Shop all Products
Shop Aerospace Materials

Open for Orders 24/7!

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

Rectangle Flat Bar

-4550 Products

Known for its utility, rectangle bar stocks are used in a wide range of applications from naval brass to tooling. We carry Rectangle Bar stock in Alloy Steel, Aluminum, Brass, Bronze, Carbon Fiber, Carbon Steel, Cast Iron, Copper, Stainless Steel, and Tool Steel. Most metal flat bar stock or metal bar stock is available in full size and custom cut solid rectangle bar sizes.

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

Surface

Grade

Color

Domestic

Temper

DFARS

seller

Shape

Can't find what you need?

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


1.25" X 3" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002619

1.25" X 3" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002619

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $92.50 ea.
  • 24″ (2 ft.) - $185.00 ea.
  • 36″ (3 ft.) - $277.50 ea.
  • 48″ (4 ft.) - $370.01 ea.
  • 60″ (5 ft.) - $462.51 ea.
  • 72″ (6 ft.) - $555.01 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

$92.50 ea.
$92.50 for 1

1.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002623

1.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002623

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 8"
See all available dimensions for this product
  • 12″ (1 ft.) - $246.21 ea.
  • 24″ (2 ft.) - $492.41 ea.
  • 36″ (3 ft.) - $738.62 ea.
  • 48″ (4 ft.) - $984.83 ea.
  • 60″ (5 ft.) - $1,231.04 ea.
  • 72″ (6 ft.) - $1,477.24 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.
Create Custom Cut

QTY

$246.21 ea.
$246.21 for 1

1.25" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated - 
Part #: mp-00002670

1.25" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated -
Part #: mp-00002670

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 12"
See all available dimensions for this product
  • 12″ (1 ft.) - $369.31 ea.
  • 24″ (2 ft.) - $738.62 ea.
  • 36″ (3 ft.) - $1,107.93 ea.
  • 48″ (4 ft.) - $1,477.24 ea.
  • 60″ (5 ft.) - $1,846.55 ea.
  • 72″ (6 ft.) - $2,215.86 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

$369.31 ea.
$369.31 for 1

1 1/4" x 3" Aluminum Rectangle Bar 7075-T7351-Cold Finish - 
Part #: 27549

1 1/4" x 3" Aluminum Rectangle Bar 7075-T7351-Cold Finish -
Part #: 27549

Click for more details

aluminum-rectangle-bar-7075-t651-cold-finish-bare-1superZoom

Dimensions

  • Thickness: 1.25"
  • Width: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $180.40 ea.
  • 24″ (2 ft.) - $351.01 ea.
  • 36″ (3 ft.) - $479.09 ea.
  • 48″ (4 ft.) - $597.37 ea.
  • 72″ (6 ft.) - $843.75 ea.
  • 96″ (8 ft.) - $1,050.87 ea.
  • 144″ (12 ft.) - $1,308.11 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

$180.40 ea.
$180.40 for 1

1 1/4" x 2 1/2" Aluminum Rectangle Bar 7075-T7351-Cold Finish - 
Part #: 27548

1 1/4" x 2 1/2" Aluminum Rectangle Bar 7075-T7351-Cold Finish -
Part #: 27548

Click for more details

aluminum-rectangle-bar-7075-t651-cold-finish-bare-1superZoom

Dimensions

  • Thickness: 1.25"
  • Width: 2.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $123.33 ea.
  • 24″ (2 ft.) - $239.92 ea.
  • 36″ (3 ft.) - $327.49 ea.
  • 48″ (4 ft.) - $408.31 ea.
  • 72″ (6 ft.) - $576.71 ea.
  • 96″ (8 ft.) - $718.30 ea.
  • 144″ (12 ft.) - $894.14 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

$123.33 ea.
$123.33 for 1

1 1/4" x 1 1/2" Aluminum Rectangle Bar 7075-T7351-Cold Finish - 
Part #: 27547

1 1/4" x 1 1/2" Aluminum Rectangle Bar 7075-T7351-Cold Finish -
Part #: 27547

Click for more details

aluminum-rectangle-bar-7075-t651-cold-finish-bare-1superZoom

Dimensions

  • Thickness: 1.25"
  • Width: 1.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $98.60 ea.
  • 24″ (2 ft.) - $191.85 ea.
  • 36″ (3 ft.) - $261.85 ea.
  • 48″ (4 ft.) - $326.50 ea.
  • 72″ (6 ft.) - $461.15 ea.
  • 96″ (8 ft.) - $574.38 ea.
  • 144″ (12 ft.) - $714.97 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

