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4340 Flat Bar — Listings

All 4340 Flat Bar listings on M-EX.

All 4340 Forms Alloy Steel
Grade Details
Grade4340
StandardSAE
DescriptionNickel chrome molybdenum steel, very high strength
ApplicationsAircraft parts, heavy duty gears, crankshafts
Equivalent Grades
Grade Standard Region
34CrNiMo6 DIN/EN Europe
EN24 BS970 UK
SNCM439 JIS Japan

Active 4340 Flat Bar Listings 3

4340 Flat Bar
0.700 MT  ·  Closes 06 Aug 2026
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4340 Flat Bar
2.000 MT  ·  Closes 06 Aug 2026
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4340 Flat Bar
1.300 MT  ·  Closes 07 Aug 2026
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Related: All Flat Bar grades · Alloy Steel