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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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11mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24545

11mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24545

Pack of 1

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
$260.18
$260.18 ea.

Dimensions

  • Diameter: 11mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-desk24545

12mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24547

12mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24547

Pack of 1

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
$192.12
$192.12 ea.

Dimensions

  • Diameter: 12mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24547

12mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24546

12mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24546

Pack of 2

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
$192.13
$192.13 ea.

Dimensions

  • Diameter: 12mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24546

14mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24548

14mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24548

Pack of 1

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
$164.72
$164.72 ea.

Dimensions

  • Diameter: 14mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24548

14mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24549

14mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24549

Pack of 1

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
$329.47
$329.47 ea.

Dimensions

  • Diameter: 14mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24549

15mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24551

15mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24551

Pack of 1

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
$334.81
$334.81 ea.

Dimensions

  • Diameter: 15mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24551

15mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24550

15mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24550

Pack of 1

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
$167.44
$167.44 ea.

Dimensions

  • Diameter: 15mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24550

16mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24553

16mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24553

Pack of 1

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
$310.63
$310.63 ea.

Dimensions

  • Diameter: 16mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24553

16mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24552

16mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24552

Pack of 1

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
$155.30
$155.30 ea.

Dimensions

  • Diameter: 16mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24552

18mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24554

18mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24554

Pack of 1

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
$218.80
$218.80 ea.

Dimensions

  • Diameter: 18mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24554

18mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24555

18mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24555

Pack of 1

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
$364.68
$364.68 ea.

Dimensions

  • Diameter: 18mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

MTR FREE MTR Available
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-desk24555

19mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24556

19mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24556

Pack of 1

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
$206.08
$206.08 ea.

Dimensions

  • Diameter: 19mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24556

19mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24557

19mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24557

Pack of 1

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
$343.47
$343.47 ea.

Dimensions

  • Diameter: 19mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24557

20mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24558

20mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24558

Pack of 1

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
$201.80
$201.80 ea.

Dimensions

  • Diameter: 20mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24558

20mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24559

20mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24559

Pack of 1

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
$406.57
$406.57 ea.

Dimensions

  • Diameter: 20mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24559

25mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24560

25mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24560

Pack of 1

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
$236.15
$236.15 ea.

Dimensions

  • Diameter: 25mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24560

25mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24561

25mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24561

Pack of 1

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
$393.55
$393.55 ea.

Dimensions

  • Diameter: 25mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24561

30mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24562

30mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24562

Pack of 1

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
$322.57
$322.57 ea.

Dimensions

  • Diameter: 30mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24562

30mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24563

30mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24563

Pack of 1

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
$537.64
$537.64 ea.

Dimensions

  • Diameter: 30mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322 , ASTM-A295 , ASTM-A434 , ASTM-A29 , ASTM-A193

Key Features

MTR FREE MTR Available
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-desk24563

35mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 26923

35mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 26923

Pack of 1

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
$375.42
$375.42 ea.

Dimensions

  • Diameter: 35mm
Click for more details
alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A29 , ASTM-A193-B7 , ASTM-A295 , ASTM-A322 , ASTM-A434

Key Features

MTR FREE MTR Available
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-desk26923

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