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Stainless Steel Square Bar

Stainless Steel Square Bar

Stainless steel square bar offers excellent durability, corrosion resistance, and strength, making it suitable for projects exposed to weather, chemicals, or high temperatures. The solid square profile provides uniform strength in all directions, supporting fabrication, structural frames, machinery parts, and architectural elements. Available in a wide range of grades, stainless square bar performs consistently in both indoor and outdoor environments and can be ordered in full lengths or custom cut sizes.


Applications: Structural framing, machinery components, supports, fasteners, architectural features, industrial hardware.


Available Alloys: 17-4 | 303 | 304 | 316 | 410 | 416 | 420 | 440C


SALE! Select Cut Sizes

1/4" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 427

1/4" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 427

QTY

Update
$3.47 for 1
$3.47 ea.
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.25"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/2" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 431

1/2" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 431
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.5"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/2" Stainless Square Bar 303-Annealed Cold Drawn Part # 19639

1/2" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 19639
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.5"
View more product details Click for more details
stainless-square-bar-303-cold-drawn-1superZoom
Material Meets These Standard(s): AMS-5640,ASTM-A582

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1 1/2" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 438

1 1/2" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 438
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 1.5"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

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

1" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 19644
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 1"
View more product details Click for more details
stainless-square-bar-303-cold-drawn-1superZoom
Material Meets These Standard(s): AMS-5640,ASTM-A582

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/4" Stainless Square Bar 316/316L-Annealed Cold Finish Part # 2208

1/4" Stainless Square Bar 316/316L-Annealed Cold Finish -
Part #: 2208
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.25"
View more product details Click for more details
stainless-square-bar-316-annealed-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,ASTM-A276,ASTM-A479,AMS-5653,AMS-5648

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1 1/4" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 437

1 1/4" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 437
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 1.25"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/2" Stainless Square Bar 410 Precision Ground Part # 19328

1/2" Stainless Square Bar 410 Precision Ground -
Part #: 19328

3" Stainless Square Bar 304/304L-Annealed Hot Rolled Part # 19496

3" Stainless Square Bar 304/304L-Annealed Hot Rolled -
Part #: 19496
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 3"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/4" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 433

3/4" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 433
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.75"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1 1/4" Stainless Square Bar 303-Annealed Cold Drawn Part # 13018

1 1/4" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 13018
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 1.25"
View more product details Click for more details
stainless-square-bar-303-1superZoom
Material Meets These Standard(s): AMS-5640,ASTM-A582

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

2" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 440

2" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 440
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 2"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

5/8" Stainless Square Bar 303-Annealed Cold Drawn Part # 19640

5/8" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 19640
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.625"
View more product details Click for more details
stainless-square-bar-303-cold-drawn-1superZoom
Material Meets These Standard(s): AMS-5640,ASTM-A582

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

5/8" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 432

5/8" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 432
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.625"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

2" Stainless Square Bar 316/316L-Annealed Cold Finish Part # 2218

2" Stainless Square Bar 316/316L-Annealed Cold Finish -
Part #: 2218
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 2"
View more product details Click for more details
stainless-square-bar-316-annealed-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,ASTM-A276,ASTM-A479,AMS-5653,AMS-5648

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/4" Stainless Square Bar 316/316L-Annealed Cold Finish Part # 2212

3/4" Stainless Square Bar 316/316L-Annealed Cold Finish -
Part #: 2212
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.75"
View more product details Click for more details
stainless-square-bar-316-annealed-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,ASTM-A276,ASTM-A479,AMS-5653,AMS-5648

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 435

1" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 435
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 1"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1" Stainless Square Bar 316/316L-Annealed Cold Finish Part # 2214

1" Stainless Square Bar 316/316L-Annealed Cold Finish -
Part #: 2214
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 1"
View more product details Click for more details
stainless-square-bar-316-annealed-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,ASTM-A276,ASTM-A479,AMS-5653,AMS-5648

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

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

1 1/2" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 20361
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 1.5"
View more product details Click for more details
stainless-square-bar-303-1superZoom
Material Meets These Standard(s): AMS-5640,ASTM-A582

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

2" Stainless Square Bar 17-4 PH Cond. A HRAP Part # 23141

2" Stainless Square Bar 17-4 PH Cond. A HRAP -
Part #: 23141
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

3" Stainless Square Bar 17-4 PH Cond. A HRAP Part # 21460

3" Stainless Square Bar 17-4 PH Cond. A HRAP -
Part #: 21460
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Condition A
  • Height: 3"
View more product details Click for more details
stainless-square-bar-17-4-annealed-hrap-ph-1superZoom
Material Meets These Standard(s): ASTM-A564,AMS-5643,ASTM-F899

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/8" Stainless Square Bar 304/304L-Annealed Cold Finish Part # 429

3/8" Stainless Square Bar 304/304L-Annealed Cold Finish -
Part #: 429
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.375"
View more product details Click for more details
stainless-square-bar-304-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,AMS-5639,AMS-5647,ASTM-A276,ASTM-A479

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/2" Stainless Square Bar 316/316L-Annealed Cold Finish Part # 2210

1/2" Stainless Square Bar 316/316L-Annealed Cold Finish -
Part #: 2210
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.5"
View more product details Click for more details
stainless-square-bar-316-annealed-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,ASTM-A276,ASTM-A479,AMS-5653,AMS-5648

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/4" Stainless Square Bar 303-Annealed Cold Drawn Part # 19635

1/4" Stainless Square Bar 303-Annealed Cold Drawn -
Part #: 19635
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.25"
View more product details Click for more details
stainless-square-bar-303-cold-drawn-1superZoom
Material Meets These Standard(s): AMS-5640,ASTM-A582

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/8" Stainless Square Bar 316/316L-Annealed Cold Finish Part # 2209

3/8" Stainless Square Bar 316/316L-Annealed Cold Finish -
Part #: 2209
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Temper: Annealed
  • Height: 0.375"
View more product details Click for more details
stainless-square-bar-316-annealed-cold-finish-1superZoom
Material Meets These Standard(s): AMS-QQ-S-763,ASTM-A276,ASTM-A479,AMS-5653,AMS-5648

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

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