High purity copper ingots (HF, C5N grade), oxygen-free copper Chemical purity: 99.999% wt. calculated as the difference between 100% and the total content of metal implications (Metals Base) in accordance with Alfa Aesar Sigma-Aldrich or Russian GOST 859-2014 â??Copper. Ingots. Quantity: from 10,000 to 50,000 kg per month or more. Assortment and packaging: - Flat ingots (strips 15 - 40 mm thick; 300, 600 mm wide; up to 1500 mm long, packaged in 1 ton; - Ingots may be cut into templates of 3-5 kg, in plastic bags, packed in plastic or metal boxes of 40-50 kg; - Bars - a square of 50 mm.