美国标准耐热铸钢的钢号与化学成分（质量分数）（%）
<TABLE width=748 align=center border=1><TBODY>
<TR>
<TD colSpan=2>
<DIV align=center>钢号</DIV></TD>
<TD rowSpan=2>
<DIV align=center>类型</DIV></TD>
<TD rowSpan=2>
<DIV align=center>C </DIV></TD>
<TD rowSpan=2>
<DIV align=center>Si </DIV></TD>
<TD rowSpan=2>
<DIV align=center>Mn </DIV></TD>
<TD rowSpan=2>
<DIV align=center>P </DIV>
<P align=center>≤ </P></TD>
<TD rowSpan=2>
<DIV align=center>S </DIV>
<P align=center>≤ </P></TD>
<TD rowSpan=2>
<DIV align=center>Cr </DIV></TD>
<TD rowSpan=2>
<DIV align=center>Ni </DIV></TD>
<TD rowSpan=2>
<DIV align=center>Mo </DIV></TD></TR>
<TR>
<TD>
<DIV align=center>ASTM</DIV></TD>
<TD>
<DIV align=center>UNS</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HF</DIV></TD>
<TD>
<DIV align=center>J92603</DIV></TD>
<TD>
<DIV align=center>19Cr-9Ni </DIV></TD>
<TD>
<DIV align=center>0.20～0.40</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>18.0～23.0</DIV></TD>
<TD>
<DIV align=center>8.0～12.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HH</DIV></TD>
<TD>
<DIV align=center>J93503</DIV></TD>
<TD>
<DIV align=center>25Cr-12Ni </DIV></TD>
<TD>
<DIV align=center>0.20～0.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>24.0～28.0</DIV></TD>
<TD>
<DIV align=center>11.0～14.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HI</DIV></TD>
<TD>
<DIV align=center>J94003</DIV></TD>
<TD>
<DIV align=center>28Cr-15Ni</DIV></TD>
<TD>
<DIV align=center>0.20～0.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>26.0～30.0</DIV></TD>
<TD>
<DIV align=center>14.0～18.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HK</DIV></TD>
<TD>
<DIV align=center>J94224</DIV></TD>
<TD>
<DIV align=center>25Cr-20Ni</DIV></TD>
<TD>
<DIV align=center>0.20～0.60</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>24.0～28.0</DIV></TD>
<TD>
<DIV align=center>18.0～22.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HE</DIV></TD>
<TD>
<DIV align=center>J93403</DIV></TD>
<TD>
<DIV align=center>29Cr-9Ni</DIV></TD>
<TD>
<DIV align=center>0.20～0.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>26.0～30.0</DIV></TD>
<TD>
<DIV align=center>8.0～11.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HT</DIV></TD>
<TD>
<DIV align=center>J94605</DIV></TD>
<TD>
<DIV align=center>17Cr-35Ni</DIV></TD>
<TD>
<DIV align=center>0.35～0.75</DIV></TD>
<TD>
<DIV align=center>≤2.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>15.0～19.0</DIV></TD>
<TD>
<DIV align=center>33.0～37.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HU</DIV></TD>
<TD>
<DIV align=center>J95405</DIV></TD>
<TD>
<DIV align=center>19Cr-39Ni</DIV></TD>
<TD>
<DIV align=center>0.35～0.75</DIV></TD>
<TD>
<DIV align=center>≤2.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>17.0～21.0</DIV></TD>
<TD>
<DIV align=center>37.0～41.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HW</DIV></TD>
<TD>
<DIV align=center>—</DIV></TD>
<TD>
<DIV align=center>12Cr-60Ni</DIV></TD>
<TD>
<DIV align=center>0.35～0.75</DIV></TD>
<TD>
<DIV align=center>≤2.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>10.0～14.0</DIV></TD>
<TD>
<DIV align=center>58.0～62.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HX</DIV></TD>
<TD>
<DIV align=center>—</DIV></TD>
<TD>
<DIV align=center>17Cr-60Ni</DIV></TD>
<TD>
<DIV align=center>0.35～0.75</DIV></TD>
<TD>
<DIV align=center>≤2.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>15.0～19.0</DIV></TD>
<TD>
<DIV align=center>64.0～68.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HC</DIV></TD>
<TD>
<DIV align=center>J92605</DIV></TD>
<TD>
<DIV align=center>28Cr</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤1.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>26.0～30.0</DIV></TD>
<TD>
<DIV align=center>≤4.00</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HD</DIV></TD>
<TD>
<DIV align=center>J93005</DIV></TD>
<TD>
<DIV align=center>28Cr-5Ni</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤1.50</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>26.0～30.0</DIV></TD>
<TD>
<DIV align=center>4.0～7.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HL</DIV></TD>
<TD>
<DIV align=center>J94604</DIV></TD>
<TD>
<DIV align=center>29Cr-20Ni</DIV></TD>
<TD>
<DIV align=center>0.20～0.60</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>28.0～32.0</DIV></TD>
<TD>
<DIV align=center>18.0～22.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HN</DIV></TD>
<TD>
<DIV align=center>J94213</DIV></TD>
<TD>
<DIV align=center>20Cr-25Ni</DIV></TD>
<TD>
<DIV align=center>0.20～0.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>19.0～23.0</DIV></TD>
<TD>
<DIV align=center>23.0～27.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>HP</DIV></TD>
<TD>
<DIV align=center>J95705</DIV></TD>
<TD>
<DIV align=center>26Cr-35Ni</DIV></TD>
<TD>
<DIV align=center>0.35～0.75</DIV></TD>
<TD>
<DIV align=center>≤2.50</DIV></TD>
<TD>
<DIV align=center>≤2.00</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>0.04</DIV></TD>
<TD>
<DIV align=center>24～28</DIV></TD>
<TD>
<DIV align=center>33.0～37.0</DIV></TD>
<TD>
<DIV align=center>≤0.50</DIV></TD></TR></TBODY></TABLE>
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