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Whether you need structural steel for the job site or nickel silver for that new knife handle, Online Metals offers the broadest range of high-quality materials online. Filter and sort to populate exactly the metal you're looking for by material, alloy, temper & more. Can't find what you're looking for? Get in touch with our customer support team via chat or phone and we'll help track down that hard-to-source metal.

 

Shop by Metal: Alloy Steel, Aluminum, Beryllium Copper, Brass, Bronze, Carbon Steel, Cast Iron, Copper,  Nickel, Stainless Steel, Titanium, Tool Steel, Wrought Iron, Zinc

 

Relevant Knowledge Hub Resources: 5 Reasons to Cut-to-size | Shop by Application

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


5/16" x 1/2" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19130

5/16" x 1/2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19130

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 0.5"
See all available dimensions for this product
  • 18″ (18 in.) - $64.35 ea.
  • 36″ (3 ft.) - $107.47 ea.
  • 72″ (6 ft.) - $204.08 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

$64.35 ea.
$64.35 for 1

5/16" x 5/8" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19135

5/16" x 5/8" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19135

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 0.625"
See all available dimensions for this product
  • 18″ (18 in.) - $68.90 ea.
  • 36″ (3 ft.) - $115.03 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

$68.90 ea.
$68.90 for 1

5/16" x 3/4" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19143

5/16" x 3/4" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19143

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
See all available dimensions for this product
  • 18″ (18 in.) - $69.57 ea.
  • 36″ (3 ft.) - $116.18 ea.
  • 72″ (6 ft.) - $220.61 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

$69.57 ea.
$69.57 for 1

5/16" x 1" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19152

5/16" x 1" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19152

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 1"
See all available dimensions for this product
  • 18″ (18 in.) - $82.73 ea.
  • 36″ (3 ft.) - $138.00 ea.
  • 72″ (6 ft.) - $262.19 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

$82.73 ea.
$82.73 for 1

5/16" x 1 1/4" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19160

5/16" x 1 1/4" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19160

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 1.25"
See all available dimensions for this product
  • 18″ (18 in.) - $91.70 ea.
  • 36″ (3 ft.) - $153.10 ea.
  • 72″ (6 ft.) - $290.85 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

$91.70 ea.
$91.70 for 1

5/16" x 1 1/2" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19171

5/16" x 1 1/2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19171

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 1.5"
See all available dimensions for this product
  • 18″ (18 in.) - $102.85 ea.
  • 36″ (3 ft.) - $171.67 ea.
  • 72″ (6 ft.) - $326.13 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

$102.85 ea.
$102.85 for 1

5/16" x 1 3/4" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19180

5/16" x 1 3/4" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19180

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 1.75"
See all available dimensions for this product
  • 18″ (18 in.) - $121.20 ea.
  • 36″ (3 ft.) - $202.44 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

$121.20 ea.
$121.20 for 1

5/16" x 2" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19190

5/16" x 2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19190

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 2"
See all available dimensions for this product
  • 18″ (18 in.) - $124.98 ea.
  • 36″ (3 ft.) - $208.70 ea.
  • 72″ (6 ft.) - $396.29 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

$124.98 ea.
$124.98 for 1

5/16" x 2 1/2" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19199

5/16" x 2 1/2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19199

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 2.5"
See all available dimensions for this product
  • 18″ (18 in.) - $146.18 ea.
  • 36″ (3 ft.) - $244.03 ea.
  • 72″ (6 ft.) - $463.43 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

$146.18 ea.
$146.18 for 1

5/16" x 3" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19210

5/16" x 3" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19210

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 3"
See all available dimensions for this product
  • 18″ (18 in.) - $168.40 ea.
  • 36″ (3 ft.) - $281.16 ea.
  • 72″ (6 ft.) - $533.89 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.

