Alloy Steel Round Bar 4340
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Alloy Steel Round Bar 4340 is normally used for the aerospace automotive, and natural gas/petroleum/oil applications. 4340 steel offers high strength, impact control, and machinability.
We also carry 4340 round bar that is Vacuum Arc Remelted (VAR).
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Pricing and availability for this item changes frequently. Contact us now for a fast quote.
Pricing and availability for this item changes frequently. Contact us now for a fast quote.
SALE!
Huge Savings on Overstock Lengths - Ships from CA
- Dia. 0.4375"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $9.34 ea.
- 24″ (2 ft.) - $18.01 ea.
-
36″ (3 ft.)
- $25.51 ea.
- 48″ (4 ft.) - $30.65 ea.
- 72″ (6 ft.) - $44.96 ea.
- 96″ (8 ft.) - $59.96 ea.
- 144″ (12 ft.) - $89.94 ea.
- Custom Cut
Starting at
$9.34
$9.34
$9.34 ea.
- Dia. 0.5"
Alloy Steel Round Bar 4340-Annealed Cold Finish
Select...
- 12″ (1 ft.) - $11.42 ea.
- 24″ (2 ft.) - $21.93 ea.
-
36″ (3 ft.)
- $30.84 ea.
- 48″ (4 ft.) - $36.56 ea.
- 72″ (6 ft.) - $50.73 ea.
- 96″ (8 ft.) - $63.98 ea.
- 144″ (12 ft.) - $87.76 ea.
- Custom Cut
Starting at
$11.42
$11.42
$11.42 ea.
- Dia. 0.375"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $13.47 ea.
- 24″ (2 ft.) - $25.97 ea.
-
36″ (3 ft.)
- $36.77 ea.
- 48″ (4 ft.) - $44.19 ea.
- 72″ (6 ft.) - $61.92 ea.
- 96″ (8 ft.) - $78.68 ea.
- 144″ (12 ft.) - $112.21 ea.
- Custom Cut
Starting at
$13.47
$13.47
$13.47 ea.
- Dia. 0.5"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $14.35 ea.
- 24″ (2 ft.) - $27.63 ea.
-
36″ (3 ft.)
- $39.15 ea.
- 48″ (4 ft.) - $47.02 ea.
- 72″ (6 ft.) - $65.89 ea.
- 96″ (8 ft.) - $83.73 ea.
- 144″ (12 ft.) - $119.41 ea.
- Custom Cut
Starting at
$14.35
$14.35
$14.35 ea.
- Dia. 0.625"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $17.99 ea.
- 24″ (2 ft.) - $34.55 ea.
-
36″ (3 ft.)
- $48.58 ea.
- 48″ (4 ft.) - $57.58 ea.
- 72″ (6 ft.) - $79.89 ea.
- 96″ (8 ft.) - $117.17 ea.
- 144″ (12 ft.) - $159.77 ea.
- Custom Cut
Starting at
$17.99
$17.99
$17.99 ea.
- Dia. 0.75"
Alloy Steel Round Bar 4340-Annealed Cold Finish
Select...
- 12″ (1 ft.) - $20.11 ea.
- 24″ (2 ft.) - $38.63 ea.
-
36″ (3 ft.)
- $54.33 ea.
- 48″ (4 ft.) - $64.38 ea.
- 72″ (6 ft.) - $89.33 ea.
- 96″ (8 ft.) - $131.02 ea.
- 144″ (12 ft.) - $178.66 ea.
- Custom Cut
Starting at
$20.11
$20.11
$20.11 ea.
- Dia. 0.75"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $23.64 ea.
- 24″ (2 ft.) - $45.43 ea.
-
36″ (3 ft.)
- $63.97 ea.
- 48″ (4 ft.) - $76.03 ea.
- 72″ (6 ft.) - $105.70 ea.
- 96″ (8 ft.) - $133.52 ea.
- 144″ (12 ft.) - $189.15 ea.
- Custom Cut
Starting at
$23.64
$23.64
$23.64 ea.
- Dia. 1.125"
Alloy Steel Round Bar 4340-Annealed Hot Rolled
Select...
- 12″ (1 ft.) - $30.92 ea.
- 24″ (2 ft.) - $59.33 ea.
-
36″ (3 ft.)
- $83.45 ea.
- 48″ (4 ft.) - $98.90 ea.
- 72″ (6 ft.) - $137.21 ea.
- 96″ (8 ft.) - $201.25 ea.
- 144″ (12 ft.) - $274.42 ea.
- Custom Cut
Starting at
$30.92
$30.92
$30.92 ea.
- Dia. 1"
Alloy Steel Round Bar 4340-Annealed Hot Rolled
Select...
- 12″ (1 ft.) - $31.50 ea.
- 24″ (2 ft.) - $60.74 ea.
-
36″ (3 ft.)
- $86.01 ea.
- 48″ (4 ft.) - $103.32 ea.
- 72″ (6 ft.) - $144.78 ea.
- 96″ (8 ft.) - $184.00 ea.
- 144″ (12 ft.) - $262.38 ea.
- Custom Cut
Starting at
$31.50
$31.50
$31.50 ea.
- Dia. 0.875"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $33.71 ea.
- 24″ (2 ft.) - $65.00 ea.
-
36″ (3 ft.)
- $92.06 ea.
- 48″ (4 ft.) - $110.61 ea.
