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SAE J404:2009 4340 Round Bar Listings

All SAE J404:2009 4340 Round Bar listings on M-EX.

All SAE J404:2009 4340 Forms Alloy Steel
Grade Details
GradeSAE J404:2009 4340
Standard SAE J404:2009
DescriptionNickel-chromium-molybdenum alloy steel SAE 4340 (UNS G43400) to SAE J404 JAN2009, a chemistry-only grade. Carbon 0.38-0.43% and manganese 0.60-0.80%.
ApplicationsAircraft parts, heavy duty gears, crankshafts
Equivalent Grades
Grade Standard Region Live Round Bar on M-EX
EN 10083-3 34CrNiMo6 EN 10083-3 Europe 3 listings, 0 RFQs →
BS 970 EN24 BS 970 UK 8 listings, 18 RFQs →
JIS G4103 SNCM439 JIS G4103 Japan 3 listings, 0 RFQs →
SAE J404 E4340 SAE J404 USA No activity yet
SAE J404 4340 SAE J404 USA No activity yet
GB/T 3077 40CrNi2Mo GB/T 3077 China No activity yet
Market Snapshot

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Updated 16 Oct 2026

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7D Offer Price
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15D Offer Price
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30D Offer Price
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Supply & Demand: Round Bar See Full Supply & Demand →
SAE J404:2009 4340 Round Bar In Demand
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Active SAE J404:2009 4340 Round Bar Listings (For Sale) 11

SAE J404:2009 4340 Round Bar
5.500 MT  ·  Closes 04 Nov 2026
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SAE J404:2009 4340 Round Bar
2.500 MT  ·  Closes 01 Nov 2026
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SAE J404:2009 4340 Round Bar
4.500 MT  ·  Closes 28 Oct 2026
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SAE J404:2009 4340 Round Bar
2.900 MT  ·  Closes 28 Oct 2026
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SAE J404:2009 4340 Round Bar
3.800 MT  ·  Closes 28 Oct 2026
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SAE J404:2009 4340 Round Bar
1.400 MT  ·  Closes 28 Oct 2026
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SAE J404:2009 4340 Round Bar
0.600 MT  ·  Closes 30 Oct 2026
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SAE J404:2009 4340 Round Bar
2.400 MT  ·  Closes 30 Oct 2026
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SAE J404:2009 4340 Round Bar
4.300 MT  ·  Closes 30 Oct 2026
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SAE J404:2009 4340 Round Bar
1.600 MT  ·  Closes 30 Oct 2026
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SAE J404:2009 4340 Round Bar
1.100 MT  ·  Closes 30 Oct 2026
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Buyer RFQs for SAE J404:2009 4340 Round Bar 14

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SAE J404:2009 4340 Round Bar
1.000 MT  ·  Closes 03 Nov 2026
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SAE J404:2009 4340 Round Bar
6.700 MT  ·  Closes 03 Nov 2026
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SAE J404:2009 4340 Round Bar
2.200 MT  ·  Closes 03 Nov 2026
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SAE J404:2009 4340 Round Bar
1.400 MT  ·  Closes 28 Oct 2026
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SAE J404:2009 4340 Round Bar
1.400 MT  ·  Closes 31 Oct 2026
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SAE J404:2009 4340 Round Bar
2.700 MT  ·  Closes 31 Oct 2026
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SAE J404:2009 4340 Round Bar
2.100 MT  ·  Closes 31 Oct 2026
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SAE J404:2009 4340 Round Bar
2.500 MT  ·  Closes 29 Oct 2026
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SAE J404:2009 4340 Round Bar
3.100 MT  ·  Closes 29 Oct 2026
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SAE J404:2009 4340 Round Bar
1.800 MT  ·  Closes 25 Oct 2026
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SAE J404:2009 4340 Round Bar
2.500 MT  ·  Closes 25 Oct 2026
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SAE J404:2009 4340 Round Bar
3.100 MT  ·  Closes 25 Oct 2026
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SAE J404:2009 4340 Round Bar
6.600 MT  ·  Closes 25 Oct 2026
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SAE J404:2009 4340 Round Bar
0.700 MT  ·  Closes 25 Oct 2026
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Related: All Round Bar grades · Alloy Steel