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Alloy Steel Round Bar 4340

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24-07-2025 - alloy steel bar-round 4340 - 1000x1000superZoom-main

Alloy Steel Round Bar 4340

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).

 

Material Properties

Link Icon Alloy Steel 4340 Product Guide | Link Icon Alloy Steel 4340 Round Bar Tolerances

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1 1/4" Alloy Steel Round Bar 4340-Annealed Hot Rolled Part # 25267

1 1/4" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25267
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$41.41 for 1
$41.41 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415(call for availability) , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
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View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk25267

1 1/8" Alloy Steel Round Bar 4340-Annealed Hot Rolled Part # 25266

1 1/8" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25266
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$41.94 for 1
$41.94 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415(call for availability) , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk25266

3 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled Part # 25270

3 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25270
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$446.71 for 1
$446.71 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415(call for availability) , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk25270

1 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled Part # 25268

1 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25268
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$55.61 for 1
$55.61 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415(call for availability) , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk25268

2" Alloy Steel Round Bar 4340-Annealed Hot Rolled Part # 25269

2" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25269
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$62.63 for 1
$62.63 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415(call for availability) , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk25269

7/8" Alloy Steel Round Bar 4340-Annealed Cold Finish Part # 25264

7/8" Alloy Steel Round Bar 4340-Annealed Cold Finish -
Part #: 25264
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$41.04 for 1
$41.04 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , ASTM-A108 , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-desk25264

1/2" Alloy Steel Round Bar 4340-Annealed Cold Finish Part # 25262

1/2" Alloy Steel Round Bar 4340-Annealed Cold Finish -
Part #: 25262
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$9.33 for 1
$9.33 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , ASTM-A108 , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-desk25262

1" Alloy Steel Round Bar 4340-Annealed Hot Rolled Part # 25265

1" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 25265
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$51.27 for 1
$51.27 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415(call for availability) , AMS-6484(call for availability) , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk25265

3/4" Alloy Steel Round Bar 4340-Annealed Cold Finish Part # 25263

3/4" Alloy Steel Round Bar 4340-Annealed Cold Finish -
Part #: 25263
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$29.19 for 1
$29.19 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-desk25263

3" Alloy Steel Round Bar 4340-Normalized Rough Turned Part # 7406

3" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7406
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$237.18 for 1
$237.18 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , AMS-6484 , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk7406

3 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned -  Part # 7408

3 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned-
Part #: 7408
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4" Alloy Steel Round Bar 4340-Normalized Rough Turned Part # 7410

4" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7410
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$378.49 for 1
$378.49 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , AMS-6484 , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk7410

4 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned -  Part # 7411

4 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned-
Part #: 7411
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

5" Alloy Steel Round Bar 4340-Normalized Rough Turned Part # 7413

5" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7413
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$966.31 for 1
$966.31 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , AMS-6484 , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk7413

3/4" Alloy Steel Round Bar 4340-Normalized Cold Finish Part # 7388

3/4" Alloy Steel Round Bar 4340-Normalized Cold Finish -
Part #: 7388
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$36.64 for 1
$36.64 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , AMS-6415 , ASTM-A108 , AMS-6484 , ASTM-A29

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom-desk7388

6" Alloy Steel Round Bar 4340-Normalized Rough Turned Part # 27142

6" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 27142
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$1,055.96 for 1
$1,055.96 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk27142

8" Alloy Steel Round Bar 4340-Annealed Rough Turned -  Part # 27846

8" Alloy Steel Round Bar 4340-Annealed Rough Turned-
Part #: 27846
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

10" Alloy Steel Round Bar 4340-Hot Rolled Quenched & Tempered -  Part # 27854

10" Alloy Steel Round Bar 4340-Hot Rolled Quenched & Tempered-
Part #: 27854
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

9" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered -  Part # 28318

9" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 28318
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

3 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered -  Part # 28458

3 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 28458
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

10" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered -  Part # 28484

10" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 28484
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

3 1/2" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered -  Part # 28889

3 1/2" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 28889
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" Alloy Steel Round Bar 4340-Normalized Rough Turned -  Part # 21764

1 1/4" Alloy Steel Round Bar 4340-Normalized Rough Turned-
Part #: 21764
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

6 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned Part # 7419

6 1/2" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 7419
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$916.38 for 1
$916.38 ea.
Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom-desk7419

8" Alloy Steel Round Bar 4340-Normalized Rough Turned -  Part # 7424

8" Alloy Steel Round Bar 4340-Normalized Rough Turned-
Part #: 7424
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

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