4140 medium aluminum plate

Common raw materials

Forging display

CNC processing

4140 - 4140 Steel Plate | Kloeckner Metals

2  · The first “4” is 4140 indicates that the steel contains molybdenum at higher levels than other steels like the 1xxx series. The “1” in 4140

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Grade Guide: AISI 4140 Steel | Metal Supermarkets