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<title><![CDATA[EC21 Product Catalogs - hardening process]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/hardening_process--2846/1/hardening process.html]]></link><item>
<title><![CDATA[H13 Tool Steel Round Bar/1.2344/SKD61/4Cr5MoSiV1 Steel Plate]]></title><link><![CDATA[https://otaisteel.en.ec21.com/H13_Tool_Steel_Round_Bar--9723517_9723518.html]]></link><description><![CDATA[hardenability and great toughness.
The molybdenum and vanadium act as strengthening agents while the chromium content helps the H-13 tool steel to withstand softening when used at high temperatures. ]]></description><pubDate><![CDATA[20250306]]></pubDate></item>
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<title><![CDATA[4340 Steel | Alloy Steel 4340 Steel | Good Toughness 4340 Steel Round Bars]]></title><link><![CDATA[https://songshunsteel.en.ec21.com/4340_Steel_Alloy_Steel_4340--11800270_11800363.html]]></link><description><![CDATA[Process
Stress Relieving
For pre-hardened steel stress relieving is achieved by heating steel 4340 to between 500 to 550°C. Heat to 600 °C – 650 °C, hold until temperature is uniform throughout ]]></description><pubDate><![CDATA[20230601]]></pubDate></item>
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<title><![CDATA[ANSI 4140 DIN 1.7225 Steel | Moderate Hardenability ANSI 4140 DIN 1.7225 Steel Bars]]></title><link><![CDATA[https://4340steelplate.en.ec21.com/ANSI_4140_DIN_1.7225_Steel--11550548_11592275.html]]></link><description><![CDATA[What is AISI 4140 Steel?
AISI 4140 alloy steel round bar sheet plate belongs to medium hardenability steel.AISI 4140 steel round bar has high fatigue strength and low notch sensitivity. Low-temperatu]]></description><pubDate><![CDATA[20220624]]></pubDate></item>
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<title><![CDATA[70MnMoCr8 1.2824 Alloy Cold Work Tool Steel]]></title><link><![CDATA[https://fushunharrislee.en.ec21.com/70MnMoCr8_1.2824_Alloy_Cold_Work--11359578_11578110.html]]></link><description><![CDATA[Hardening test
Austenitizing temperature °C (±10 °C)
Quenching medium
Tempering temperature °C (±10 °C)
Hardness HRC min.
248
835
air
180
58
Mill′s test certificate 
EN 10204/3.1 with all rel]]></description><pubDate><![CDATA[20220530]]></pubDate></item>

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