive die casting is a manufacturing process that injects molten metal into steel molds under high pressure to create precise, lightweight vehicle components. It is widely used to produce engine blocks, transmission cases, and structural parts from aluminum or magnesium alloys for strength, weight reduction, and cost efficiency. What is…

A heat number is a unique identification code stamped on metal products that traces back to their manufacturing batch. Heat numbers typically use a combination of letters and numbers that provide specific information about the metal’s production. The format varies between manufacturers, but most follow similar patterns. Furnace/Ladle ID The…

Manufacturing involves tracking products through various identification systems. Heat numbers, lot numbers, and batch numbers might seem similar, but they serve different purposes in quality control and traceability. The main difference between heat number, lot number, and batch number is their traceability scope. A heat number identifies a specific melt…

Heat transfer calculators help you figure out how much heat moves between objects. They use three main formulas based on how the heat travels. Heat Transfer Calculator Heat Transfer Calculator Select Heat Transfer Type: ConductionConvectionRadiation Conduction: Q = k × A × (T₁ – T₂) / d Thermal Conductivity (k)…

Investment casting is a manufacturing process that creates precise metal parts by pouring molten metal into ceramic molds. It’s perfect when you need complex shapes with smooth surfaces and tight tolerances. Finding the right supplier for this process can make or break your project. A good partner delivers quality parts…

Heat flow in metal casting refers to the transfer of thermal energy from molten metal to the mold material. This process controls solidification speed, affects casting quality, and influences grain structure. Efficient heat flow ensures uniform cooling, reduces defects like shrinkage, and improves mechanical properties in the final casting. What…

The heat code in casting is a unique identification number assigned to a batch of metal during production. It links the casting to its chemical composition, manufacturing records, and quality certifications. Found on the product or documentation, it ensures traceability for safety, compliance, and quality control. What Is the Heat…

Non-expendable mold casting uses reusable molds that can produce hundreds or thousands of parts before wearing out. Unlike single-use molds, these durable molds save time and money in high-volume production. What Is Non-expendable Mold Casting Non-expendable mold casting is a metal casting process that uses reusable molds to create metal…

Expandable (expendable) casting uses single-use molds that are broken or destroyed to remove the casting, whereas non-expandable (permanent) casting uses durable molds that can be reused for many parts. In expendable processes (also called expendable-mold casting), the mold is usually made from sand, plaster, wax or ceramic and is sacrificed…

Heat treatment is a critical post-casting step to refine the microstructure and mechanical properties of metal components. By carefully heating a casting to specific temperatures, holding (soaking) for controlled times, and cooling in defined ways, foundries can tailor hardness, strength, ductility, toughness, wear resistance, and residual stress. Typical heat treatments…