焊接结构用铸钢的力学性能
<TABLE cellSpacing=0 cellPadding=0 border=1><TBODY>
<TR>
<TD vAlign=top width=103 rowSpan=2>
<DIV align=center>标准</DIV></TD>
<TD vAlign=top width=96 rowSpan=2>
<DIV align=center>牌号</DIV></TD>
<TD vAlign=top width=72 rowSpan=2>
<DIV align=center>σ<SUB>s</SUB>/MPa</DIV></TD>
<TD vAlign=top width=72 rowSpan=2>
<DIV align=center>σ<SUB>b</SUB>/MPa</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>δ(%)</DIV></TD>
<TD vAlign=top width=48 rowSpan=2>
<DIV align=center>φ(%)</DIV></TD>
<TD vAlign=top width=132 colSpan=2>
<DIV align=center>冲击性能</DIV></TD></TR>
<TR>
<TD vAlign=top width=50>
<DIV align=center>Akv/J</DIV></TD>
<TD vAlign=top width=82>
<DIV align=center>aku/(J/cm<SUP>2</SUP>)</DIV></TD></TR>
<TR>
<TD vAlign=top width=103>
<DIV align=center>国际标准（ISO3755-1991）</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>200~400W</DIV>
<DIV align=center>230~450W</DIV>
<DIV align=center>270~480W</DIV>
<DIV align=center>340~550W</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>200</DIV>
<DIV align=center>230</DIV>
<DIV align=center>270</DIV>
<DIV align=center>340</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>400~550</DIV>
<DIV align=center>450~600</DIV>
<DIV align=center>480~630</DIV>
<DIV align=center>550~700</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>25</DIV>
<DIV align=center>22</DIV>
<DIV align=center>18</DIV>
<DIV align=center>15</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>40</DIV>
<DIV align=center>31</DIV>
<DIV align=center>25</DIV>
<DIV align=center>21</DIV></TD>
<TD vAlign=top width=50>
<DIV align=center>45</DIV>
<DIV align=center>45</DIV>
<DIV align=center>22</DIV>
<DIV align=center>20</DIV></TD>
<TD vAlign=top width=82>
<DIV align=center></DIV></TD></TR>
<TR>
<TD vAlign=top width=103>
<DIV align=center>我国标准</DIV>
<DIV align=center>（GB/T7659-1987）</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>ZG200~400H</DIV>
<DIV align=center>ZG230~450H</DIV>
<DIV align=center>ZG270~485H</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>200</DIV>
<DIV align=center>230</DIV>
<DIV align=center>275</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>400</DIV>
<DIV align=center>450</DIV>
<DIV align=center>485</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>25</DIV>
<DIV align=center>22</DIV>
<DIV align=center>20</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>40</DIV>
<DIV align=center>35</DIV>
<DIV align=center>35</DIV></TD>
<TD vAlign=top width=50>
<DIV align=center>30</DIV>
<DIV align=center>25</DIV>
<DIV align=center>22</DIV></TD>
<TD vAlign=top width=82>
<DIV align=center>59</DIV>
<DIV align=center>44</DIV>
<DIV align=center>24</DIV></TD></TR>
<TR>
<TD vAlign=top width=103>
<DIV align=center>日本标准</DIV>
<DIV align=center>（JISG5102-1991）</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>SCW410</DIV>
<DIV align=center>SCW450</DIV>
<DIV align=center>SCW480</DIV>
<DIV align=center>SCW550</DIV>
<DIV align=center>SCW620</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>235</DIV>
<DIV align=center>255</DIV>
<DIV align=center>275</DIV>
<DIV align=center>355</DIV>
<DIV align=center>430</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>410</DIV>
<DIV align=center>450</DIV>
<DIV align=center>480</DIV>
<DIV align=center>550</DIV>
<DIV align=center>620</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>21</DIV>
<DIV align=center>20</DIV>
<DIV align=center>20</DIV>
<DIV align=center>18</DIV>
<DIV align=center>17</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=50>
<DIV align=center>28</DIV>
<DIV align=center>28</DIV>
<DIV align=center>28</DIV>
<DIV align=center>28</DIV>
<DIV align=center>28</DIV></TD>
<TD vAlign=top width=82>
<DIV align=center> </DIV></TD></TR>
<TR>
<TD vAlign=top width=103>
<DIV align=center>美国标准</DIV>
<DIV align=center>（ANSI/ASTMA216-1998）</DIV></TD>
<TD vAlign=top width=96>
<DIV align=center>WCA</DIV>
<DIV align=center>WCB</DIV>
<DIV align=center>WCC</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>205</DIV>
<DIV align=center>205</DIV>
<DIV align=center>275</DIV></TD>
<TD vAlign=top width=72>
<DIV align=center>415~585</DIV>
<DIV align=center>485~655</DIV>
<DIV align=center>485~655</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>24</DIV>
<DIV align=center>24</DIV>
<DIV align=center>24</DIV></TD>
<TD vAlign=top width=48>
<DIV align=center>35</DIV>
<DIV align=center>35</DIV>
<DIV align=center>35</DIV></TD>
<TD vAlign=top width=50>
<DIV align=center> </DIV></TD>
<TD vAlign=top width=82>
<DIV align=center> </DIV></TD></TR></TBODY></TABLE>
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