Value of your cart over $1000? Chat or Call us For an additional discount!321 Stainless Steel
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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 carry 321 in hex bar, cold finish hex bar, rectangle bar, annealed rectangle bar, round bar, round tube, seamless round tube, and sheet/plate.
NEW! - We offer waterjet services for this product. Learn More | Request Quote >
Relevant Knowledge Hub Resources: 5 Reasons to Cut to Size | The Weldability of Stainless Steel
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Pricing and availability for this item changes frequently. Contact us now for a fast quote.
Dimensions
- Outer Diameter: 0.375"
- Wall: 0.095"
- Inner Diameter: 0.185"
Pricing and availability for this item changes frequently. Contact us now for a fast quote.
SALE!
Huge Savings on Overstock Lengths - Ships from GA
Pricing and availability for this item changes frequently. Contact us now for a fast quote.
Dimensions
- Outer Diameter: 1.5"
- Wall: 0.035"
- Inner Diameter: 1.43"
Pricing and availability for this item changes frequently. Contact us now for a fast quote.
- Dia. 0.4375"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $7.68 ea.
- 24″ (2 ft.) - $15.36 ea.
-
36″ (3 ft.)
- $23.04 ea.
- 48″ (4 ft.) - $30.72 ea.
- 72″ (6 ft.) - $41.48 ea.
- 96″ (8 ft.) - $61.45 ea.
- 144″ (12 ft.) - $82.96 ea.
- Custom Cut
Starting at
$7.68
$7.68
$7.68 ea.
- Hex 0.625"
Stainless Hex Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $14.25 ea.
- 24″ (2 ft.) - $28.50 ea.
-
36″ (3 ft.)
- $42.75 ea.
- 48″ (4 ft.) - $57.00 ea.
- 72″ (6 ft.) - $76.96 ea.
- 96″ (8 ft.) - $114.01 ea.
- 144″ (12 ft.) - $153.91 ea.
- Custom Cut
Starting at
$14.25
$14.25
$14.25 ea.
- Dia. 0.375"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $16.95 ea.
- 24″ (2 ft.) - $32.55 ea.
-
36″ (3 ft.)
- $45.77 ea.
- 48″ (4 ft.) - $54.23 ea.
- 72″ (6 ft.) - $79.71 ea.
- 96″ (8 ft.) - $110.35 ea.
- 144″ (12 ft.) - $159.40 ea.
- Custom Cut
Starting at
$16.95
$16.95
$16.95 ea.
- Hex 0.4375"
Stainless Hex Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $19.82 ea.
- 24″ (2 ft.) - $38.22 ea.
-
36″ (3 ft.)
- $54.09 ea.
- 48″ (4 ft.) - $65.00 ea.
- 72″ (6 ft.) - $91.10 ea.
- 96″ (8 ft.) - $115.77 ea.
- 144″ (12 ft.) - $165.09 ea.
- Custom Cut
Starting at
$19.82
$19.82
$19.82 ea.
- Dia. 0.5"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $22.17 ea.
- 24″ (2 ft.) - $42.56 ea.
-
36″ (3 ft.)
- $59.88 ea.
- 48″ (4 ft.) - $70.99 ea.
- 72″ (6 ft.) - $98.48 ea.
- 96″ (8 ft.) - $144.44 ea.
- 144″ (12 ft.) - $196.96 ea.
- Custom Cut
Starting at
$22.17
$22.17
$22.17 ea.
- Dia. 1.125"
Stainless Round Bar 321- Annealed Cold Finish
Select...
- 12″ (1 ft.) - $51.09 ea.
- 24″ (2 ft.) - $102.17 ea.
-
36″ (3 ft.)
- $316.39 ea.
- 48″ (4 ft.) - $375.00 ea.
- 72″ (6 ft.) - $495.52 ea.
- 96″ (8 ft.) - $726.75 ea.
- 144″ (12 ft.) - $991.03 ea.
- Custom Cut
Starting at
$51.09
$51.09
$51.09 ea.
- Thick 0.25" |
- Width 2.5"
Stainless Rectangle Bar 321-Annealed
Select...
- 12″ (1 ft.) - $30.70 ea.
- 24″ (2 ft.) - $61.40 ea.
-
36″ (3 ft.)
- $92.10 ea.
- 48″ (4 ft.) - $122.83 ea.
- 72″ (6 ft.) - $186.02 ea.
- 96″ (8 ft.) - $245.63 ea.
- Custom Cut
Starting at
$30.70
$30.70
$30.70 ea.
SALE!
Huge Savings on Overstock Lengths - Ships from GA
- Dia. 0.75"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $30.77 ea.
- 24″ (2 ft.) - $59.08 ea.
-
36″ (3 ft.)
- $83.07 ea.
- 48″ (4 ft.) - $98.48 ea.
- 72″ (6 ft.) - $136.64 ea.
- 96″ (8 ft.) - $200.40 ea.
- 144″ (12 ft.) - $273.29 ea.
- Custom Cut
Starting at
$30.77
$30.77
$30.77 ea.
- Dia. 0.625"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $32.67 ea.
- 24″ (2 ft.) - $62.98 ea.
-
36″ (3 ft.)
- $89.18 ea.
- 48″ (4 ft.) - $107.16 ea.
- 72″ (6 ft.) - $150.17 ea.
- 96″ (8 ft.) - $190.82 ea.
- 144″ (12 ft.) - $272.11 ea.
- Custom Cut
Starting at
$32.67
$32.67
$32.67 ea.
- Hex 1"
Stainless Hex Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $36.35 ea.
- 24″ (2 ft.) - $72.71 ea.
-
36″ (3 ft.)
- $109.06 ea.
