所谓花纹钢,是一种经特殊工艺制成的钢铁料,把它表面打磨光净后,或者再用某种腐蚀剂处理一下,即呈现出各种花纹。其形态有如流水,有似彩云,或像鱼肠,或类木纹,变化万千,难以穷尽。花纹钢主要用来制作宝刀、宝剑等,我国古代许多名贵刀剑都是用它制作的。有关花纹钢较为明确的记载始于汉代。据《典论》所载,东汉末年,曹丕曾作宝刀三把、宝剑三把、匕首两把、露陌刀一把。它们身上都有不同的光彩或花纹:或“色似 The so-called pattern steel, is a special process made of steel material, the surface polished polished, or use some kind of etchant to deal with, that presents a variety of patterns. Its shape is like water, like clouds, or like fish intestines, or wood-like, changing, difficult to exhaust. Pattern steel is mainly used to make knives, swords, etc., many of our ancient expensive sword is made with it. More clear about the pattern steel records began in the Han Dynasty. According to “Code”, contained in the late Eastern Han Dynasty, Cao Pi had made three knife, sword three, two daggers, a knife and a knife. They all have different luster or pattern: or "like color