- 72″ (6 ft.) - $154.99 ea.
- 96″ (8 ft.) - $196.95 ea.
- 144″ (12 ft.) - $280.88 ea.
- Custom Cut
Starting at
$33.71
$33.71
$33.71 ea.
- Dia. 1.25"
Alloy Steel Round Bar 4340-Annealed Hot Rolled
Select...
- 12″ (1 ft.) - $37.22 ea.
- 24″ (2 ft.) - $71.46 ea.
-
36″ (3 ft.)
- $100.49 ea.
- 48″ (4 ft.) - $119.11 ea.
- 72″ (6 ft.) - $165.27 ea.
- 96″ (8 ft.) - $242.39 ea.
- 144″ (12 ft.) - $330.54 ea.
- Custom Cut
Starting at
$37.22
$37.22
$37.22 ea.
- Dia. 1"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $37.60 ea.
- 24″ (2 ft.) - $72.36 ea.
-
36″ (3 ft.)
- $102.15 ea.
- 48″ (4 ft.) - $122.02 ea.
- 72″ (6 ft.) - $170.26 ea.
- 96″ (8 ft.) - $215.68 ea.
- 144″ (12 ft.) - $306.48 ea.
- Custom Cut
Starting at
$37.60
$37.60
$37.60 ea.
- Dia. 0.875"
Alloy Steel Round Bar 4340-Annealed Cold Finish
Select...
- 12″ (1 ft.) - $39.35 ea.
- 24″ (2 ft.) - $75.92 ea.
-
36″ (3 ft.)
- $107.50 ea.
- 48″ (4 ft.) - $129.17 ea.
- 72″ (6 ft.) - $181.02 ea.
- 96″ (8 ft.) - $230.03 ea.
- 144″ (12 ft.) - $328.04 ea.
- Custom Cut
Starting at
$39.35
$39.35
$39.35 ea.
- Dia. 1.125"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $50.70 ea.
- 24″ (2 ft.) - $97.59 ea.
-
36″ (3 ft.)
- $137.77 ea.
- 48″ (4 ft.) - $164.57 ea.
- 72″ (6 ft.) - $229.60 ea.
- 96″ (8 ft.) - $290.83 ea.
- 144″ (12 ft.) - $413.30 ea.
- Custom Cut
Starting at
$50.70
$50.70
$50.70 ea.
SALE!
Huge Savings on Overstock Lengths - Ships from CA
- Dia. 1.188"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $53.70 ea.
- 24″ (2 ft.) - $103.55 ea.
-
36″ (3 ft.)
- $146.60 ea.
- 48″ (4 ft.) - $176.16 ea.
- 72″ (6 ft.) - $246.87 ea.
- 96″ (8 ft.) - $313.70 ea.
- 144″ (12 ft.) - $447.36 ea.
Starting at
$53.70
$53.70
$53.70 ea.
- Dia. 1.25"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $67.18 ea.
- 24″ (2 ft.) - $129.49 ea.
-
36″ (3 ft.)
- $183.38 ea.
- 48″ (4 ft.) - $220.33 ea.
- 72″ (6 ft.) - $308.74 ea.
- 96″ (8 ft.) - $392.33 ea.
- 144″ (12 ft.) - $559.53 ea.
- Custom Cut
Starting at
$67.18
$67.18
$67.18 ea.
- Dia. 1.5"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $67.31 ea.
- 24″ (2 ft.) - $129.53 ea.
-
36″ (3 ft.)
- $182.87 ea.
- 48″ (4 ft.) - $218.42 ea.
- 72″ (6 ft.) - $304.78 ea.
- 96″ (8 ft.) - $386.05 ea.
- 144″ (12 ft.) - $548.60 ea.
- Custom Cut
Starting at
$67.31
$67.31
$67.31 ea.
- Dia. 1.5"
Alloy Steel Round Bar 4340-Annealed Hot Rolled
Select...
- 12″ (1 ft.) - $71.29 ea.
- 24″ (2 ft.) - $137.45 ea.
-
36″ (3 ft.)
- $194.67 ea.
- 48″ (4 ft.) - $233.90 ea.
- 72″ (6 ft.) - $327.74 ea.
- 96″ (8 ft.) - $416.49 ea.
- 144″ (12 ft.) - $593.94 ea.
- Custom Cut
Starting at
$71.29
$71.29
$71.29 ea.
- Dia. 2"
Alloy Steel Round Bar 4340-Annealed Hot Rolled
Select...
- 12″ (1 ft.) - $89.62 ea.
- 24″ (2 ft.) - $173.67 ea.
-
36″ (3 ft.)
- $252.15 ea.
- 48″ (4 ft.) - $325.04 ea.
- 72″ (6 ft.) - $454.09 ea.
- 96″ (8 ft.) - $560.86 ea.
- 144″ (12 ft.) - $788.70 ea.
- Custom Cut
Starting at
$89.62
$89.62
$89.62 ea.
- Dia. 1.375"
Alloy Steel Round Bar 4340-Normalized Cold Finish
Select...
- 12″ (1 ft.) - $95.01 ea.
- 24″ (2 ft.) - $182.86 ea.
-
36″ (3 ft.)
- $258.12 ea.
- 48″ (4 ft.) - $308.32 ea.
- 72″ (6 ft.) - $430.22 ea.
- 96″ (8 ft.) - $544.92 ea.