4340 Forging — Listings

All 4340 Forging listings on M-EX.

All 4340 Forms Alloy Steel

Grade Details

Grade	4340
Standard	SAE
Description	Nickel chrome molybdenum steel, very high strength
Applications	Aircraft parts, heavy duty gears, crankshafts

Equivalent Grades

Active 4340 Forging Listings 2

4340 Forging

1.900 MT · Closes 18 May 2026

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4340 Forging

1.800 MT · Closes 27 May 2026

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Related: All Forging grades · Alloy Steel