chemical composition en 24關於「en41b material hardness in hrc」標籤，搜尋引擎有相關的訊息討論：
EN41B Nitriding Steel|41CrAlMo7-DIN 1.8509-Fuhong SteelEN41B Nitriding Steel-BS 970 Standard ; Tempering Temperature,℃, 150, 200 ; Hardness,HRC, 56, 55 ...缺少字詞： gl= twEN 41B Nitriding SteelThis material can obtain high wear resistance,good toughness and ... EN41B Nitriding Ste