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303

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303 Product Guide Product   | 303 Stainless Steel Tolerance Guide product

The main value of 303 stainless steel is its ease of machining, grinding, and polishing due to the presence of sulfur in the alloy. However, this slightly does lower the corrosion resistance and toughness of the metal. But despite this, it remains a tough, austenitic stainless steel alloy. It is typically used in aircraft applications, machine parts, pump and valve parts, architectural applications, nuts, and bolts.

We carry 303 in square bar, cold drawn annealed square bar, rectangle bar, cold drawn annealed rectangle bar, HRAP rectangle bar, round bar, hex bar, sheet/plate, HRAP sheet/plate, and sample packs.

 

Relevant Knowledge Hub Resources: 5 Reasons to Cut to Size | The Weldability of Stainless Steel

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1" Stainless Square Bar 303-Annealed Cold Drawn - 
Part #: 19644

1" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 19644

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Dimensions

  • Height: 1"
See all available dimensions for this product
  • 12″ (1 ft.) - $42.13 ea.
  • 24″ (2 ft.) - $81.98 ea.
  • 36″ (3 ft.) - $111.89 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $139.52 ea.
  • 72″ (6 ft.) - $197.06 ea.
  • 96″ (8 ft.) - $245.43 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.
Create Custom Cut

QTY

$42.13 ea.
$42.13 for 1

3/4" Stainless Square Bar 303-Annealed Cold Drawn - 
Part #: 19641

3/4" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 19641

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Dimensions

  • Height: 0.75"
See all available dimensions for this product
  • 12″ (1 ft.) - $24.27 ea.
  • 24″ (2 ft.) - $47.18 ea.
  • 36″ (3 ft.) - $64.42 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $80.33 ea.
  • 72″ (6 ft.) - $113.44 ea.
  • 96″ (8 ft.) - $141.28 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

$24.27 ea.
$24.27 for 1
quantity discountBuy More & Save up to 20% !
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Price ea.
Savings
100+
$19.37
20%
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3/16" Stainless Hex Bar 303-Annealed Cold Finish - 
Part #: 19708

3/16" Stainless Hex Bar 303-Annealed Cold Finish -
Part #: 19708

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Dimensions

  • Across Flats: 0.1875"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $4.73 ea.
  • 36″ (3 ft.) - $4.78 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $4.89 ea.
  • 72″ (6 ft.) - $6.06 ea.
  • 96″ (8 ft.) - $7.57 ea.
  • 144″ (12 ft.) - $9.42 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! Save BIG on end of Year Deals!

2 1/4" Stainless Hex Bar 303-Annealed Cold Finish - 
Part #: 19734

2 1/4" Stainless Hex Bar 303-Annealed Cold Finish -
Part #: 19734

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Dimensions

  • Across Flats: 2.25"
See all available dimensions for this product
  • 12″ (1 ft.) - $195.66 ea.
  • 24″ (2 ft.) - $369.82 ea.
  • 36″ (3 ft.) - $546.13 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $708.10 ea.
  • 72″ (6 ft.) - $976.12 ea.
  • 96″ (8 ft.) - $1,249.90 ea.
  • 144″ (12 ft.) - $1,720.06 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

$195.66 ea.
$195.66 for 1

7/16" Stainless Hex Bar 303-Annealed Cold Finish - 
Part #: 19792

7/16" Stainless Hex Bar 303-Annealed Cold Finish -
Part #: 19792

Click for more details

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Dimensions

  • Across Flats: 0.4375"
See all available dimensions for this product
  • 12″ (1 ft.) - $6.65 ea.
  • 24″ (2 ft.) - $12.90 ea.
  • 36″ (3 ft.) - $17.62 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $21.94 ea.
  • 72″ (6 ft.) - $30.99 ea.
  • 96″ (8 ft.) - $38.59 ea.
  • 144″ (12 ft.) - $48.07 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

$6.65 ea.
$6.65 for 1

5/16" Stainless Round Bar 303-Annealed Cold Finish - 
Part #: 20107

5/16" Stainless Round Bar 303-Annealed Cold Finish -
Part #: 20107

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 0.3125"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $5.29 ea.
  • 36″ (3 ft.) - $7.22 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $8.98 ea.
  • 72″ (6 ft.) - $12.69 ea.
  • 96″ (8 ft.) - $15.82 ea.
  • 144″ (12 ft.) - $19.68 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

1 1/2" Stainless Square Bar 303-Annealed Cold Drawn - 
Part #: 20361

1 1/2" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 20361

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stainless-square-bar-303-1superZoom

Dimensions

  • Height: 1.5"
See all available dimensions for this product
  • 12″ (1 ft.) - $91.26 ea.
  • 24″ (2 ft.) - $177.55 ea.
  • 36″ (3 ft.) - $242.34 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $302.17 ea.
  • 72″ (6 ft.) - $426.78 ea.
  • 96″ (8 ft.) - $531.59 ea.
  • 144″ (12 ft.) - $661.71 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

