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Alloy Steel Round Bar 4140 Heat Treat

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Alloy Steel 4140 Product Guide Product   | Alloy Steel 4140 Round Bar Tolerances product

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.


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5 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002448

5 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002448

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Dimensions

  • Diameter: 5.5"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $501.95 ea.
  • 24″ (2 ft.) - $1,003.91 ea.
  • 72″ (6 ft.) - $3,011.71 ea.
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

$501.95 ea.
$501.95 for 1
Sold and shipped by MSP Metals

4 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002457

4 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002457

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Dimensions

  • Diameter: 4.5"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $336.01 ea.
  • 24″ (2 ft.) - $672.03 ea.
  • 72″ (6 ft.) - $2,016.10 ea.
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

$336.01 ea.
$336.01 for 1
Sold and shipped by MSP Metals

4 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002459

4 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002459

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Dimensions

  • Diameter: 4.25"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $299.72 ea.
  • 24″ (2 ft.) - $599.44 ea.
  • 72″ (6 ft.) - $1,798.32 ea.
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

$299.72 ea.
$299.72 for 1
Sold and shipped by MSP Metals

1 3/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002460

1 3/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002460

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Dimensions

  • Diameter: 1.375"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $31.65 ea.
  • 24″ (2 ft.) - $63.30 ea.
  • 36″ (3 ft.) - $94.95 ea.
  • 48″ (4 ft.) - $126.60 ea.
  • 72″ (6 ft.) - $189.89 ea.
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.
Create Custom Cut

QTY

$31.65 ea.
$31.65 for 1
Sold and shipped by MSP Metals

6 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002461

6 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002461

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Dimensions

  • Diameter: 6.5"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $701.07 ea.
  • 24″ (2 ft.) - $1,402.15 ea.
  • 72″ (6 ft.) - $4,206.44 ea.
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

$701.07 ea.
$701.07 for 1
Sold and shipped by MSP Metals

1 3/4" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002465

1 3/4" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002465

Click for more details

Dimensions

  • Diameter: 1.75"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $51.26 ea.
  • 24″ (2 ft.) - $102.54 ea.
  • 36″ (3 ft.) - $153.80 ea.
  • 48″ (4 ft.) - $205.07 ea.
  • 72″ (6 ft.) - $307.60 ea.
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.
Create Custom Cut

QTY

$51.26 ea.
$51.26 for 1
Sold and shipped by MSP Metals

3 1/2" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002467

3 1/2" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002467

Click for more details

Dimensions

  • Diameter: 3.5"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $205.07 ea.
  • 24″ (2 ft.) - $410.14 ea.
  • 72″ (6 ft.) - $1,230.41 ea.
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.
Create Custom Cut

QTY

$205.07 ea.
$205.07 for 1
Sold and shipped by MSP Metals

2 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002468

2 1/2" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002468

Click for more details

Dimensions

  • Diameter: 2.5"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $99.86 ea.
  • 24″ (2 ft.) - $199.73 ea.
  • 36″ (3 ft.) - $299.59 ea.
  • 48″ (4 ft.) - $399.45 ea.
  • 72″ (6 ft.) - $599.19 ea.
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

$99.86 ea.
$99.86 for 1
Sold and shipped by MSP Metals

2 3/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002470

2 3/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002470

Click for more details

Dimensions

  • Diameter: 2.75"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $117.71 ea.
  • 24″ (2 ft.) - $235.43 ea.
  • 36″ (3 ft.) - $353.14 ea.
  • 48″ (4 ft.) - $470.85 ea.
  • 72″ (6 ft.) - $706.29 ea.
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

$117.71 ea.
$117.71 for 1
Sold and shipped by MSP Metals

2 1/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002471

2 1/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002471

Click for more details

Dimensions

  • Diameter: 2.125"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $75.60 ea.
  • 24″ (2 ft.) - $151.19 ea.
  • 36″ (3 ft.) - $226.78 ea.
  • 48″ (4 ft.) - $302.37 ea.
  • 72″ (6 ft.) - $453.56 ea.
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.
Create Custom Cut

QTY

$75.60 ea.
$75.60 for 1
Sold and shipped by MSP Metals

1 3/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002475

1 3/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002475

Click for more details

Dimensions

  • Diameter: 1.75"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $47.67 ea.
  • 24″ (2 ft.) - $95.34 ea.
  • 36″ (3 ft.) - $143.01 ea.
  • 48″ (4 ft.) - $190.67 ea.
  • 72″ (6 ft.) - $286.02 ea.
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

