Since only the finest ingredients will produce the best results, our pewter casting and tin and lead based white metal alloys are made from high-grade 100% primary metals. A system of scientific checks ensures that each metal alloy is of consistent quality and uniformity. Ingots are stamped with the alloy and melt number. Each melt is metallurgically tested against rigid performance standards. Each ingot is subjected to a rigorous program of quality control. Ultra-efficient production processes mean less downtime and rejections, less dross, and less porosity. Contenti stocks high tin content white metal casting alloys in two series: Tin-Lead alloys and Lead-Free Tin alloys, including 92-8 pewter casting alloy.