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Alloy Steel 4150, also sold under the name AISI/SAE 4150, is a high-carbon alloy that includes chromium, manganese, and molybdenum. This tough steel alloy offers uniform strength, wear resistance, and great hardness. It is important to note that Alloy Steel 4150 must be heat-treated to be suitable for machining. The weldability of Alloy Steel 4150 is high and can be achieved through most commercial methods. The finest of grain size relates directly with the temperature of forging.
This alloy is used as forgings in the aerospace and oil and gas industries, and has myriad uses in the automotive, agricultural and defense industries, Typical uses are forged gears, shafts, and spindles.
AISI or SAE 4150 grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. Its chemical composition is as follows:
| CHEMICAL ANALYSIS | |
|---|---|
| C% | Carbon 0.48 – 0.53 |
| Mn% | Manganese 0.75 – 1.00 |
| P% | Phosphorus 0.035 max |
| S% | Sulfur 0.040 max |
| Si% | Silicon 0.20 – 0.35 |
| Cr% | Chromium 0.80 – 1.10 |
| Mo% | Molybdenum 0.15 – 0.25 |
Liaocheng Economic and Technological Development Zone, Shandong Province, China
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