本文通过对黑龙江省友谊县凤林古城出土铁器进行了金相组织观察和夹杂物成分分析,认为该遗址出土的铁器材质为生铁系制钢产品,采用了铸造、退火、炒钢、淬火等工艺,本文为深入研究魏晋时期东北亚地区钢铁技术提供新的科学材料。 Based on the metallographic observation and the inclusion composition analysis of the ironwork unearthed in the ancient city of Fenglin, Youyi County, Heilongjiang Province, this paper argues that the ironwork excavated at the site is pig iron-based steelmaking products. The techniques of casting, annealing, steel- , This article provides new scientific materials for further studying the steel technology in Northeast Asia during the Wei and Jin Dynasties.