QTY

$168.40 ea.
$168.40 for 1

5/16" x 3 1/2" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19219

5/16" x 3 1/2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19219

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 3.5"
See all available dimensions for this product
  • 18″ (18 in.) - $205.60 ea.
  • 36″ (3 ft.) - $343.32 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

$205.60 ea.
$205.60 for 1

5/16" x 10" Alloy Steel Rectangle Bar 4142-Prehardened - 
Part #: 19260

5/16" x 10" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19260

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom

Dimensions

  • Thickness: 0.3125"
  • Width: 10"
See all available dimensions for this product
  • 18″ (18 in.) - $540.97 ea.
  • 36″ (3 ft.) - $903.17 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.

QTY

$540.97 ea.
$540.97 for 1

5/16" Alloy Steel Round Bar 4340-Normalized Cold Finish - 
Part #: 23268

5/16" Alloy Steel Round Bar 4340-Normalized Cold Finish-
Part #: 23268

Click for more details

alloy-steel-round-bar-4340-normalized-cold-finished-turned-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

5/16" Alloy Steel Square Bar 4142-Prehardened - 
Part #: 19356

5/16" Alloy Steel Square Bar 4142-Prehardened -
Part #: 19356

Click for more details

alloy-steel-square-bar-4142-prehardened-1superZoom

Dimensions

  • Height: 0.3125"
See all available dimensions for this product
  • 18″ (18 in.) - $74.68 ea.
  • 36″ (3 ft.) - $124.66 ea.
  • 72″ (6 ft.) - $236.65 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

$74.68 ea.
$74.68 for 1

5/16" Carbon Steel Round Bar 12L14 Cold Drawn - 
Part #: 7577

5/16" Carbon Steel Round Bar 12L14 Cold Drawn -
Part #: 7577

Click for more details

carbon-round-bar-12l14-cold-drawn-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $4.96 ea.
  • 36″ (3 ft.) - $5.01 ea.
  • 48″ (4 ft.) - $5.12 ea.
  • 72″ (6 ft.) - $5.18 ea.
  • 96″ (8 ft.) - $6.07 ea.
  • 144″ (12 ft.) - $7.56 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

$4.50 ea.
$4.50 for 1

5/16" Carbon Steel Round Bar 1144-Stress Relieved Cold Finish - 
Part #: 7629

5/16" Carbon Steel Round Bar 1144-Stress Relieved Cold Finish -
Part #: 7629

Click for more details

carbon-round-bar-1144-stressproof-cold-drawn-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $7.16 ea.
  • 36″ (3 ft.) - $9.78 ea.
  • 48″ (4 ft.) - $12.19 ea.
  • 72″ (6 ft.) - $17.21 ea.
  • 96″ (8 ft.) - $21.44 ea.
  • 144″ (12 ft.) - $26.71 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.
Create Custom Cut

QTY

$4.50 ea.
$4.50 for 1
SALE! Overstock Sale!

5/16" Chrome Steel Ball 52100 Grade 25 Pack of 100 - 
Part #: 20444

5/16" Chrome Steel Ball 52100 Grade 25 Pack of 100 -
Part #: 20444

Click for more details

chrome-steel-balls-52100-grade-25-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product

Bag of 100

QTY

$2.39 ea.
$2.39

5/16" Aluminum Round Bar 2011-T3-Cold Finish - 
Part #: 15223

5/16" Aluminum Round Bar 2011-T3-Cold Finish -
Part #: 15223

Click for more details

aluminum-round-bar-2011-t3-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $6.01 ea.
  • 36″ (3 ft.) - $8.18 ea.
  • 48″ (4 ft.) - $10.18 ea.
  • 72″ (6 ft.) - $14.40 ea.
  • 96″ (8 ft.) - $17.92 ea.
  • 144″ (12 ft.) - $22.32 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.
Create Custom Cut

QTY

$4.50 ea.
$4.50 for 1

5/16" inch Aluminum Round Bar 2024-T4-Cold - 
Part #: 17967

5/16" inch Aluminum Round Bar 2024-T4-Cold -
Part #: 17967

Click for more details

aluminum-round-bar-2024-t4-cold-finish-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.98 ea.
  • 24″ (2 ft.) - $9.69 ea.
  • 36″ (3 ft.) - $13.22 ea.
  • 48″ (4 ft.) - $16.48 ea.
  • 72″ (6 ft.) - $23.28 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

