结构用高强度铸钢的化学成分
<TABLE cellSpacing=0 cellPadding=0 align=center border=1><TBODY>
<TR>
<TD vAlign=top width=67 rowSpan=2>
<DIV align=center>类别</DIV></TD>
<TD vAlign=top width=96 rowSpan=2>
<DIV align=center>牌号</DIV></TD>
<TD vAlign=top width=458 colSpan=8>
<DIV align=center>化学成分（未给出范围者为最大值）（%）</DIV></TD></TR>
<TR>
<TD vAlign=top width=74>
<DIV align=center>C</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>Si</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>Mn</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>P</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>S</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>Ni</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>Cr</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>Mo</DIV></TD></TR>
<TR>
<TD vAlign=top width=67>
<DIV align=center>碳钢</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>SCC3</DIV>
<DIV align=center>SCC5</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.3~0.4</DIV>
<DIV align=center>0.4~0.5</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.30~0.60</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.50~0.80</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=67>
<DIV align=center>锰钢</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>SCMn1</DIV>
<DIV align=center>SCMn2</DIV>
<DIV align=center>SCMn3</DIV>
<DIV align=center>SCMn5</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.2~0.3</DIV>
<DIV align=center>0.25~0.35</DIV>
<DIV align=center>0.3~0.4</DIV>
<DIV align=center>0.4~0.5</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.30~0.60</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>1.0~1.6</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=67>
<DIV align=center>硅锰钢</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>SCSiMn2</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.25~0.35</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.50~0.80</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.90~1.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=67 rowSpan=3>
<DIV align=center>锰铬钢</DIV></TD>
<TD vAlign=top width=96 rowSpan=3>
<DIV align=center>SCMnCr2</DIV>
<DIV align=center>SCMnCr3</DIV>
<DIV align=center>SCMnCr4</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.25~0.35</DIV></TD>
<TD vAlign=top width=72 rowSpan=3>
<DIV align=center>0.30~0.60</DIV></TD>
<TD vAlign=top width=72 rowSpan=3>
<DIV align=center>1.20~1.60</DIV></TD>
<TD vAlign=top width=48 rowSpan=3>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48 rowSpan=3>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48 rowSpan=3>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48 rowSpan=3>
<DIV align=center>0.40~0.80</DIV></TD>
<TD vAlign=top width=48 rowSpan=3>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=74>
<DIV align=center>0.30~0.40</DIV></TD></TR>
<TR>
<TD vAlign=top width=74>
<DIV align=center>0.35~0.45</DIV></TD></TR>
<TR>
<TD vAlign=top width=67>
<DIV align=center>锰钼钢</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>SCMnM3</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.30~0.40</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.30~0.60</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>1.20~1.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15~0.35</DIV></TD></TR>
<TR>
<TD vAlign=top width=67 rowSpan=2>
<DIV align=center>铬钼钢</DIV></TD>
<TD vAlign=top width=96 rowSpan=2>
<DIV align=center>SCCrM1</DIV>
<DIV align=center>SCCrM2</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.20~0.30</DIV></TD>
<TD vAlign=top width=72 rowSpan=2>
<DIV align=center>0.30~0.60</DIV></TD>
<TD vAlign=top width=72 rowSpan=2>
<DIV align=center>0.50~0.80</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.80~1.20</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.15~0.35</DIV></TD></TR>
<TR>
<TD vAlign=top width=74>
<DIV align=center>0.30~0.40</DIV></TD></TR>
<TR>
<TD vAlign=top width=67 rowSpan=2>
<DIV align=center>锰铬</DIV>
<DIV align=center>钼钢</DIV></TD>
<TD vAlign=top width=96 rowSpan=2>
<DIV align=center>SCMnCrM2</DIV>
<DIV align=center>SCMnCrM3</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.25~0.35</DIV></TD>
<TD vAlign=top width=72 rowSpan=2>
<DIV align=center>0.30~0.60</DIV></TD>
<TD vAlign=top width=72 rowSpan=2>
<DIV align=center>1.20~1.60</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.03~0.70</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>0.15~0.35</DIV></TD></TR>
<TR>
<TD vAlign=top width=74>
<DIV align=center>0.30~0.40</DIV></TD></TR>
<TR>
<TD vAlign=top width=67>
<DIV align=center>镍铬</DIV>
<DIV align=center>钼钢</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>SCNiCrM2</DIV></TD>
<TD vAlign=top width=74>
<DIV align=center>0.25~0.35</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.30~0.60</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>0.90~1.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.60~2.00</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.30~0.90</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15~0.35</DIV></TD></TR></TBODY></TABLE>
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