抗磨白口铸铁的硬度
<TABLE borderColor=#000000 height=258 cellSpacing=0 cellPadding=1 width=548 align=center border=1><TBODY>
<TR>
<TD rowSpan=2>
<P align=center>牌号</P></TD>
<TD colSpan=2>
<P align=center>铸态或铸态并去应力处理</P></TD>
<TD colSpan=2>
<P align=center>硬化态或硬化态并去应力处理</P></TD>
<TD colSpan=2>
<P align=center>软化退火态</P></TD></TR>
<TR>
<TD>
<P align=center>HRC</P></TD>
<TD>
<P align=center>HB</P></TD>
<TD>
<P align=center>HRC</P></TD>
<TD>
<P align=center>HB</P></TD>
<TD>
<P align=center>HRC</P></TD>
<TD>
<P align=center>HB</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBNi4Cr2-DT</P></TD>
<TD>
<P align=center>≥53</P></TD>
<TD>
<P align=center>≥550</P></TD>
<TD>
<P align=center>≥56</P></TD>
<TD>
<P align=center>≥600</P></TD>
<TD>
<P align=center>—</P></TD>
<TD>
<P align=center>—</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBNi4Cr2-GT</P></TD>
<TD>
<P align=center>≥53</P></TD>
<TD>
<P align=center>≥550</P></TD>
<TD>
<P align=center>≥56</P></TD>
<TD>
<P align=center>≥600</P></TD>
<TD>
<P align=center>—</P></TD>
<TD>
<P align=center>—</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBCr9Ni5</P></TD>
<TD>
<P align=center>≥50</P></TD>
<TD>
<P align=center>≥500</P></TD>
<TD>
<P align=center>≥56</P></TD>
<TD>
<P align=center>≥600</P></TD>
<TD>
<P align=center>—</P></TD>
<TD>
<P align=center>—</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBCr2</P></TD>
<TD>
<P align=center>≥46</P></TD>
<TD>
<P align=center>≥450</P></TD>
<TD>
<P align=center>≥56</P></TD>
<TD>
<P align=center>≥600</P></TD>
<TD>
<P align=center>≤41</P></TD>
<TD>
<P align=center>≤400</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBCr8</P></TD>
<TD>
<P align=center>≥46</P></TD>
<TD>
<P align=center>≥450</P></TD>
<TD>
<P align=center>≥56</P></TD>
<TD>
<P align=center>≥600</P></TD>
<TD>
<P align=center>≤41</P></TD>
<TD>
<P align=center>≤400</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBCr12</P></TD>
<TD>
<P align=center>≥46</P></TD>
<TD>
<P align=center>≥450</P></TD>
<TD>
<P align=center>≥56</P></TD>
<TD>
<P align=center>≥600</P></TD>
<TD>
<P align=center>≤41</P></TD>
<TD>
<P align=center>≤400</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBCr15Mo</P></TD>
<TD>
<P align=center>≥46</P></TD>
<TD>
<P align=center>≥450</P></TD>
<TD>
<P align=center>≥58</P></TD>
<TD>
<P align=center>≥650</P></TD>
<TD>
<P align=center>≤41</P></TD>
<TD>
<P align=center>≤400</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBCr20Mo</P></TD>
<TD>
<P align=center>≥46</P></TD>
<TD>
<P align=center>≥450</P></TD>
<TD>
<P align=center>≥58</P></TD>
<TD>
<P align=center>≥650</P></TD>
<TD>
<P align=center>≤41</P></TD>
<TD>
<P align=center>≤400</P></TD></TR>
<TR>
<TD>
<P align=center>KmTBCr26</P></TD>
<TD>
<P align=center>≥46</P></TD>
<TD>
<P align=center>≥450</P></TD>
<TD>
<P align=center>≥56</P></TD>
<TD>
<P align=center>≥600</P></TD>
<TD>
<P align=center>≤41</P></TD>
<TD>
<P align=center>≤400</P></TD></TR></TBODY></TABLE>
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