- 48″ (4 ft.) - $145.41 ea.
- 72″ (6 ft.) - $196.30 ea.
- 96″ (8 ft.) - $290.82 ea.
- 144″ (12 ft.) - $392.61 ea.
- Custom Cut
Starting at
$36.35
$36.35
$36.35 ea.
- Dia. 0.9375"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $37.97 ea.
- 24″ (2 ft.) - $75.94 ea.
-
36″ (3 ft.)
- $232.45 ea.
- 48″ (4 ft.) - $275.49 ea.
- 72″ (6 ft.) - $382.25 ea.
- 96″ (8 ft.) - $560.63 ea.
- 144″ (12 ft.) - $764.48 ea.
- Custom Cut
Starting at
$37.97
$37.97
$37.97 ea.
- Dia. 0.6875"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $41.34 ea.
- 24″ (2 ft.) - $79.42 ea.
-
36″ (3 ft.)
- $111.66 ea.
- 48″ (4 ft.) - $132.33 ea.
- 72″ (6 ft.) - $183.61 ea.
- 96″ (8 ft.) - $269.30 ea.
- 144″ (12 ft.) - $367.22 ea.
- Custom Cut
Starting at
$41.34
$41.34
$41.34 ea.
- Hex 1.125"
Stainless Hex Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $47.29 ea.
- 24″ (2 ft.) - $94.61 ea.
-
36″ (3 ft.)
- $141.91 ea.
- 48″ (4 ft.) - $189.20 ea.
- 72″ (6 ft.) - $535.80 ea.
- 96″ (8 ft.) - $378.43 ea.
- 144″ (12 ft.) - $510.87 ea.
- Custom Cut
Starting at
$47.29
$47.29
$47.29 ea.
- Dia. 1"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $62.30 ea.
- 24″ (2 ft.) - $119.64 ea.
-
36″ (3 ft.)
- $171.99 ea.
- 48″ (4 ft.) - $219.34 ea.
- 72″ (6 ft.) - $299.11 ea.
- 96″ (8 ft.) - $438.69 ea.
- 144″ (12 ft.) - $598.21 ea.
- Custom Cut
Starting at
$62.30
$62.30
$62.30 ea.
- Dia. 0.875"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $66.05 ea.
- 24″ (2 ft.) - $127.38 ea.
-
36″ (3 ft.)
- $180.36 ea.
- 48″ (4 ft.) - $216.71 ea.
- 72″ (6 ft.) - $303.70 ea.
- 96″ (8 ft.) - $385.92 ea.
- 144″ (12 ft.) - $550.36 ea.
- Custom Cut
Starting at
$66.05
$66.05
$66.05 ea.
- Dia. 1.25"
Stainless Round Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $92.30 ea.
- 24″ (2 ft.) - $184.59 ea.
-
36″ (3 ft.)
- $276.89 ea.
- 48″ (4 ft.) - $369.19 ea.
- 72″ (6 ft.) - $467.27 ea.
- 96″ (8 ft.) - $738.41 ea.
- 144″ (12 ft.) - $934.53 ea.
- Custom Cut
Starting at
$92.30
$92.30
$92.30 ea.
- Hex 1.625"
Stainless Hex Bar 321 Cold Finish
Select...
- 12″ (1 ft.) - $95.89 ea.
- 24″ (2 ft.) - $191.79 ea.
-
36″ (3 ft.)
- $570.25 ea.
- 48″ (4 ft.) - $675.85 ea.
- 72″ (6 ft.) - $937.75 ea.
- 96″ (8 ft.) - $1,375.36 ea.
- 144″ (12 ft.) - $1,875.51 ea.
- Custom Cut
Starting at
$95.89
$95.89
$95.89 ea.
- Thick 0.25"
Stainless Plate 321
Select...
- 12″ X 12″ (1 X 1 ft.) - $209.49 ea.
- 12″ X 24″ (1 X 2 ft.) - $403.72 ea.
- 12″ X 36″ (1 X 3 ft.) - $582.72 ea.
- 12″ X 48″ (1 X 4 ft.) - $746.50 ea.
- 24″ X 24″ (2 X 2 ft.) - $746.50 ea.
- 24″ X 36″ (2 X 3 ft.) - $982.64 ea.
- 24″ X 48″ (2 X 4 ft.) - $1,279.73 ea.
- 36″ X 36″ (3 X 3 ft.) - $1,405.40 ea.
- 36″ X 48″ (3 X 4 ft.) - $1,828.18 ea.
Starting at
$209.49
$209.49
$209.49 ea.
- Thick 0.025"
Stainless Sheet 321
Select...
- 12″ X 12″ (1 X 1 ft.) - $253.22 ea.
- 12″ X 24″ (1 X 2 ft.) - $272.25 ea.
- 12″ X 36″ (1 X 3 ft.) - $291.77 ea.
- 12″ X 48″ (1 X 4 ft.) - $277.98 ea.
- 24″ X 24″ (2 X 2 ft.) - $280.16 ea.
- 24″ X 36″ (2 X 3 ft.) - $312.05 ea.
- 24″ X 48″ (2 X 4 ft.) - $341.61 ea.
- 36″ X 36″ (3 X 3 ft.) - $358.05 ea.
- 36″ X 48″ (3 X 4 ft.) - $407.41 ea.
- 36″ X 60″ (3 X 5 ft.) - $488.20 ea.
- 48″ X 48″ (4 X 4 ft.) - $516.06 ea.
- 48″ X 60″ (4 X 5 ft.) - $534.71 ea.
- 48″ X 96″ (4 X 8 ft.) - $647.55 ea.
- 48″ X 120″ (4 X 10 ft.) - $660.79 ea.
Starting at
$253.22