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Alloy Steel Round Bar 4140

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14-08-2025 - alloy steel bar-round 4140 - 1000x1000superZoom-main

Alloy Steel Round Bar 4140

Alloy Steel Round Bar 4140 is normally used for heavy-duty industrial applications. Also referred to as Chromoly steel, 4140 is known for strength, resistance to fracturing, abrasion, and impact in high stress applications.

Material Properties

Link Icon Alloy Steel 4140 Product Guide | Link Icon Alloy Steel 4140 Round Bar Tolerances

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2 1/4" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15475

2 1/4" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15475
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.

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$82.94 for 1
$82.94 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15475

1/2" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15484

1/2" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15484
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.

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$5.23 for 1
$5.23 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15484

9/16" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15485

9/16" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15485
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.

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$16.55 for 1
$16.55 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15485

5/8" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15486

5/8" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15486
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.

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$9.04 for 1
$9.04 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15486

11/16" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15487

11/16" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15487
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

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$20.82 for 1
$20.82 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15487

2" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 10587

2" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 10587
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
$76.60 for 1
$76.60 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk10587

1 3/4" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 14538

1 3/4" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 14538
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
$61.96 for 1
$61.96 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk14538

2 3/4" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15492

2 3/4" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15492
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
$128.56 for 1
$128.56 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

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View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15492

1 5/8" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 17849

1 5/8" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 17849
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
$71.30 for 1
$71.30 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}

Key Features

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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk17849

1" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 19799

1" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 19799
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
$22.11 for 1
$22.11 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk19799

1 1/4" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 19800

1 1/4" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 19800
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
$37.30 for 1
$37.30 ea.
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk19800

3/4" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15488

3/4" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15488
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
$10.36 for 1
$10.36 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15488

7/8" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15489

7/8" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15489
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
$15.69 for 1
$15.69 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15489

1 1/2" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15490

1 1/2" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15490
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
$45.64 for 1
$45.64 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15490

1 7/8" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 15491

1 7/8" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 15491
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
$70.57 for 1
$70.57 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk15491

2 3/4" Alloy Steel Round Bar 4140-Annealed Hot Rolled Part # 26220

2 3/4" Alloy Steel Round Bar 4140-Annealed Hot Rolled -
Part #: 26220
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
$137.95 for 1
$137.95 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk26220

2 1/2" Alloy Steel Round Bar 4140-Annealed Cold Finish Part # 20920

2 1/2" Alloy Steel Round Bar 4140-Annealed Cold Finish -
Part #: 20920
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
$105.60 for 1
$105.60 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk20920

7/8" Alloy Steel Round Bar 4140 Cold Finish Heat Treated Part # mp-00002395

7/8" Alloy Steel Round Bar 4140 Cold Finish Heat Treated -
Part #: mp-00002395
Sold & Shipped by MSP Metals
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
$20.33 for 1
$20.33 ea.
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002395

2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002391

2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002391
Sold & Shipped by MSP Metals
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
$83.65 for 1
$83.65 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002391

3/4" Alloy Steel Round Bar 4140 Cold Finish Heat Treated Part # mp-00002397

3/4" Alloy Steel Round Bar 4140 Cold Finish Heat Treated -
Part #: mp-00002397
Sold & Shipped by MSP Metals
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
$17.70 for 1
$17.70 ea.
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002397

3" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002398

3" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002398
Sold & Shipped by MSP Metals
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
$188.25 for 1
$188.25 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002398

3 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002399

3 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002399
Sold & Shipped by MSP Metals
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
$258.88 for 1
$258.88 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002399

4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002400

4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002400
Sold & Shipped by MSP Metals
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
$334.66 for 1
$334.66 ea.
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002400

3 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002402

3 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002402
Sold & Shipped by MSP Metals
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
$220.92 for 1
$220.92 ea.
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
View more product details View more product details
View more product details Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002402

1 1/2" Alloy Steel Round Bar 4140 Cold Finish Heat Treated Part # mp-00002404

1 1/2" Alloy Steel Round Bar 4140 Cold Finish Heat Treated -
Part #: mp-00002404
Sold & Shipped by MSP Metals
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
$50.60 for 1
$50.60 ea.
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT DFARS Compliant MTR MTR AVAILABLE product return Non-returnable
View more product details View more product details
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-deskmp-00002404

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