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Hurricane forged 4340 steel connecting rods stock list in Febuary 2020

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AISI 4340 Steel VS 40CrNiMoA VS EN24 of Race connecting rod material

  • Author:illan zhang
  • Source:Hurricanerods.com
  • Release on :2017-06-09
4340 is a nickel-chromium-molybdenum alloy steel known for its toughness and its ability to attain high strengths in the heat-treated condition. It has very good fatigue resistance. APPLICATIONS OF AISI / SAE 4340. Like:
Commercial and military aircraft, automotive systems, forged hydraulic and other machine tool applications, forged steel crankshafts, forged conrods.
As a connecting rod factory since 2000, we use this kind of material into high performance connecting rod. There are many different names, most popular names include: 4340 steel(The United States), 40CrNiMoA(China), EN24(United Kingdom). When someone need to purchase this kind of material, supplier will convert to local name.

But Now pay attention, they are similar, or not same exactly. chemical composition of them as follows, you can find difference on this spreadsheet easily:

Our latest test report of rods material as follows, all material will be tested before machine, procedure like this:


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