$4.98 ea.
$4.98 for 1

5/16" Aluminum Round Bar 6061-T6-Cold - 
Part #: 18008

5/16" Aluminum Round Bar 6061-T6-Cold -
Part #: 18008

Click for more details

aluminum-round-bar-6061-t6-cold-finish-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $5.72 ea.
  • 36″ (3 ft.) - $7.86 ea.
  • 48″ (4 ft.) - $9.80 ea.
  • 72″ (6 ft.) - $13.84 ea.
  • 96″ (8 ft.) - $17.29 ea.
  • 144″ (12 ft.) - $21.60 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

$4.50 ea.
$4.50 for 1

5/16" Aluminum Round Bar 6061-T6511-Extruded - 
Part #: 1081

5/16" Aluminum Round Bar 6061-T6511-Extruded -
Part #: 1081

Click for more details

aluminum-round-bar-6061-t6511-extruded-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $4.96 ea.
  • 36″ (3 ft.) - $5.60 ea.
  • 48″ (4 ft.) - $7.02 ea.
  • 72″ (6 ft.) - $9.90 ea.
  • 96″ (8 ft.) - $12.36 ea.
  • 144″ (12 ft.) - $15.47 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.
Create Custom Cut

QTY

$4.50 ea.
$4.50 for 1

0.3125"-18 Copper Threaded Coarse Rod 110 36" Length Pack of 4 - 
Part #: 22861

0.3125"-18 Copper Threaded Coarse Rod 110 36" Length Pack of 4 -
Part #: 22861

Click for more details

copper-threaded-rod-110-1superZoom

Dimensions

  • Diameter: 0.3125"
  • Thread: 18 Tpi
See all available dimensions for this product

Pack of 4

QTY

$238.35 ea.
$238.35

0.3125"-18 Copper Threaded Coarse Rod 110 72" Length Pack of 2 - 
Part #: 22862

0.3125"-18 Copper Threaded Coarse Rod 110 72" Length Pack of 2 -
Part #: 22862

Click for more details

copper-threaded-rod-110-1superZoom

Dimensions

  • Diameter: 0.3125"
  • Thread: 18 Tpi
See all available dimensions for this product

Pack of 2

QTY

$238.35 ea.
$238.35

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish - 
Part #: 7352

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7352

Click for more details

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

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
See all available dimensions for this product
  • 12″ (1 ft.) - $6.61 ea.
  • 24″ (2 ft.) - $12.85 ea.
  • 36″ (3 ft.) - $17.57 ea.
  • 48″ (4 ft.) - $21.89 ea.
  • 72″ (6 ft.) - $30.90 ea.
  • 96″ (8 ft.) - $38.51 ea.
  • 144″ (12 ft.) - $47.92 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

$6.61 ea.
$6.61 for 1

5/16" Aluminum Plate 2024-T351 - 
Part #: 7938

5/16" Aluminum Plate 2024-T351 -
Part #: 7938

Click for more details

aluminum-sheet-2024-t3-bare-1superZoom

Dimensions

  • Thickness: 0.3125"
See all available dimensions for this product
  • 12″ X 12″ (1 X 1 ft.) - $128.21 ea.
  • 12″ X 24″ (1 X 2 ft.) - $248.74 ea.
  • 12″ X 36″ (1 X 3 ft.) - $338.47 ea.
  • 12″ X 48″ (1 X 4 ft.) - $422.00 ea.
  • 24″ X 24″ (2 X 2 ft.) - $422.00 ea.
  • 24″ X 36″ (2 X 3 ft.) - $607.60 ea.
  • 24″ X 48″ (2 X 4 ft.) - $794.73 ea.
  • 36″ X 36″ (3 X 3 ft.) - $855.97 ea.
  • 36″ X 48″ (3 X 4 ft.) - $1,113.54 ea.
  • 48″ X 144″ (4 X 12 ft.) - $3,696.41 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

$128.21 ea.
$128.21 for 1

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