球墨铸铁用生铁
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<P align=center><STRONG>球墨铸铁用生铁(GB/T1412-1985)</STRONG></P></TD></TR>
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<P align=center><STRONG>铁号</STRONG></P></TD>
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<P align=center><STRONG>牌号</STRONG></P></TD>
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<P align=center><STRONG>Q10</STRONG></P></TD>
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<P align=center><STRONG>Q12</STRONG></P></TD>
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<P align=center><STRONG>Q16</STRONG></P></TD></TR>
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<P align=center><STRONG> </STRONG></P></TD>
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<P align=center><STRONG>Si</STRONG></P></TD>
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<P align=center><STRONG>≤1.00</STRONG></P></TD>
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<P align=center><STRONG>>1.00~1.40</STRONG></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">
<P align=center><STRONG>>1.40~1.80</STRONG></P></TD></TR>
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<P align=center><STRONG>Mn</STRONG></P></TD>
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<P align=center><STRONG>一组</STRONG></P></TD>
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<P align=center><STRONG>≤0.20</STRONG></P></TD></TR>
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<P align=center><STRONG>二组</STRONG></P></TD>
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<P align=center><STRONG>>0.20~0.50</STRONG></P></TD></TR>
<TR style="HEIGHT: 25pt" height=33>
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<P align=center><STRONG>三组</STRONG></P></TD>
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<P align=center><STRONG>>0.50~0.80</STRONG></P></TD></TR>
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<P align=center><STRONG>P</STRONG></P></TD>
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<P align=center><STRONG>特级</STRONG></P></TD>
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<P align=center><STRONG>≤0.05</STRONG></P></TD></TR>
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<P align=center><STRONG>一级</STRONG></P></TD>
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<P align=center><STRONG>>0.05~0.06</STRONG></P></TD></TR>
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<P align=center><STRONG>二级</STRONG></P></TD>
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<P align=center><STRONG>>0.06~0.08</STRONG></P></TD></TR>
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<P align=center><STRONG>三级</STRONG></P></TD>
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<P align=center><STRONG>>0.08~0.10</STRONG></P></TD></TR>
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<P align=center><STRONG>S</STRONG></P></TD>
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<P align=center><STRONG>特类</STRONG></P></TD>
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<P align=center><STRONG>≤0.02</STRONG></P></TD></TR>
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<P align=center><STRONG>一类</STRONG></P></TD>
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<P align=center><STRONG>>0.02~0.03</STRONG></P></TD></TR>
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<P align=center><STRONG>二类</STRONG></P></TD>
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<P align=center><STRONG>>0.03~0.04</STRONG></P></TD></TR>
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<P align=center><STRONG>三类</STRONG></P></TD>
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<P align=center><STRONG>≤0.06</STRONG></P></TD>
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<P align=center><STRONG>≤0.05</STRONG></P></TD></TR></TBODY></TABLE></DIV>
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