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Stainless Steel Round Tube 321

-48 Products

Stainless Steel 321 Product Guide Product

Reinforced with titanium, 321 stainless steel excels in high temperature environments, providing resistance to cracking and corrosion. Additionally, 321 stainless resists scaling at higher temperatures. The addition of titanium means that welding is not suggested for this alloy. Typically used in aircraft engines, expansion joints, thermal equipment, refinery equipment, and high temperature chemical processing equipment.

 We offer 321 stainless steel tubing in seamless.

 

Relevant Knowledge Hub Resources: Understanding Steel | The Weldability of Stainless Steel

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3/8" OD x 0.095" Wall x 0.185" ID Stainless Round Tube 321 Seamless -  Part # 23519

3/8" OD x 0.095" Wall x 0.185" ID Stainless Round Tube 321 Seamless-
Part #: 23519
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

3/8" OD x 0.035" Wall x 0.305" ID Stainless Round Tube 321 Seamless -  Part # 28171

3/8" OD x 0.035" Wall x 0.305" ID Stainless Round Tube 321 Seamless-
Part #: 28171
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1/2" OD x 0.035" Wall x 0.43" ID Stainless Round Tube 321 Seamless -  Part # 28172

1/2" OD x 0.035" Wall x 0.43" ID Stainless Round Tube 321 Seamless-
Part #: 28172
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1" OD x 0.028" Wall x 0.944" ID Stainless Round Tube 321 Seamless -  Part # 28434

1" OD x 0.028" Wall x 0.944" ID Stainless Round Tube 321 Seamless-
Part #: 28434
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1 1/2" OD x 0.035" Wall x 1.43" ID Stainless Round Tube 321 Seamless -  Part # 27715

1 1/2" OD x 0.035" Wall x 1.43" ID Stainless Round Tube 321 Seamless-
Part #: 27715
Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1.5" OD x 0.065" Wall x 1.37" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished Part # mp-00038235

1.5" OD x 0.065" Wall x 1.37" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished -
Part #: mp-00038235
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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

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$362.95 for 1
$362.95 ea.
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Dimensions

  • Outer Diameter: 1.5"
  • Wall: 0.065"
  • Inner Diameter: 1.37"
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Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
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2.5" OD x 0.065" Wall x 2.37" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished Part # mp-00038240

2.5" OD x 0.065" Wall x 2.37" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished -
Part #: mp-00038240
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $72.95 ea.
  • 24″ (2 ft.) - $159.95 ea.
  • 60″ (5 ft.) - $571.95 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

Update
$72.95 for 1
$72.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.5"
  • Wall: 0.065"
  • Inner Diameter: 2.37"
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Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
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1.875" OD x 0.065" Wall x 1.745" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038228

1.875" OD x 0.065" Wall x 1.745" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038228
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$178.95 for 1
$178.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 1.875"
  • Wall: 0.065"
  • Inner Diameter: 1.745"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
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3" OD x 0.049" Wall x 2.902" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038232

3" OD x 0.049" Wall x 2.902" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038232
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$675.95 for 1
$675.95 ea.
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Dimensions

  • Outer Diameter: 3"
  • Wall: 0.049"
  • Inner Diameter: 2.902"
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Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
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2" OD x 0.035" Wall x 1.93" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038227

2" OD x 0.035" Wall x 1.93" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038227
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $135.95 ea.
  • 24″ (2 ft.) - $269.95 ea.
  • 36″ (3 ft.) - $528.95 ea.
  • 60″ (5 ft.) - $676.95 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

Update
$135.95 for 1
$135.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2"
  • Wall: 0.035"
  • Inner Diameter: 1.93"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
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2" OD x 0.065" Wall x 1.87" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished Part # mp-00038242

2" OD x 0.065" Wall x 1.87" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished -
Part #: mp-00038242
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$50.95 for 1
$50.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2"
  • Wall: 0.065"
  • Inner Diameter: 1.87"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
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2.375" OD x 0.065" Wall x 2.245" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038239

2.375" OD x 0.065" Wall x 2.245" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038239
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
  • + Create Custom Cut
  • 12″ (1 ft.) - $50.95 ea.
  • 48″ (4 ft.) - $240.95 ea.
  • 60″ (5 ft.) - $299.95 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

Update
$50.95 for 1
$50.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.375"
  • Wall: 0.065"
  • Inner Diameter: 2.245"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

2.125" OD x 0.065" Wall x 1.995" ID 321 Stainless Steel Round Tube Welded Part # mp-00038251

