Shop all Products
Explore OLM Rewards

Open for Orders 24/7!

Deals
Get a Quick Quote!
round-bar-large-drillrod-new-min-4superZoom

Alloy Steel Round Bar

-272 Products

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

We carry Alloy Steel Round Bar in 4130 | 4140 | 4330 | 4340 | 8620 | 9310. Most of our Alloy Steel round bar/rod is available in full size and custom cut lengths.

Marketplace Icon Defense Grade Store

Sort by

Size
  • Size
  • Price:Low to High
  • Product Name: A to Z
  • Product Name: Z to A
  • Relevance
  • Price:High to Low

Close

Refine Your Results

Clear Search

Filters

Material

Alloy/Type

Production Method

Domestic

DFARS

seller

Shape

Can't find what you need?

Contact our experienced US-based customer service team for hard-to-source materials.


6" Alloy Steel Round Bar 4340 VAR-Normalized Part # 22982

6" Alloy Steel Round Bar 4340 VAR-Normalized -
Part #: 22982
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $1,216.21 ea.
  • 24″ (2 ft.) - $2,298.78 ea.
  • 36″ (3 ft.) - $3,394.71 ea.
  • 48″ (4 ft.) - $4,401.52 ea.
  • 72″ (6 ft.) - $6,067.69 ea.
  • 96″ (8 ft.) - $7,769.50 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

Update
$1,216.21 for 1
$1,216.21 ea.
Expand Details

Dimensions

  • Diameter: 6"
Click for more details alloy-steel-round-bar-4330-var-1superZoom

Key Features

CUSTOM CUT FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4330-var-1superZoom

6" Alloy Steel Round Bar 8620-Hot Rolled Part # 10585

6" Alloy Steel Round Bar 8620-Hot Rolled -
Part #: 10585
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $625.50 ea.
  • 24″ (2 ft.) - $1,182.22 ea.
  • 36″ (3 ft.) - $1,745.85 ea.
  • 48″ (4 ft.) - $2,263.64 ea.
  • 72″ (6 ft.) - $3,120.54 ea.
  • 96″ (8 ft.) - $3,995.74 ea.
  • 144″ (12 ft.) - $5,498.72 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

Update
$625.50 for 1
$625.50 ea.
Expand Details

Dimensions

  • Diameter: 6"
Click for more details alloy-steel-round-bar-8620-hot-rolled-1superZoom
Material Meets These Standard(s): ASTM-A108 , ASTM-A322

Key Features

CUSTOM CUT FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-8620-hot-rolled-1superZoom

6" Alloy Steel Round Bar 4340-Normalized Hot Rolled -  Part # 27148

6" Alloy Steel Round Bar 4340-Normalized Hot Rolled-
Part #: 27148
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

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

6" Alloy Steel Round Bar 4340-Normalized Rough Turned -
Part #: 27142
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $1,035.00 ea.
  • 24″ (2 ft.) - $1,956.26 ea.
  • 36″ (3 ft.) - $2,888.89 ea.
  • 48″ (4 ft.) - $3,745.71 ea.
  • 72″ (6 ft.) - $5,163.64 ea.
  • 96″ (8 ft.) - $6,611.87 ea.
  • 144″ (12 ft.) - $9,098.90 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

Update
$1,035.00 for 1
$1,035.00 ea.
Expand Details

Dimensions

  • Diameter: 6"
Click for more details alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Key Features

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

6" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002422

6" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002422
Sold & shipped by MSP Metals
Select a Cut Size
  • 12″ (1 ft.) - $597.36 ea.
  • 24″ (2 ft.) - $1,194.73 ea.
  • 72″ (6 ft.) - $3,584.19 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

Update
$597.36 for 1
$597.36 ea.
Expand Details

Dimensions

  • Diameter: 6"
  • Ships In: 1 Business Day
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

6 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered -  Part # 29025

6 1/4" Alloy Steel Round Bar 4340-Hot Rolled, Normalized & Tempered-
Part #: 29025
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
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $1,294.59 ea.
  • 24″ (2 ft.) - $2,446.95 ea.
  • 36″ (3 ft.) - $3,613.51 ea.
  • 48″ (4 ft.) - $4,685.24 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

Update
$1,294.59 for 1
$1,294.59 ea.
Expand Details

Dimensions

  • Diameter: 6.5"
Click for more details alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Key Features

