碳素结构钢的冷弯性能
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<DIV align=center><FONT size=2>牌 号</FONT></DIV></TD>
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<DIV align=center><FONT size=2>试样方向</FONT></DIV></TD>
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<DIV align=center><FONT size=2>180°冷弯试验B=2a/mm</FONT></DIV></TD></TR>
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<TD width="19%">
<DIV align=center><FONT size=2>60</FONT></DIV></TD>
<TD width="23%" colSpan=2>
<DIV align=center><FONT size=2>>60~100</FONT></DIV></TD>
<TD width="26%">
<DIV align=center><FONT size=2>>100~200</FONT></DIV></TD></TR>
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<TD width="69%" colSpan=4>
<DIV align=center><FONT size=2>弯心直径d</FONT></DIV></TD></TR>
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<DIV align=center><FONT size=2>Q195</FONT></DIV></TD>
<TD width="14%">
<DIV align=center><FONT size=2>纵</FONT></DIV></TD>
<TD width="19%">
<DIV align=center><FONT size=2>0</FONT></DIV></TD>
<TD width="23%" rowSpan=2>
<DIV align=center><FONT size=2></FONT></DIV></TD>
<TD width="26%" colSpan=2 rowSpan=2>
<DIV align=center><FONT size=2></FONT></DIV></TD></TR>
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<TD width="14%">
<DIV align=center><FONT size=2>横</FONT></DIV></TD>
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<DIV align=center><FONT size=2>0.5a</FONT></DIV></TD></TR>
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<TD width="15%" rowSpan=2>
<DIV align=center><FONT size=2>Q215</FONT></DIV></TD>
<TD width="14%">
<DIV align=center><FONT size=2>纵</FONT></DIV></TD>
<TD width="19%">
<DIV align=center><FONT size=2>0.5a</FONT></DIV></TD>
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<DIV align=center><FONT size=2>1.5a</FONT></DIV></TD>
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<DIV align=center><FONT size=2>2a</FONT></DIV></TD></TR>
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<TD width="14%">
<DIV align=center><FONT size=2>横</FONT></DIV></TD>
<TD width="19%">
<DIV align=center><FONT size=2>a</FONT></DIV></TD>
<TD width="23%">
<DIV align=center><FONT size=2>2a</FONT></DIV></TD>
<TD width="26%" colSpan=2>
<DIV align=center><FONT size=2>2.5a</FONT></DIV></TD></TR>
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<TD width="15%" rowSpan=2>
<DIV align=center><FONT size=2>Q235</FONT></DIV></TD>
<TD width="14%">
<DIV align=center><FONT size=2>纵</FONT></DIV></TD>
<TD width="19%">
<DIV align=center><FONT size=2>a</FONT></DIV></TD>
<TD width="23%">
<DIV align=center><FONT size=2>2a</FONT></DIV></TD>
<TD width="26%" colSpan=2>
<DIV align=center><FONT size=2>2.5a</FONT></DIV></TD></TR>
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<TD width="14%">
<DIV align=center><FONT size=2>横</FONT></DIV></TD>
<TD width="19%">
<DIV align=center><FONT size=2>1.5a</FONT></DIV></TD>
<TD width="23%">
<DIV align=center><FONT size=2>2.5a</FONT></DIV></TD>
<TD width="26%" colSpan=2>
<DIV align=center><FONT size=2>3a</FONT></DIV></TD></TR>
<TR>
<TD width="15%">
<DIV align=center><FONT size=2>Q255</FONT></DIV></TD>
<TD width="14%">
<DIV align=center><FONT size=2></FONT></DIV></TD>
<TD width="19%">
<DIV align=center><FONT size=2>2a</FONT></DIV></TD>
<TD width="23%">
<DIV align=center><FONT size=2>3a</FONT></DIV></TD>
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<DIV align=center><FONT size=2>3.5a</FONT></DIV></TD></TR>
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<TD width="15%">
<DIV align=center><FONT size=2>Q275</FONT></DIV></TD>
<TD width="14%">
<DIV align=center><FONT size=2></FONT></DIV></TD>
<TD width="19%">
<DIV align=center><FONT size=2>3a</FONT></DIV></TD>
<TD width="23%">
<DIV align=center><FONT size=2>4a</FONT></DIV></TD>
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<DIV align=center><FONT size=2>4.5a</FONT></DIV></TD></TR></TBODY></TABLE>
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