$47.67 ea.
$47.67 for 1
Sold and shipped by MSP Metals

2 5/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002483

2 5/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002483

Click for more details

Dimensions

  • Diameter: 2.625"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $115.35 ea.
  • 24″ (2 ft.) - $230.70 ea.
  • 36″ (3 ft.) - $346.05 ea.
  • 48″ (4 ft.) - $461.41 ea.
  • 72″ (6 ft.) - $692.11 ea.
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.
Create Custom Cut

QTY

$115.35 ea.
$115.35 for 1
Sold and shipped by MSP Metals

3 5/8" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002484

3 5/8" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002484

Click for more details

Dimensions

  • Diameter: 3.625"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $204.54 ea.
  • 24″ (2 ft.) - $409.08 ea.
  • 72″ (6 ft.) - $1,227.25 ea.
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

$204.54 ea.
$204.54 for 1
Sold and shipped by MSP Metals

3/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002485

3/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002485

Click for more details

Dimensions

  • Diameter: 0.375"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $5.22 ea.
  • 24″ (2 ft.) - $10.43 ea.
  • 36″ (3 ft.) - $15.65 ea.
  • 48″ (4 ft.) - $20.88 ea.
  • 72″ (6 ft.) - $31.31 ea.
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.
Create Custom Cut

QTY

$5.22 ea.
$5.22 for 1
Sold and shipped by MSP Metals

2 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated - 
Part #: mp-00002486

2 1/4" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002486

Click for more details

Dimensions

  • Diameter: 2.25"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $78.81 ea.
  • 24″ (2 ft.) - $157.60 ea.
  • 36″ (3 ft.) - $236.41 ea.
  • 48″ (4 ft.) - $315.20 ea.
  • 72″ (6 ft.) - $472.80 ea.
  • 144″ (12 ft.) - $621.88 ea.
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

$78.81 ea.
$78.81 for 1
Sold and shipped by MSP Metals

2 3/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002488

2 3/8" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002488

Click for more details

Dimensions

  • Diameter: 2.375"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $94.43 ea.
  • 24″ (2 ft.) - $188.86 ea.
  • 36″ (3 ft.) - $283.27 ea.
  • 48″ (4 ft.) - $377.70 ea.
  • 72″ (6 ft.) - $566.55 ea.
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.
Create Custom Cut

QTY

$94.43 ea.
$94.43 for 1
Sold and shipped by MSP Metals

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

Click for more details

Dimensions

  • Diameter: 3"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $140.10 ea.
  • 24″ (2 ft.) - $280.18 ea.
  • 36″ (3 ft.) - $420.27 ea.
  • 48″ (4 ft.) - $560.36 ea.
  • 72″ (6 ft.) - $840.54 ea.
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.
Create Custom Cut

QTY

$140.10 ea.
$140.10 for 1
Sold and shipped by MSP Metals

3" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002487

3" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002487

Click for more details

Dimensions

  • Diameter: 3"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $150.67 ea.
  • 24″ (2 ft.) - $301.32 ea.
  • 36″ (3 ft.) - $451.99 ea.
  • 48″ (4 ft.) - $602.65 ea.
  • 72″ (6 ft.) - $903.98 ea.
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.
Create Custom Cut

QTY

$150.67 ea.
$150.67 for 1
Sold and shipped by MSP Metals

1" Alloy Steel Round Bar 4140 Cold Finished Heat Treated - 
Part #: mp-00002410

1" Alloy Steel Round Bar 4140 Cold Finished Heat Treated -
Part #: mp-00002410

Click for more details

Dimensions

  • Diameter: 1"
  • Ships In: 1 Business Day
See all available dimensions for this product
  • 12″ (1 ft.) - $16.75 ea.
  • 24″ (2 ft.) - $33.48 ea.
  • 36″ (3 ft.) - $50.23 ea.
  • 48″ (4 ft.) - $66.96 ea.
  • 72″ (6 ft.) - $100.44 ea.
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.
Create Custom Cut

QTY

$16.75 ea.
$16.75 for 1
Sold and shipped by MSP Metals
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