4.1 Ferrous metal 4.1.1 Carbon steel Ferrite (o iron): An interstitial solid solution of a small amount of carbon dissolved in iron with a Body Centered Cubic (B.C.C.)crystal structure. It is the softer alloy in the iron- carbon diagram. The solubility of carbon at eutectic temperature (727C) reaches the maximum with 0.022wt% PDF文件使用"pdfFactory Pro”试用版本创建ww,fineprint..com,cn4.1 Ferrous metal 4.1.1 Carbon steel Ferrite (a iron): An interstitial solid solution of a small amount of carbon dissolved in iron with a Body Centered Cubic (B.C.C.) crystal structure. It is the softer alloy in the iron￾carbon diagram. The solubility of carbon at eutectic temperature (727°C) reaches the maximum with 0.022wt% PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn