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Stainless Steel Round Bar – 321

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Stainless Steel Round Bar – 321

321 stainless steel round bar is reinforced with titanium, which helps it perform well in high temperature environments. This grade resists cracking, corrosion, and scaling when exposed to heat, making it useful for aerospace, thermal, and industrial applications where stability is important.

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

Material Properties

Stainless Steel 321 Product Guide |

Stainless Steel 321 Round Bar Tolerances

Stainless Steel Round Bar – 321

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

Material Properties

Stainless Steel 321 Product Guide |

Stainless Steel 321 Round Bar Tolerances

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34 results

See the savings stack up in your cart in quantities of 5, 10, 20 or 50+ of 304 & 316 stainless round bar

3 1/4" Stainless Round Bar 321 Part # mp-00041719

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$340.50 for 1

$340.50 ea.

Expand Details

Dimensions

Diameter: 3.25"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041719

3 1/4" Stainless Round Bar 321 Part # mp-00041719

Dimensions

Diameter: 3.25"
Ships In: 5-6 Business Days

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Select a Size

6″ (6 in.) - $340.50 ea.
12″ (1 ft.) - $505.78 ea.
24″ (2 ft.) - $789.01 ea.
36″ (3 ft.) - $1,080.47 ea.
48″ (4 ft.) - $1,361.34 ea.
72″ (6 ft.) - $1,962.37 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

3 1/2" Stainless Round Bar 321 Part # mp-00041859

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$308.16 for 1

$308.16 ea.

Expand Details

Dimensions

Diameter: 3.5"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Key Features

CUSTOM CUT DFARS Compliant

MTR NOT AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041859

3 1/2" Stainless Round Bar 321 Part # mp-00041859

Dimensions

Diameter: 3.5"
Ships In: 5-6 Business Days

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Select a Size

6″ (6 in.) - $308.16 ea.
24″ (2 ft.) - $666.97 ea.
36″ (3 ft.) - $900.81 ea.
48″ (4 ft.) - $1,126.15 ea.
72″ (6 ft.) - $1,609.57 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

3 5/8" Stainless Round Bar 321 Part # mp-00041766

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$321.37 for 1

$321.37 ea.

Expand Details

Dimensions

Diameter: 3.625"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041766

3 5/8" Stainless Round Bar 321 Part # mp-00041766

Dimensions

Diameter: 3.625"
Ships In: 5-6 Business Days

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Select a Size

6″ (6 in.) - $321.37 ea.
12″ (1 ft.) - $467.52 ea.
24″ (2 ft.) - $716.80 ea.
36″ (3 ft.) - $974.18 ea.
48″ (4 ft.) - $1,222.19 ea.
72″ (6 ft.) - $1,753.64 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

3 3/4" Stainless Round Bar 321 Part # mp-00041840

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$331.62 for 1

$331.62 ea.

Expand Details

Dimensions

Diameter: 3.75"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041840

3 3/4" Stainless Round Bar 321 Part # mp-00041840

Dimensions

Diameter: 3.75"
Ships In: 5-6 Business Days

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Select a Size

6″ (6 in.) - $331.62 ea.
12″ (1 ft.) - $488.02 ea.
24″ (2 ft.) - $755.50 ea.
36″ (3 ft.) - $1,031.14 ea.
48″ (4 ft.) - $1,296.75 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

4 1/4" Stainless Round Bar 321 Part # mp-00041735

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$385.11 for 1

$385.11 ea.

Expand Details

Dimensions

Diameter: 4.25"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041735

4 1/4" Stainless Round Bar 321 Part # mp-00041735

Dimensions

Diameter: 4.25"
Ships In: 5-6 Business Days

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Select a Size

6″ (6 in.) - $385.11 ea.
12″ (1 ft.) - $586.00 ea.
24″ (2 ft.) - $931.86 ea.
36″ (3 ft.) - $1,286.62 ea.
48″ (4 ft.) - $1,628.48 ea.
72″ (6 ft.) - $2,358.99 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

4 1/2" Stainless Round Bar T-321 - Part # 23922

Pricing and availability for this item changes frequently. Contact us now for a fast quote.

4 3/4" Stainless Round Bar 321 Part # mp-00041848

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$1,120.72 for 1

$1,120.72 ea.

Expand Details

Dimensions

Diameter: 4.75"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041848

4 3/4" Stainless Round Bar 321 Part # mp-00041848

Dimensions

Diameter: 4.75"
Ships In: 5-6 Business Days

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Select a Size

24″ (2 ft.) - $1,120.72 ea.
36″ (3 ft.) - $1,564.67 ea.
48″ (4 ft.) - $1,992.47 ea.
72″ (6 ft.) - $2,904.97 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

5 3/4" Stainless Round Bar 321 Part # mp-00041863

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$550.16 for 1

$550.16 ea.

Expand Details

Dimensions

Diameter: 5.75"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): AMS-QQ-S-763 , ASTM-A276 , AMS-5645

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041863

5 3/4" Stainless Round Bar 321 Part # mp-00041863

Dimensions

Diameter: 5.75"
Ships In: 5-6 Business Days

Material Meets These Standard(s): AMS-QQ-S-763 , ASTM-A276 , AMS-5645

Select a Size

6″ (6 in.) - $550.16 ea.
12″ (1 ft.) - $916.09 ea.
24″ (2 ft.) - $1,554.68 ea.
36″ (3 ft.) - $2,203.55 ea.
48″ (4 ft.) - $2,828.82 ea.
72″ (6 ft.) - $4,159.49 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

6" Stainless Round Bar 321 Part # mp-00041787

Sold & Shipped by Slice of Stainless

Select a Size

QTY

Update

$981.11 for 1

$981.11 ea.

Expand Details

Dimensions

Diameter: 6"
Ships In: 5-6 Business Days

Click for more details

$stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-mob{product.code}$

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

Non-returnable

View more product details

Click for more details

stainless-round-bar-304-cold-finish-1superZoom_300Wx300H-deskmp-00041787

6" Stainless Round Bar 321 Part # mp-00041787

Dimensions

Diameter: 6"
Ships In: 5-6 Business Days

Material Meets These Standard(s): ASTM-A276 , AMS-QQ-S-763 , AMS-5645

Select a Size

12″ (1 ft.) - $981.11 ea.
24″ (2 ft.) - $1,677.37 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

Displaying 26 - 34 of 34 results

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Stainless Steel Round Bar – 321

Material Properties

Material Properties

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3 1/4" Stainless Round Bar 321 Part # mp-00041719

QTY

3 1/2" Stainless Round Bar 321 Part # mp-00041859

QTY

3 5/8" Stainless Round Bar 321 Part # mp-00041766

QTY

3 3/4" Stainless Round Bar 321 Part # mp-00041840

QTY

4 1/4" Stainless Round Bar 321 Part # mp-00041735

QTY

4 1/2" Stainless Round Bar T-321 - Part # 23922

4 3/4" Stainless Round Bar 321 Part # mp-00041848

QTY

5 3/4" Stainless Round Bar 321 Part # mp-00041863

QTY

6" Stainless Round Bar 321 Part # mp-00041787

QTY

Displaying 26 - 34 of 34 results

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