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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" x 9" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 19012

1" x 9" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 19012
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
$2,373.61 for 1
$2,373.61 ea.

Dimensions

  • Thickness: 1"
  • Width: 9"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
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stainless-rectangle-bar-410-1superZoom-desk19012

1" x 10" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 19024

1" x 10" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 19024
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
$2,437.70 for 1
$2,437.70 ea.

Dimensions

  • Thickness: 1"
  • Width: 10"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
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stainless-rectangle-bar-410-1superZoom-desk19024

1" x 12" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 19036

1" x 12" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 19036
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
$2,888.70 for 1
$2,888.70 ea.

Dimensions

  • Thickness: 1"
  • Width: 12"
Click for more details
stainless-rectangle-bar-410-1superZoom-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-410-1superZoom-desk19036

1" Stainless Square Bar 410 Precision Ground Part # 19327

1" Stainless Square Bar 410 Precision Ground -
Part #: 19327
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
$470.03 for 1
$470.03 ea.

Dimensions

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

Key Features

MTR FREE MTR Available
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stainless-square-bar-410-1superZoom-desk19327

1" Stainless Square Bar 420 Oversize Ground Stock Part # 19336

1" Stainless Square Bar 420 Oversize Ground Stock -
Part #: 19336
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
$739.58 for 1
$739.58 ea.

Dimensions

  • Height: 1"
Click for more details
stainless-square-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-square-bar-420-oversize-1superZoom-desk19336

1" Stainless Square Bar 440C Oversize Ground Stock Part # 19339

1" Stainless Square Bar 440C Oversize Ground Stock -
Part #: 19339
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
$539.05 for 1
$539.05 ea.

Dimensions

  • Height: 1"
Click for more details
stainless-square-bar-440c-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-square-bar-440c-oversize-1superZoom-desk19339

1" x 1 1/2" Tool Steel Rectangle Bar A2 Precision Ground Part # 12354

1" x 1 1/2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 12354
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
$263.95 for 1
$263.95 ea.

Dimensions

  • Thickness: 1"
  • Width: 1.5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk12354

1" x 2 1/2" Tool Steel Rectangle Bar A2 Precision Ground Part # 12357

1" x 2 1/2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 12357
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
$373.03 for 1
$373.03 ea.

Dimensions

  • Thickness: 1"
  • Width: 2.5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk12357

1" x 3" Tool Steel Rectangle Bar A2 Precision Ground Part # 12358

1" x 3" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 12358
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
$427.40 for 1
$427.40 ea.

Dimensions

  • Thickness: 1"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk12358

1" x 4" Tool Steel Rectangle Bar A2 Precision Ground Part # 12359

1" x 4" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 12359
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
$536.45 for 1
$536.45 ea.

Dimensions

  • Thickness: 1"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk12359

1" x 5" Tool Steel Rectangle Bar A2 Precision Ground Part # 12360

1" x 5" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 12360
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
$647.63 for 1
$647.63 ea.

Dimensions

  • Thickness: 1"
  • Width: 5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk12360

1" x 6" Tool Steel Rectangle Bar A2 Precision Ground Part # 12361

1" x 6" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 12361
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
$756.53 for 1
$756.53 ea.

Dimensions

  • Thickness: 1"
  • Width: 6"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk12361

1" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 12362

1" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12362
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
$205.55 for 1
$205.55 ea.

Dimensions

  • Thickness: 1"
  • Width: 1.25"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12362

1" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12363

1" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12363
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
$228.25 for 1
$228.25 ea.

Dimensions

  • Thickness: 1"
  • Width: 1.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12363

1" x 1 3/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 12364

1" x 1 3/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12364
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
$250.78 for 1
$250.78 ea.

Dimensions

  • Thickness: 1"
  • Width: 1.75"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12364

1" x 2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12365

1" x 2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12365
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
$273.45 for 1
$273.45 ea.

Dimensions

  • Thickness: 1"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12365

1" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12366

1" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12366
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
$318.78 for 1
$318.78 ea.

Dimensions

  • Thickness: 1"
  • Width: 2.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12366

1" x 3 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12368

1" x 3 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12368
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
$409.25 for 1
$409.25 ea.

Dimensions

  • Thickness: 1"
  • Width: 3.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12368

1" x 4" Tool Steel Rectangle Bar O1 Precision Ground Part # 12369

1" x 4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12369
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
$454.40 for 1
$454.40 ea.

Dimensions

  • Thickness: 1"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12369

1" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 12367

1" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12367
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
$363.90 for 1
$363.90 ea.

Dimensions

  • Thickness: 1"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12367

1" x 5" Tool Steel Rectangle Bar O1 Precision Ground Part # 12370

1" x 5" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12370
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
$547.10 for 1
$547.10 ea.

Dimensions

  • Thickness: 1"
  • Width: 5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12370

1" x 8" Tool Steel Rectangle Bar O1 Precision Ground Part # 12372

1" x 8" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12372
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
$929.85 for 1
$929.85 ea.

Dimensions

  • Thickness: 1"
  • Width: 8"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12372

1" x 10" Tool Steel Rectangle Bar O1 Precision Ground Part # 12373

1" x 10" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12373
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
$1,122.28 for 1
$1,122.28 ea.

Dimensions

  • Thickness: 1"
  • Width: 10"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12373

1" x 6" Tool Steel Rectangle Bar O1 Precision Ground Part # 12371

1" x 6" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12371
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
$637.67 for 1
$637.67 ea.

Dimensions

  • Thickness: 1"
  • Width: 6"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12371

1" x 12" Tool Steel Rectangle Bar O1 Precision Ground Part # 12374

1" x 12" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12374
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
$1,314.55 for 1
$1,314.55 ea.

Dimensions

  • Thickness: 1"
  • Width: 12"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-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-o1-1superZoom-desk12374

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