$91.26 ea.
$91.26 for 1

7/16" Stainless Round Bar 303-Annealed Cold Finish - 
Part #: 20827

7/16" Stainless Round Bar 303-Annealed Cold Finish -
Part #: 20827

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 0.4375"
See all available dimensions for this product
  • 12″ (1 ft.) - $5.16 ea.
  • 24″ (2 ft.) - $10.08 ea.
  • 36″ (3 ft.) - $13.74 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $17.13 ea.
  • 72″ (6 ft.) - $24.20 ea.
  • 96″ (8 ft.) - $30.13 ea.
  • 144″ (12 ft.) - $37.50 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.
Create Custom Cut

QTY

$5.16 ea.
$5.16 for 1
quantity discountBuy More & Save up to 6% !
Qty
Price ea.
Savings
10+
$4.85
6%
More
Less

5/322" Stainless Round Bar 303-Annealed Cold Finish - 
Part #: 20823

5/322" Stainless Round Bar 303-Annealed Cold Finish -
Part #: 20823

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 0.1562"
See all available dimensions for this product
  • 12″ (1 ft.) - $4.50 ea.
  • 24″ (2 ft.) - $4.73 ea.
  • 36″ (3 ft.) - $4.78 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $4.89 ea.
  • 72″ (6 ft.) - $4.94 ea.
  • 96″ (8 ft.) - $5.44 ea.
  • 144″ (12 ft.) - $6.78 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

3/16" x 2" Stainless Rectangle Bar 303-Annealed Cold Drawn - 
Part #: 21508

3/16" x 2" Stainless Rectangle Bar 303-Annealed Cold Drawn -
Part #: 21508

Click for more details

stainless-rectangle-bar-303-annealed-cold-drawn-1superZoom

Dimensions

  • Thickness: 0.1875"
  • Width: 2"
See all available dimensions for this product
  • 12″ (1 ft.) - $24.72 ea.
  • 24″ (2 ft.) - $48.09 ea.
  • 36″ (3 ft.) - $65.63 ea.

    Buy 4 at the 12 ft price!

  • 48″ (4 ft.) - $81.84 ea.
  • 72″ (6 ft.) - $115.60 ea.
  • 96″ (8 ft.) - $143.99 ea.
  • 144″ (12 ft.) - $179.23 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

$24.72 ea.
$24.72 for 1

10mm Stainless Round Bar 303 Metric 72" Length [+/- 2"] - 
Part #: 22066

10mm Stainless Round Bar 303 Metric 72" Length [+/- 2"]-
Part #: 22066

Click for more details

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Dimensions

  • Diameter: 10mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

10mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22067

10mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22067

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 10mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

12mm Stainless Round Bar 303 Metric 72" Length [+/- 2"] - 
Part #: 22068

12mm Stainless Round Bar 303 Metric 72" Length [+/- 2"]-
Part #: 22068

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 12mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

12mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22069

12mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22069

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 12mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

14mm Stainless Round Bar 303 Metric 72" Length [+/- 2"] - 
Part #: 22071

14mm Stainless Round Bar 303 Metric 72" Length [+/- 2"]-
Part #: 22071

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 14mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

14mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22072

14mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22072

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 14mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

15mm Stainless Round Bar 303 Metric 72" Length [+/- 2"] - 
Part #: 22073

15mm Stainless Round Bar 303 Metric 72" Length [+/- 2"]-
Part #: 22073

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 15mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

15mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22074

15mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22074

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 15mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

17mm Stainless Round Bar 303 Metric 72" Length [+/- 2"] - 
Part #: 22075

17mm Stainless Round Bar 303 Metric 72" Length [+/- 2"]-
Part #: 22075

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 17mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

17mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22076

17mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22076

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 17mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

18mm Stainless Round Bar 303 Metric 72" Length [+/- 2"] - 
Part #: 22077

18mm Stainless Round Bar 303 Metric 72" Length [+/- 2"]-
Part #: 22077

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 18mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

18mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22078

18mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22078

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 18mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

20mm Stainless Round Bar 303 Metric 72" Length [+/- 2"] - 
Part #: 22079

20mm Stainless Round Bar 303 Metric 72" Length [+/- 2"]-
Part #: 22079

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 20mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

25mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22082

25mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22082

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 25mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

20mm Stainless Round Bar 303 Metric 36" Length [+/- 2"] - 
Part #: 22080

20mm Stainless Round Bar 303 Metric 36" Length [+/- 2"]-
Part #: 22080

Click for more details

stainless-round-bar-303-annealed-cold-finish-1superZoom

Dimensions

  • Diameter: 20mm
See all available dimensions for this product
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

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