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Ground Flat Stock

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Ground Flat Stock

Ground flat stock at OnlineMetals is a precision-ground, rectangular bar made from high-quality tool, alloy, stainless, or carbon steels, engineered to tight tolerances for flatness, dimension, and surface finish. It’s ideal for applications in tool & die, machining, gauges, or precision parts where consistent thickness and smooth surfaces are essential. OnlineMetals offers a range of grades—such as A2, D2, O1, 4140, and various stainless alloys—cut to size to avoid excess material waste. The stock is surface ground on all four faces, eliminating defects and decarburization, and arrives ready for further machining or finishing. With quick processing and inventory across multiple grades and sizes, it provides an efficient, reliable source for professionals and hobbyists needing precision material.

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1/2" x 2 1/2" Tool Steel Rectangle Bar S7 Ground Oversize Part # 11494

1/2" x 2 1/2" Tool Steel Rectangle Bar S7 Ground Oversize -
Part #: 11494
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
$278.90 for 1
$278.90 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 2.5"
Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
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tool-steel-rectangle-bar-s7-oversize-1superZoom-desk11494

1/2" x 3" Tool Steel Rectangle Bar S7 Ground Oversize Part # 11495

1/2" x 3" Tool Steel Rectangle Bar S7 Ground Oversize -
Part #: 11495
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
$321.58 for 1
$321.58 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-desk11495

1/2" x 4" Tool Steel Rectangle Bar S7 Ground Oversize Part # 11496

1/2" x 4" Tool Steel Rectangle Bar S7 Ground Oversize -
Part #: 11496
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
$406.80 for 1
$406.80 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-desk11496

1/2" x 3/4" Stainless Rectangle Bar 410 Precision Ground Part # 18646

1/2" x 3/4" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18646
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
$237.11 for 1
$237.11 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 0.75"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18646

1/2" x 1" Stainless Rectangle Bar 410 Precision Ground Part # 18654

1/2" x 1" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18654
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
$257.74 for 1
$257.74 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 1"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18654

1/2" x 1 1/4" Stainless Rectangle Bar 410 Precision Ground Part # 18664

1/2" x 1 1/4" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18664
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
$278.00 for 1
$278.00 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 1.25"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18664

1/2" x 1 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18675

1/2" x 1 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18675
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
$300.35 for 1
$300.35 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 1.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18675

1/2" x 2" Stainless Rectangle Bar 410 Precision Ground Part # 18685

1/2" x 2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18685
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
$345.96 for 1
$345.96 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 2"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18685

1/2" x 2 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18700

1/2" x 2 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18700
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
$435.76 for 1
$435.76 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 2.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18700

1/2" x 3" Stainless Rectangle Bar 410 Precision Ground Part # 18711

1/2" x 3" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18711
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
$455.48 for 1
$455.48 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 3"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18711

1/2" x 3 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18726

1/2" x 3 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18726
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
$551.69 for 1
$551.69 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 3.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18726

1/2" x 4" Stainless Rectangle Bar 410 Precision Ground Part # 18736

1/2" x 4" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18736
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
$568.23 for 1
$568.23 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 4"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18736

1/2" x 5" Stainless Rectangle Bar 410 Precision Ground Part # 18749

1/2" x 5" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18749
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
$768.83 for 1
$768.83 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18749

1/2" x 6" Stainless Rectangle Bar 410 Precision Ground Part # 18761

1/2" x 6" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18761
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
$812.22 for 1
$812.22 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 6"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18761

1/2" x 7" Stainless Rectangle Bar 410 Precision Ground Part # 18769

1/2" x 7" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18769
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
$990.68 for 1
$990.68 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 7"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18769

1/2" x 8" Stainless Rectangle Bar 410 Precision Ground Part # 18781

1/2" x 8" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18781
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
$1,046.81 for 1
$1,046.81 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 8"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18781

1/2" x 9" Stainless Rectangle Bar 410 Precision Ground Part # 18789

1/2" x 9" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18789
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
$1,458.31 for 1
$1,458.31 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 9"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18789

1/2" x 10" Stainless Rectangle Bar 410 Precision Ground Part # 18801

1/2" x 10" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18801
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
$1,361.88 for 1
$1,361.88 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 10"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18801

1/2" x 12" Stainless Rectangle Bar 410 Precision Ground Part # 18813

1/2" x 12" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18813
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
$1,524.66 for 1
$1,524.66 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 12"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18813

1/2" x 1" Stainless Rectangle Bar 420 Oversize Ground Stock Part # 18821

1/2" x 1" Stainless Rectangle Bar 420 Oversize Ground Stock -
Part #: 18821
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
$446.00 for 1
$446.00 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 1"
Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-desk18821

1/2" x 2" Stainless Rectangle Bar 420 Oversize Ground Stock Part # 18825

1/2" x 2" Stainless Rectangle Bar 420 Oversize Ground Stock -
Part #: 18825
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
$673.75 for 1
$673.75 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 2"
Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-desk18825

1/2" x 3" Stainless Rectangle Bar 420 Oversize Ground Stock Part # 18831

1/2" x 3" Stainless Rectangle Bar 420 Oversize Ground Stock -
Part #: 18831
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
$906.08 for 1
$906.08 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 3"
Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-desk18831

1/2" x 4" Stainless Rectangle Bar 420 Oversize Ground Stock Part # 18837

1/2" x 4" Stainless Rectangle Bar 420 Oversize Ground Stock -
Part #: 18837
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
$1,133.88 for 1
$1,133.88 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 4"
Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-desk18837

1/2" x 5" Stainless Rectangle Bar 420 Oversize Ground Stock Part # 18843

1/2" x 5" Stainless Rectangle Bar 420 Oversize Ground Stock -
Part #: 18843
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
$1,361.71 for 1
$1,361.71 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 5"
Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-desk18843

1/2" x 6" Stainless Rectangle Bar 420 Oversize Ground Stock Part # 18848

1/2" x 6" Stainless Rectangle Bar 420 Oversize Ground Stock -
Part #: 18848
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
$1,589.44 for 1
$1,589.44 ea.

Dimensions

  • Thickness: 0.5"
  • Width: 6"
Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-420-oversize-1superZoom-desk18848

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