常用焊接结构用铸钢的化学成分及碳当量上限值
<TABLE cellSpacing=0 cellPadding=0 align=center border=1><TBODY>
<TR>
<TD vAlign=top width=72 rowSpan=2>
<DIV align=center>标准</DIV></TD>
<TD vAlign=top width=60 rowSpan=2>
<DIV align=center>牌号</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>C</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>Mn</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>Si</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>P</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>S</DIV></TD>
<TD vAlign=top width=260 colSpan=6>
<DIV align=center>残余元素</DIV></TD>
<TD vAlign=top width=40 rowSpan=2>
<DIV align=center>碳当量</DIV></TD></TR>
<TR>
<TD vAlign=top width=48>
<DIV align=center>Ni</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>Cr</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>Cu</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>Mo</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>V</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>总量</DIV></TD></TR>
<TR>
<TD vAlign=top width=72 rowSpan=4>
<DIV align=center>国际标准（ISO3755-1991）</DIV></TD>
<TD vAlign=top width=60>
<DIV align=center>200~400W</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.00</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.35</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.05</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>1.0</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center></DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>230~450W</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.35</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.05</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>1.0</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center> </DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>270~480W</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.35</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.05</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>1.0</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center> </DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>340~550W</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.035</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.35</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.05</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>1.0</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center> </DIV></TD></TR>
<TR>
<TD vAlign=top width=72 rowSpan=3>
<DIV align=center>我国标准</DIV>
<DIV align=center>（GB/T7659-1987）</DIV></TD>
<TD vAlign=top width=60>
<DIV align=center>ZG200~400H</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.80</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.50</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>0.30</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.05</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>0.8</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.38</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>ZG230~450H</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.22</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.50</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>0.30</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.05</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>0.8</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.43</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>ZG270~485H</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.50</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>0.30</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.05</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>0.8</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.45</DIV></TD></TR>
<TR>
<TD vAlign=top width=72 rowSpan=5>
<DIV align=center>日本标准</DIV>
<DIV align=center>（JISG5102-1991）</DIV></TD>
<TD vAlign=top width=60>
<DIV align=center>SCW410</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.22</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>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=40>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=44>
<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>
<TD vAlign=top width=32>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.40</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>SCW450</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.22</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>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=40>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=44>
<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>
<TD vAlign=top width=32>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.43</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>SCW480</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.22</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>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>0.50</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=44>
<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>
<TD vAlign=top width=32>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.45</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>SCW550</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.22</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>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>2.50</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.20</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.48</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>SCW620</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.22</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>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>2.50</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.20</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.50</DIV></TD></TR>
<TR>
<TD vAlign=top width=72 rowSpan=3>
<DIV align=center>美国标准</DIV>
<DIV align=center>（ASTMA216-1998）</DIV></TD>
<TD vAlign=top width=60>
<DIV align=center>WCA</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.70</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.045</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.03</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>1.0</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.50</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>WCB</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.30</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.00</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.045</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.03</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>1.0</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.50</DIV></TD></TR>
<TR>
<TD vAlign=top width=60>
<DIV align=center>WCC</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>1.20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.60</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.04</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.045</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.40</DIV></TD>
<TD vAlign=top width=44>
<DIV align=center>0.50</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.25</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>0.03</DIV></TD>
<TD vAlign=top width=32>
<DIV align=center>1.0</DIV></TD>
<TD vAlign=top width=40>
<DIV align=center>0.55</DIV></TD></TR></TBODY></TABLE>
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