美国标准高温用碳素铸钢的钢号与化学成分（质量分数）（%）
<TABLE width=748 align=center border=1><TBODY>
<TR>
<TD colSpan=2>
<DIV align=center>钢号</DIV></TD>
<TD colSpan=4>
<DIV align=center>主要化学成分（≤%）</DIV></TD>
<TD colSpan=7>
<DIV align=center>残余元素（≤%）</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>ASTM</DIV></TD>
<TD>
<DIV align=center>UNS</DIV></TD>
<TD>
<DIV align=center>C<BR>（<EM>C</EM><SUB>E</SUB>） </DIV></TD>
<TD>
<DIV align=center>Si </DIV></TD>
<TD>
<DIV align=center>Mn </DIV></TD>
<TD>
<DIV align=center>P </DIV></TD>
<TD>
<DIV align=center>S </DIV></TD>
<TD>
<DIV align=center>Cr </DIV></TD>
<TD>
<DIV align=center>Ni </DIV></TD>
<TD>
<DIV align=center>Mo </DIV></TD>
<TD>
<DIV align=center>Cu</DIV></TD>
<TD>
<DIV align=center>V</DIV></TD>
<TD>
<DIV align=center>总量</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>WCA</DIV></TD>
<TD>
<DIV align=center>J02502</DIV></TD>
<TD>
<DIV align=center>0.25<BR>（0.50）</DIV></TD>
<TD>
<DIV align=center>0.60</DIV></TD>
<TD>
<DIV align=center>0.70</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.045</DIV></TD>
<TD>
<DIV align=center>0.50</DIV></TD>
<TD>
<DIV align=center>0.50</DIV></TD>
<TD>
<DIV align=center>0.20</DIV></TD>
<TD>
<DIV align=center>0.30</DIV></TD>
<TD>
<DIV align=center>0.03</DIV></TD>
<TD>
<DIV align=center>1.00</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>WCB</DIV></TD>
<TD>
<DIV align=center>J03002</DIV></TD>
<TD>
<DIV align=center>0.25<BR>（0.50）</DIV></TD>
<TD>
<DIV align=center>0.60</DIV></TD>
<TD>
<DIV align=center>0.70</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.045</DIV></TD>
<TD>
<DIV align=center>0.50</DIV></TD>
<TD>
<DIV align=center>0.50</DIV></TD>
<TD>
<DIV align=center>0.20</DIV></TD>
<TD>
<DIV align=center>0.30</DIV></TD>
<TD>
<DIV align=center>0.03</DIV></TD>
<TD>
<DIV align=center>1.00</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>WCC</DIV></TD>
<TD>
<DIV align=center>J02503</DIV></TD>
<TD>
<DIV align=center>0.25<BR>（0.50）</DIV></TD>
<TD>
<DIV align=center>0.60</DIV></TD>
<TD>
<DIV align=center>0.70</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.045</DIV></TD>
<TD>
<DIV align=center>0.50</DIV></TD>
<TD>
<DIV align=center>0.50</DIV></TD>
<TD>
<DIV align=center>0.20</DIV></TD>
<TD>
<DIV align=center>0.30</DIV></TD>
<TD>
<DIV align=center>0.03</DIV></TD>
<TD>
<DIV align=center>1.00</DIV></TD></TR></TBODY></TABLE>
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