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Stainless Steel Round Tube 321

Stainless Steel Round Tube 321

321 stainless steel round tube is a titanium stabilized alloy designed for high temperature applications where resistance to cracking, scaling, and corrosion is essential. This grade maintains stability during thermal cycling and provides excellent oxidation resistance, making it suitable for aerospace, refinery equipment, high temperature chemical systems, and thermal expansion joints. Due to the titanium content, welding is not recommended, but the alloy performs reliably in conditions that would degrade standard stainless steel. Offered in seamless form for superior strength and consistency.


Applications: Aircraft engines, expansion joints, thermal equipment, refinery piping, high temperature chemical processing.


Material Properties

Link IconStainless Steel 321 Product Guide

9 Results

1.5" OD x 0.035" Wall x 1.43" ID 321 Stainless Steel Round Tube Welded Part # mp-00038357

1.5" OD x 0.035" Wall x 1.43" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038357
Sold & Shipped by Stainless Headers Mfg.
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
$446.95 for 1
$446.95 ea.
Camera Expand Details

Dimensions

  • Temper: Annealed
  • Inner Diameter: 1.43"
  • Outer Diameter: 1.5"
  • Wall: 0.035"
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Key Features

CUSTOM CUT USA U.S.A.Made DFARS Compliant MTR MTR NOT AVAILABLE product return Returns Acceptable.
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3" OD x 0.065" Wall x 2.87" ID 321 Stainless Steel Round Tube Welded Part # mp-00038344

3" OD x 0.065" Wall x 2.87" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038344
Sold & Shipped by Stainless Headers Mfg.
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
$194.95 for 1
$194.95 ea.
Camera Expand Details

Dimensions

  • Temper: Annealed
  • Inner Diameter: 2.87"
  • Outer Diameter: 3"
  • Wall: 0.065"
View more product details Click for more details

Key Features

CUSTOM CUT USA U.S.A.Made DFARS Compliant MTR MTR NOT AVAILABLE product return Returns Acceptable.
View more product details View more product details
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 Part # mp-00038313

1.625" OD x 0.065" Wall x 1.495" ID 321 Stainless Steel Round Tube Welded -
Part #: mp-00038313
Sold & Shipped by Stainless Headers Mfg.
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
$60.95 for 1
$60.95 ea.
Camera Expand Details

Dimensions

  • Temper: Annealed
  • Inner Diameter: 1.495"
  • Outer Diameter: 1.625"
  • Wall: 0.065"
View more product details Click for more details

Key Features

CUSTOM CUT USA U.S.A.Made DFARS Compliant MTR MTR NOT AVAILABLE product return Returns Acceptable.
View more product details View more product details
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.
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
$344.95 for 1
$344.95 ea.
Camera Expand Details

Dimensions

  • Temper: Annealed
  • Inner Diameter: 1.495"
  • Outer Diameter: 1.625"
  • Wall: 0.065"
View more product details Click for more details

Key Features

CUSTOM CUT USA U.S.A.Made DFARS Compliant MTR MTR NOT AVAILABLE product return Returns Acceptable.
View more product details View more product details
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.
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
$918.95 for 1
$918.95 ea.
Camera Expand Details

Dimensions

  • Temper: Annealed
  • Inner Diameter: 2.43"
  • Outer Diameter: 2.5"
  • Wall: 0.035"
View more product details Click for more details

Key Features

CUSTOM CUT USA U.S.A.Made DFARS Compliant MTR MTR NOT AVAILABLE product return Returns Acceptable.
View more product details View more product details
View more product details Click for more details

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.

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.

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