2.125" OD x 0.065" Wall x 1.995" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038251
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$39.95 for 1
$39.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.125"
  • Wall: 0.065"
  • Inner Diameter: 1.995"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

2.125" OD x 0.065" Wall x 1.995" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished Part # mp-00038252

2.125" OD x 0.065" Wall x 1.995" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished -
Part #: mp-00038252
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$247.95 for 1
$247.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.125"
  • Wall: 0.065"
  • Inner Diameter: 1.995"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

1.5" OD x 0.035" Wall x 1.43" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038243

1.5" OD x 0.035" Wall x 1.43" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038243
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$225.95 for 1
$225.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 1.5"
  • Wall: 0.035"
  • Inner Diameter: 1.43"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

2.25" OD x 0.035" Wall x 2.18" ID 321 Stainless Steel Round Tube Welded Part # mp-00038244

2.25" OD x 0.035" Wall x 2.18" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038244
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$455.95 for 1
$455.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.25"
  • Wall: 0.035"
  • Inner Diameter: 2.18"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

1.75" OD x 0.049" Wall x 1.652" ID 321 Stainless Steel Round Tube Welded Part # mp-00038248

1.75" OD x 0.049" Wall x 1.652" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038248
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$512.95 for 1
$512.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 1.75"
  • Wall: 0.049"
  • Inner Diameter: 1.652"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

1.75" OD x 0.035" Wall x 1.68" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038256

1.75" OD x 0.035" Wall x 1.68" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038256
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$648.95 for 1
$648.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 1.75"
  • Wall: 0.035"
  • Inner Diameter: 1.68"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

2.5" OD x 0.049" Wall x 2.402" ID 321 Stainless Steel Round Tube Welded Part # mp-00038259

2.5" OD x 0.049" Wall x 2.402" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038259
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$432.95 for 1
$432.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.5"
  • Wall: 0.049"
  • Inner Diameter: 2.402"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

2.5" OD x 0.035" Wall x 2.43" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038271

2.5" OD x 0.035" Wall x 2.43" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038271
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
  • + Create Custom Cut
  • 24″ (2 ft.) - $331.95 ea.
  • 36″ (3 ft.) - $651.95 ea.
  • 60″ (5 ft.) - $834.95 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

Update
$331.95 for 1
$331.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.5"
  • Wall: 0.035"
  • Inner Diameter: 2.43"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

2.25" OD x 0.065" Wall x 2.12" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038272

2.25" OD x 0.065" Wall x 2.12" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038272
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$97.95 for 1
$97.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2.25"
  • Wall: 0.065"
  • Inner Diameter: 2.12"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

1.625" OD x 0.065" Wall x 1.495" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038278

1.625" OD x 0.065" Wall x 1.495" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038278
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$119.95 for 1
$119.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 1.625"
  • Wall: 0.065"
  • Inner Diameter: 1.495"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
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2" OD x 0.065" Wall x 1.87" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish Part # mp-00038283

2" OD x 0.065" Wall x 1.87" ID 321 Stainless Steel Round Tube Welded-#4 Brushed Finish -
Part #: mp-00038283
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$42.95 for 1
$42.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 2"
  • Wall: 0.065"
  • Inner Diameter: 1.87"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

1.875" OD x 0.065" Wall x 1.745" ID 321 Stainless Steel Round Tube Welded Part # mp-00038273

1.875" OD x 0.065" Wall x 1.745" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038273
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
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
$101.95 for 1
$101.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 1.875"
  • Wall: 0.065"
  • Inner Diameter: 1.745"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details

1.75" OD x 0.065" Wall x 1.62" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished Part # mp-00038274

1.75" OD x 0.065" Wall x 1.62" ID 321 Stainless Steel Round Tube Welded-#8 Mirror Polished -
Part #: mp-00038274
Sold & shipped by Stainless Headers Mfg.
Select a Size or Custom Cut
  • + Create Custom Cut
  • 24″ (2 ft.) - $105.95 ea.
  • 36″ (3 ft.) - $208.95 ea.
  • 48″ (4 ft.) - $302.95 ea.
  • 60″ (5 ft.) - $386.95 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

Update
$105.95 for 1
$105.95 ea.
Expand Details

Dimensions

  • Outer Diameter: 1.75"
  • Wall: 0.065"
  • Inner Diameter: 1.62"
Click for more details

Key Features

CUSTOM CUT U.S.A. MADE FREE MTR AVAILABLE
View more product details
Click for more details
  • 1

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