Medium/high carbon low alloy steel for warm/cold forming

摘要

A medium/high carbon low alloy steel which can be cold formed by cold or warm forging and heat treated. The material consists essentially of:
<TableDetails id="tabla01" num="0001"><Table><Title /><tbl:tgroup cols="2" colsep="1" rowsep="0" xmlns:tbl="http://oasis-open.org/specs/soextblx"><tbl:colspec colnum="1" colname="col1" colwidth="78.75mm" /><tbl:colspec colnum="2" colname="col2" colwidth="78.75mm" /><tbl:thead valign="top"><tbl:row><tbl:entry namest="col1" nameend="col1" align="center"><![CDATA[<b>Element</b>]]></tbl:entry><tbl:entry namest="col2" nameend="col2" align="center"><![CDATA[<b>Weight Percent</b>]]></tbl:entry></tbl:row></tbl:thead><tbl:tbody valign="top"><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Carbon (C)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.45-0.65</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Manganese (Mn)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.35-0.45</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Chromium (Cr)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.70-0.80</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Nickel (Ni)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.35-0.50</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Molybdenum (Mo)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.15-0.30</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Titanium (Ti)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.01-0.02</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Aluminum (Al)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.01-0.02</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Silicon (Si)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.008-0.15</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Boron (B)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.001-0.003</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Iron (Fe)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">Balance</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Vanadium (V)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">Less than about 0.10</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Oxygen (O)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.002-0.005</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Nitrogen (N)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.001-0.008</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Copper (Cu)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">Less than about 0.35</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Zirconium (Zr)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">Less than about 0.01</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Antimony (Sb)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">Less than about 0.01</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Tin (Sn)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">Less than about 0.01</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Sulfur (S)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.001-0.010</tbl:entry></tbl:row><tbl:row><tbl:entry namest="col1" nameend="col1" align="left">Phosphorus (P)</tbl:entry><tbl:entry namest="col2" nameend="col2" align="left">about 0.001-0.02</tbl:entry></tbl:row></tbl:tbody></tbl:tgroup></Table></TableDetails>

The composition also defined by the following expressions based on weight percent:<MathDetails id="matha01"><MathText><![CDATA[ <img id="ia01" file="imga0001.tif" wi="65" he="16" img-content="math" img-format="tif" /> ]]></MathText></MathDetails><MathDetails id="matha02"><MathText><![CDATA[ <img id="ia02" file="imga0002.tif" wi="67" he="18" img-content="math" img-format="tif" /> ]]></MathText></MathDetails><MathDetails id="matha03"><MathText><![CDATA[ <img id="ia03" file="imga0003.tif" wi="94" he="20" img-content="math" img-format="tif" /> ]]></MathText></MathDetails><!-- EPO <DP n="8001"> --><MathDetails id="matha04"><MathText><![CDATA[ <img id="ia04" file="imga0004.tif" wi="92" he="18" img-content="math" img-format="tif" /> ]]></MathText></MathDetails><MathDetails id="matha05"><MathText><![CDATA[ <img id="ia05" file="imga0005.tif" wi="74" he="17" img-content="math" img-format="tif" /> ]]></MathText></MathDetails>

Moreover, it has been found that this material when quenched and then tempered at 400°F±25°F will exhibit surprising ductility, strength, toughness and hardness properties. The alloy disclosed herein is particularly useful in forming sockets for socket wrenches and needle-nosed pliers.