生铁的分类
<P><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''"><FONT face=Verdana> </FONT>钢铁材料通常是指铁碳合金，按含碳量的大小分类，含碳量</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">(</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">质量分数</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">大于</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">2</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">％的为生铁，小于</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">2</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">％的为钢，含碳量</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">(</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">质量分数</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">小于</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">0</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">．</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: ˎ̥,Verdana,Arial; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">04</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''">％的为工业纯铁。</SPAN></P><P><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: ''''''''Times New Roman''''''''; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ''''''''ˎ̥,Verdana,Arial''''''''; mso-hansi-font-family: ''''''''ˎ̥,Verdana,Arial''''''''"> 生铁的分类<B> </P>
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<DIV align=center>分类方法</DIV></TD>
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<DIV align=center>分类名称</DIV></TD>
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<DIV align=center>说 明</DIV></TD></TR>
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<DIV align=center>1．按用途分</DIV></TD>
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<DIV align=center>(1)炼钢生铁</DIV></TD>
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<DIV align=left>炼钢生铁是指用于平炉、转炉炼钢的生铁，一般含硅量较低(不大于1.75％)，含硫量较高(不大于0.07％)，质硬而脆，断口呈白色，也称白口铁</DIV></TD></TR>
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<DIV align=center>(2)铸造生铁</DIV></TD>
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<DIV align=left>铸造生铁是指用于铸造各种生铁铸件的生铁，一般含硅量较高(达3.75％)，含硫量稍低(不大于0.06％)，断口呈灰色，也称灰口铁</DIV></TD></TR>
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<DIV align=center>2．按化学成分分</DIV></TD>
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<DIV align=center>(1)普通生铁</DIV></TD>
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<DIV align=left>普通生铁是指不含其他合金元素的生铁，如炼钢生铁、铸造生铁均属此类</DIV></TD></TR>
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<DIV align=center>(2)特种生铁</DIV></TD>
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<DIV align=left>1)天然合金生铁——用含有共生金属的铁矿石或精矿、用还原剂还原而制成的一种特殊生铁，可用来炼钢及铸造</DIV>
<DIV align=left>2)铁合金——在炼铁时特意加入其他成分的元素，炼成含有多种合金元素的特种生铁，其品种较多，如锰铁、硅铁、铬铁等，是炼钢的原料之一，也可用于铸造</DIV></TD></TR></TBODY></TABLE></B></DIV></SPAN>
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