the metals which can be used for investment casting include low carbon steel, medium carbon steel, alloy steel, stainless steel and other metal or their alloys. RMC is capable of meeting a wide variety of alloys material specifications according to ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB standards. We have more than 100 different ferrous and non-ferrous alloys with which we cast parts using complex design structure. Due to the complex structure in dimension and geometric, the investment castings are produced to net shape or near net shape, minimizing the need for secondary processes such as lathing, turning or other machining process.

Lost wax investment casting can reach dimensional tolerance grade CT 5-7 according to ISO 8062. Our fully organized equipment and automation process controls allow for consistent and repeatable tolerances as close as±0.1 mm. the lost wax casting parts can also be produced in a wide size range, they may be as small as 10 mm long x 10 mm wide x 10 mm high and weigh as little as 0.01 kg, or as big as 1000 mm in length and weigh as much as 100 kg.

Lost wax casting processed can produce steel casting parts with good surface quality, less surface defects, high accuracy in dimensions, small but complex structure with thin wall thickness. however, the cost per unit piece would be comparatively higher than sand casting, lost foam casting and vacuum casting processes. Generally speaking, the lost wax investment casting with water glass as shell bond is about 1.2-1.7 times of sand casting, and the lost wax casting with silica sol as shell bond is about 1.5-2.5 times of water glass castings, by weight per kilograms, depending on the structure and size of the desired casting parts.