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4340 Round Bar — Listings

All 4340 Round 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 Round Bar Listings 25

4340 Round Bar
0.800 MT  ·  Closes 07 Aug 2026
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4340 Round Bar
5.200 MT  ·  Closes 09 Aug 2026
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4340 Round Bar
1.100 MT  ·  Closes 07 Aug 2026
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4340 Round Bar
1.900 MT  ·  Closes 08 Aug 2026
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4340 Round Bar
2.900 MT  ·  Closes 05 Aug 2026
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4340 Round Bar
2.600 MT  ·  Closes 05 Aug 2026
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4340 Round Bar
1.800 MT  ·  Closes 09 Aug 2026
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4340 Round Bar
1.800 MT  ·  Closes 10 Aug 2026
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4340 Round Bar
0.900 MT  ·  Closes 10 Aug 2026
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4340 Round Bar
2.600 MT  ·  Closes 07 Aug 2026
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4340 Round Bar
3.100 MT  ·  Closes 10 Aug 2026
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4340 Round Bar
1.700 MT  ·  Closes 05 Aug 2026
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4340 Round Bar
3.600 MT  ·  Closes 06 Aug 2026
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4340 Round Bar
2.600 MT  ·  Closes 08 Aug 2026
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4340 Round Bar
4.100 MT  ·  Closes 09 Aug 2026
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4340 Round Bar
5.000 MT  ·  Closes 09 Aug 2026
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4340 Round Bar
1.600 MT  ·  Closes 10 Aug 2026
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4340 Round Bar
1.900 MT  ·  Closes 07 Aug 2026
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4340 Round Bar
5.900 MT  ·  Closes 07 Aug 2026
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4340 Round Bar
5.100 MT  ·  Closes 11 Aug 2026
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4340 Round Bar
1.900 MT  ·  Closes 09 Aug 2026
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4340 Round Bar
1.400 MT  ·  Closes 06 Aug 2026
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4340 Round Bar
0.800 MT  ·  Closes 07 Aug 2026
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4340 Round Bar
4.400 MT  ·  Closes 06 Aug 2026
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4340 Round Bar
2.700 MT  ·  Closes 06 Aug 2026
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Related: All Round Bar grades · Alloy Steel