结构用高强度铸钢件
<TABLE cellSpacing=0 cellPadding=0 align=center border=1><TBODY>
<TR>
<TD vAlign=top width=84 rowSpan=2>
<DIV align=center>牌号</DIV></TD>
<TD vAlign=top width=111 colSpan=2>
<DIV align=center>化学成分（%）≤</DIV></TD>
<TD vAlign=top width=65 rowSpan=2>
<DIV align=center>抗拉强度/MPa≥</DIV></TD>
<TD vAlign=top width=58 rowSpan=2>
<DIV align=center>屈服强度/MPa≥</DIV></TD>
<TD vAlign=top width=59 rowSpan=2>
<DIV align=center>伸长率（%）</DIV>
<DIV align=center>≥</DIV></TD>
<TD vAlign=top width=70 rowSpan=2>
<DIV align=center>断面收缩率（%）</DIV>
<DIV align=center>≥</DIV></TD>
<TD vAlign=top width=121 colSpan=2>
<DIV align=center>冲击吸收功/J≥</DIV></TD></TR>
<TR>
<TD vAlign=top width=59>
<DIV align=center></DIV></TD>
<TD vAlign=top width=51>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>两个试样的平均值</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>单个试样的值</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>550-275</DIV></TD>
<TD vAlign=top width=59 rowSpan=9>
<DIV align=center>0.050</DIV></TD>
<TD vAlign=top width=51 rowSpan=9>
<DIV align=center>0.060</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>550</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>275</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>18</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>30</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>550-345</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>550</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>345</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>22</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>35</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>620-415</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>620</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>415</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>20</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>40</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>725-585</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>725</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>585</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>17</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>35</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>795-653</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>795</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>635</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>14</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>30</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>895-795</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>855</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>795</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>11</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>25</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>930-860</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>930</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>860</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>9</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>22</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1035-930</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>0.35</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>930</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>7</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>18</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1105-1000</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>1105</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>1000</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>6</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>12</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1140-1035</DIV></TD>
<TD vAlign=top width=59 rowSpan=6>
<DIV align=center>0.020</DIV></TD>
<TD vAlign=top width=51 rowSpan=6>
<DIV align=center>0.020</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>1140</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>1035</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>5</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>20</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1140-1035L</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>1140</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>1035</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>5</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>20</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>27</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>22</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1450-1240</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>1450</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>1240</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>4</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>15</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1450-1240L</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>1450</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>1240</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>4</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>15</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>20</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>16</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1795-1450</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>1795</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>1450</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>3</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>6</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>—</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>—</DIV></TD></TR>
<TR>
<TD vAlign=top width=84>
<DIV align=center>1795-1450L</DIV></TD>
<TD vAlign=top width=65>
<DIV align=center>1795</DIV></TD>
<TD vAlign=top width=58>
<DIV align=center>1450</DIV></TD>
<TD vAlign=top width=59>
<DIV align=center>3</DIV></TD>
<TD vAlign=top width=70>
<DIV align=center>6</DIV></TD>
<TD vAlign=top width=67>
<DIV align=center>8</DIV></TD>
<TD vAlign=top width=54>
<DIV align=center>5</DIV></TD></TR></TBODY></TABLE>
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