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已有很多国家用不锈钢来制造货币,估计每年所用的18万吨金属货币中有10％是由不锈钢制造的。用不锈钢铸造货币的国家有:英国、加拿大、巴西、墨西哥、意大利、法国,近来还有印度和伊拉克。和用镍和镍铜合金相比,不锈钢的优点是价格便宜、耐磨和耐蚀性好、美观、可用普通方法生产和加工。但是货币铸坯必须足够软化才能在冲压时得到明晰的浮雕,在加工和使用中又要求有一定的耐磨性。因此在用不锈钢作货币的限制因素是它的硬度。即使用退火的铁素体不锈钢,硬度也较高。为了使制造货币的铁素体不锈钢性能最佳化,使之更广泛地采用,南非对常用的贷币含16～ 18％Cr的铁素体不锈钢进行了系统研究。
Many countries have used stainless steel to make their currency, and it is estimated that 10% of the 180,000 tons of metal used each year are made of stainless steel. Countries that cast coins in stainless steel are: Britain, Canada, Brazil, Mexico, Italy, France and more recently India and Iraq. Compared with nickel and nickel-copper alloy, stainless steel has the advantage of cheap, good abrasion and corrosion resistance, beautiful, can be produced and processed by ordinary methods. However, the currency slab must be sufficiently softened to get a clear embossing during stamping, which in turn requires a certain degree of wear resistance during processing and use. Therefore, the limiting factor in the use of stainless steel as the currency is its hardness. Even with annealed ferritic stainless steel, the hardness is higher. In order to optimize the performance of currency-producing ferritic stainless steels and make them more widely used, South Africa conducted a systematic study of commonly used ferrite stainless steels containing 16-18% Cr.