What does AISI4340 means?
As we know, the kind of steel materials is innumerable. I’d like to share the AISI4340 with you, AISI4340 is 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, also, it maintaining wear resistance. Let’s talk about the application about the 4340, it’s mainly applying in Commercial and military aircraft, automotive systems, forged hydraulic and other machine tool applications, forged steel crankshafts.
The demand of the AISI4340 is huge in South America and North America, especially in South America, we receive many emails about order inquiry every year, we have many clients in South America, they are very interested in AISI4340, and once order, try again .we have good relationship with our clients, we’ll visit our clients every year for further cooperation. also, clients will arrange a schedule to visit our mill, so we are familiar with each other.
| CHEMICAL ANALYSIS | |
| C% | Carbon 0.38 – 0.43 |
| Mn% | Manganese 0.6 – 0.8 max |
| P% | Phosphorus 0.035 max |
| S% | Sulfur 0.040 max |
| Si% | Silicon 0.15 – 0.3 |
| Ni% | Nickel 1.65 – 2.0 |
| Cr% | Chromium 0.7 – 0.9 |
| Mo% | Molybdenum 0.2 – 0.3 |
