ʻO ka koho balotaʻo Alloy i keʻano o nā mea likeʻole me nāʻano he nui ma waena o 1.0% a me 50% ma ke kaupaonaʻana e hoʻomaikaʻi ai i kāna mau mea hana. Ua hakiʻia nā'ōpala Kaʻokoʻa ma waena o nā meaʻelua i hoʻopaʻapaʻaʻia. Smith a me Hashmi e wehewehe i kaʻokoʻa ma ka 4.0%,ʻoiaiʻo Degarmo, et al., E wehewehe i ka 8.0%. [1] [2] ʻO ka maʻamau maʻamau,ʻo ka hua'ōlelo "Alloy Steel" e pili ana i nā kāla lole haʻahaʻa.