$98.60 ea.
$98.60 for 1

1 1/4" x 6" Aluminum Rectangle Bar 6061-T6511 144" Length - 10pc. Min - 
Part #: 28648

1 1/4" x 6" Aluminum Rectangle Bar 6061-T6511 144" Length - 10pc. Min-
Part #: 28648

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 6"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 5" Aluminum Rectangle Bar 6061-T6511 144" Length - 12pc. Min - 
Part #: 28647

1 1/4" x 5" Aluminum Rectangle Bar 6061-T6511 144" Length - 12pc. Min-
Part #: 28647

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 2 1/2" Aluminum Rectangle Bar 6061-T6511 144" Length - 24pc. Min - 
Part #: 28644

1 1/4" x 2 1/2" Aluminum Rectangle Bar 6061-T6511 144" Length - 24pc. Min-
Part #: 28644

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 2.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 1 3/4" Aluminum Rectangle Bar 6061-T6511 144" Length - 32pc. Min - 
Part #: 28642

1 1/4" x 1 3/4" Aluminum Rectangle Bar 6061-T6511 144" Length - 32pc. Min-
Part #: 28642

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 1.75"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 1 1/2" Aluminum Rectangle Bar 6061-T6511 144" Length - 40pc. Min - 
Part #: 28641

1 1/4" x 1 1/2" Aluminum Rectangle Bar 6061-T6511 144" Length - 40pc. Min-
Part #: 28641

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 1.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 2" Aluminum Rectangle Bar 6061-T6511 144" Length - 28pc. Min - 
Part #: 28643

1 1/4" x 2" Aluminum Rectangle Bar 6061-T6511 144" Length - 28pc. Min-
Part #: 28643

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 2"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 4" Aluminum Rectangle Bar 6061-T6511 144" Length - 16pc. Min - 
Part #: 28646

1 1/4" x 4" Aluminum Rectangle Bar 6061-T6511 144" Length - 16pc. Min-
Part #: 28646

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 4"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 3" Aluminum Rectangle Bar 6061-T6511 144" Length - 18pc. Min - 
Part #: 28645

1 1/4" x 3" Aluminum Rectangle Bar 6061-T6511 144" Length - 18pc. Min-
Part #: 28645

Click for more details

Dimensions

  • Thickness: 1.25"
  • Width: 3"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 1 1/2" Alloy Steel Rectangle Bar 4140 - 
Part #: 28769

1 1/4" x 1 1/2" Alloy Steel Rectangle Bar 4140-
Part #: 28769

Click for more details

mild-steel-key-stock-rectangle-1superZoom

Dimensions

  • Thickness: 1.25"
  • Width: 1.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1.25" x 6" Bronze Rectangle Bar 907 Continuous Cast - 
Part #: mp-00034470

1.25" x 6" Bronze Rectangle Bar 907 Continuous Cast -
Part #: mp-00034470

Click for more details

Sold & shipped by Spectrum Machine Inc.

Dimensions

  • Thickness: 1.25"
  • Width: 6"
  • Ships In: 1-2 Business Days
See all available dimensions for this product
  • 12″ (1 ft.) - $486.75 ea.
  • 24″ (2 ft.) - $958.75 ea.
  • 72″ (6 ft.) - $2,891.00 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

$486.75 ea.
$486.75 for 1

1.25" x 8" Bronze Rectangle Bar 907 Continuous Cast - 
Part #: mp-00034524

1.25" x 8" Bronze Rectangle Bar 907 Continuous Cast -
Part #: mp-00034524

Click for more details

Sold & shipped by Spectrum Machine Inc.

Dimensions

  • Thickness: 1.25"
  • Width: 8"
  • Ships In: 1-2 Business Days
See all available dimensions for this product
  • 12″ (1 ft.) - $663.75 ea.
  • 24″ (2 ft.) - $1,342.25 ea.
  • 72″ (6 ft.) - $4,012.00 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

$663.75 ea.
$663.75 for 1

1.25" x 4" Bronze Rectangle Bar 907 Continuous Cast - 
Part #: mp-00034534

1.25" x 4" Bronze Rectangle Bar 907 Continuous Cast -
Part #: mp-00034534

Click for more details

Sold & shipped by Spectrum Machine Inc.