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

6 1/2" Alloy Steel Round Bar 4140-Annealed Hot Rolled -  Part # 27951

6 1/2" Alloy Steel Round Bar 4140-Annealed Hot Rolled-
Part #: 27951
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

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
Sold & shipped by MSP Metals
Select a Cut Size
  • 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

Update
$701.07 for 1
$701.07 ea.
Expand Details

Dimensions

  • Diameter: 6.5"
  • Ships In: 1 Business Day
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

7" Alloy Steel Round Bar 8620-Hot Rolled Part # 15220

7" Alloy Steel Round Bar 8620-Hot Rolled -
Part #: 15220
Select a Cut Size
  • 12″ (1 ft.) - $577.72 ea.
  • 24″ (2 ft.) - $1,091.96 ea.
  • 36″ (3 ft.) - $1,612.54 ea.
  • 48″ (4 ft.) - $2,090.81 ea.
  • 72″ (6 ft.) - $2,882.26 ea.
  • 96″ (8 ft.) - $3,690.65 ea.
  • 144″ (12 ft.) - $5,078.90 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

Update
$577.72 for 1
$577.72 ea.
Expand Details

Dimensions

  • Diameter: 7"
Click for more details alloy-steel-round-bar-8620-hot-rolled-1superZoom
Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-8620-hot-rolled-1superZoom

7mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24538

7mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24538

Pack of 4

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
$199.76
$199.76 ea.
Expand Details

Dimensions

  • Diameter: 7mm
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

7mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24539

7mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24539

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
$199.73
$199.73 ea.
Expand Details

Dimensions

  • Diameter: 7mm
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

7" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002428

7" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002428
Sold & shipped by MSP Metals
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $813.08 ea.
  • 24″ (2 ft.) - $1,626.15 ea.
  • 72″ (6 ft.) - $4,878.47 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

Update
$813.08 for 1
$813.08 ea.
Expand Details

Dimensions

  • Diameter: 7"
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

CUSTOM CUT U.S.A. MADE DFARS FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

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.

8mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24540

8mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24540

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
$147.88
$147.88 ea.
Expand Details

Dimensions

  • Diameter: 8mm
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

8mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24541

8mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24541

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
$147.89
$147.89 ea.
Expand Details

Dimensions

  • Diameter: 8mm
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

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.

8" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated Part # mp-00002446

8" Alloy Steel Round Bar 4140 Hot Rolled Heat Treated -
Part #: mp-00002446
Sold & shipped by MSP Metals
Select a Cut Size
  • 12″ (1 ft.) - $1,061.99 ea.
  • 24″ (2 ft.) - $2,123.96 ea.
  • 72″ (6 ft.) - $6,371.88 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

Update
$1,061.99 for 1
$1,061.99 ea.
Expand Details

Dimensions

  • Diameter: 8"
  • Ships In: 1 Business Day
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-B 193 B7

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

8" Alloy Steel Round Bar 4140-Annealed Hot Rolled -  Part # 28412

8" Alloy Steel Round Bar 4140-Annealed Hot Rolled-
Part #: 28412
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

8 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled Part # 27112

8 1/2" Alloy Steel Round Bar 4340-Annealed Hot Rolled -
Part #: 27112
Select a Size or Custom Cut
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
$7,502.94 for 1
$7,502.94 ea.
Expand Details

Dimensions

  • Diameter: 8.5"
Click for more details alloy-steel-round-bar-4340-normalized-rough-turned-1superZoom

Key Features

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

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.

10mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] Part # 24542

10mm Alloy Steel Round Bar 4140- TGP Metric 36" Length [+/- 2"] -
Part #: 24542

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
$201.22
$201.22 ea.
Expand Details

Dimensions

  • Diameter: 10mm
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

10mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] Part # 24543

10mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -
Part #: 24543

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
$201.18
$201.18 ea.
Expand Details

Dimensions

  • Diameter: 10mm
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A322 , ASTM-A193 , ASTM-A295 , ASTM-A434 , ASTM-A29

Key Features

FREE MTR AVAILABLE
View more product details
Click for more details alloy-steel-round-bar-4140-annealed-cold-finish-1superZoom

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.

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.

Can't find what you're looking for?

Contact us for a custom quote