Dimensions

  • Thickness: 1.25"
  • Width: 4"
  • Ships In: 1-2 Business Days
See all available dimensions for this product
  • 12″ (1 ft.) - $324.50 ea.
  • 24″ (2 ft.) - $634.25 ea.
  • 72″ (6 ft.) - $1,902.75 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

$324.50 ea.
$324.50 for 1

1 1/4" x 2 1/2" Stainless Rectangle Bar 316/316L - 
Part #: 28787

1 1/4" x 2 1/2" Stainless Rectangle Bar 316/316L-
Part #: 28787

Click for more details

stainless-rectangle-bar-316-1superZoom

Dimensions

  • Thickness: 1.25"
  • Width: 2.5"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/4" x 2" Stainless Rectangle Bar 316/316L - 
Part #: 27789

1 1/4" x 2" Stainless Rectangle Bar 316/316L -
Part #: 27789

Click for more details

stainless-rectangle-bar-316-1superZoom

Dimensions

  • Thickness: 1.25"
  • Width: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $97.27 ea.
  • 24″ (2 ft.) - $183.86 ea.
  • 36″ (3 ft.) - $271.52 ea.
  • 48″ (4 ft.) - $352.05 ea.
  • 72″ (6 ft.) - $485.31 ea.
  • 144″ (12 ft.) - $855.17 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

$97.27 ea.
$97.27 for 1

1.25" x 2" Carbon Steel Rectangle Bar A36 Hot Rolled - 
Part #: mp-00038668

1.25" x 2" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: mp-00038668

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $16.36 ea.
  • 24″ (2 ft.) - $32.73 ea.
  • 36″ (3 ft.) - $49.09 ea.
  • 48″ (4 ft.) - $65.45 ea.
  • 60″ (5 ft.) - $81.81 ea.
  • 72″ (6 ft.) - $98.18 ea.
  • 96″ (8 ft.) - $130.90 ea.
  • 144″ (12 ft.) - $196.35 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

$16.36 ea.
$16.36 for 1

1.25" x 6" Carbon Steel Rectangle Bar A36 Hot Rolled - 
Part #: mp-00038672

1.25" x 6" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: mp-00038672

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 6"
See all available dimensions for this product
  • 12″ (1 ft.) - $79.69 ea.
  • 24″ (2 ft.) - $159.38 ea.
  • 36″ (3 ft.) - $239.06 ea.
  • 48″ (4 ft.) - $318.75 ea.
  • 60″ (5 ft.) - $398.44 ea.
  • 72″ (6 ft.) - $478.13 ea.
  • 96″ (8 ft.) - $637.50 ea.
  • 144″ (12 ft.) - $956.25 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.
Create Custom Cut

QTY

$79.69 ea.
$79.69 for 1

1.25" x 3" Carbon Steel Rectangle Bar A36 Hot Rolled - 
Part #: mp-00038671

1.25" x 3" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: mp-00038671

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 3"
See all available dimensions for this product
  • 12″ (1 ft.) - $25.50 ea.
  • 24″ (2 ft.) - $51.00 ea.
  • 36″ (3 ft.) - $76.50 ea.
  • 48″ (4 ft.) - $102.00 ea.
  • 60″ (5 ft.) - $127.50 ea.
  • 72″ (6 ft.) - $153.00 ea.
  • 96″ (8 ft.) - $204.00 ea.
  • 144″ (12 ft.) - $306.00 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

$25.50 ea.
$25.50 for 1

1.25" x 1.5" Carbon Steel Rectangle Bar A36 Hot Rolled - 
Part #: mp-00038678

1.25" x 1.5" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: mp-00038678

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 1.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $63.47 ea.
  • 24″ (2 ft.) - $126.95 ea.
  • 36″ (3 ft.) - $190.42 ea.
  • 48″ (4 ft.) - $253.89 ea.
  • 60″ (5 ft.) - $317.36 ea.
  • 72″ (6 ft.) - $380.84 ea.
  • 96″ (8 ft.) - $507.78 ea.
  • 144″ (12 ft.) - $761.67 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

$63.47 ea.
$63.47 for 1

1.25" x 2.5" Carbon Steel Rectangle Bar A36 Hot Rolled - 
Part #: mp-00038685

1.25" x 2.5" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: mp-00038685

Click for more details

Sold & shipped by MSP Metals

Dimensions

  • Thickness: 1.25"
  • Width: 2.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $22.06 ea.
  • 24″ (2 ft.) - $44.11 ea.
  • 36″ (3 ft.) - $66.17 ea.
  • 48″ (4 ft.) - $88.23 ea.
  • 60″ (5 ft.) - $110.29 ea.
  • 72″ (6 ft.) - $132.34 ea.
  • 96″ (8 ft.) - $176.46 ea.
  • 144″ (12 ft.) - $264.69 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

$22.06 ea.
$22.06 for 1

Can't find what you're looking for?

Contact us for a custom quote