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Stainless Steel Ornamental Square Tube

Penn Stainless provides premium-quality stainless steel ornamental square tubing designed for both structural integrity and visual appeal. We have a large stock of stainless steel square tubing. Ornamental stainless steel comes in many sizes, grades, and finishes, and it makes it a great choice for various uses.

Our Ornamental Square Tubing Products
Penn Stainless stocks stainless steel ornamental square tubing primarily in grades 304/304L and 316/316L. Our square tubing comes in standard finishes.

These include mill finish and polished finishes. The polished options are 180 Grit (#4 polish), 240 Grit, 320 Grit, and mirror finish (#8 polish).

We provide square tubing that can be up to 24 inches square. The wall thickness is more than ½ inch. We also offer seamless sections that can be up to 30 feet long without girth welds.

Ornamental Square Tube Applications & Functionality
Stainless steel ornamental square tubing provides exceptional strength, corrosion resistance, and aesthetic versatility, making it suitable for numerous industries and applications, such as:

  • Architectural & Construction: Ideal for columns, decorative railings, entry gates, structural supports, and partitions, enhancing both safety and aesthetics.
  • Marine Applications: Our stainless steel square tubing is exceptionally resistant to corrosion. It is used for boat railings, ladders, and marine equipment.
  • Medical & Healthcare: Widely utilized in medical device manufacturing, hospital fixtures, and equipment where cleanliness and durability are critical.
  • Automotive Industry: Used in manufacturing durable and visually appealing vehicle accessories such as grille guards, racks, and step bars.
  • Food Processing & Equipment: Perfectly suited for sanitary environments and equipment because of its hygienic properties and ease of maintenance.
  • Furniture & Decorative Art: A popular choice for contemporary furniture, sculptures, and interior design elements, thanks to its modern appearance and formability.
Pipe and Tube Products
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Product Variations
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Choose Table:
304/304L Stainless Steel Mill Finish Swipe/scroll horizontally to view full table
304/304L Stainless Steel Mill Finish
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
OD
.5"
 C
OD
.625"
 C
OD
.75"
 C C C
OD
.875"
 C C C C C
OD
1"
 C
OD
1.25"
 C C
OD
1.5"
 C C C
OD
1.75"
 C C C C C
OD
2"
 C C
OD
2.5"
 C C
OD
3"
 C C C C
OD
3.5"
 C C C
OD
4"
 C C C
OD
5"
 C C C
OD
6"
 C C
OD
7"
 C C C
OD
8"
 C C
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
304/304L Stainless Steel 180 Grit Swipe/scroll horizontally to view full table
304/304L Stainless Steel 180 Grit
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
OD
.5"
 C C
OD
.625"
 C C
OD
.75"
 C C
OD
.875"
 C C C C C
OD
1"
 C
OD
1.25"
 C C
OD
1.5"
 C C C
OD
1.75"
 C C C C C C
OD
2"
 C C
OD
2.5"
 C C C
OD
3"
 C C C C C
OD
3.5"
 C C C C C
OD
4"
 C C C
OD
5"
 C C C C C
OD
6"
 C C C C C C
OD
7"
 C C C
OD
8"
 C C C C
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
316/316L Stainless Steel Mill Finish Swipe/scroll horizontally to view full table
316/316L Stainless Steel Mill Finish
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
OD
.5"
 C C
OD
.625"
 C C
OD
.75"
 C C C
OD
.875"
 C C C C C
OD
1"
 C C C C
OD
1.25"
 C C C C C C
OD
1.5"
 C C C C
OD
1.75"
 C C C C C C
OD
2"
 C C C C C
OD
2.5"
 C C
OD
3"
 C C C C C
OD
3.5"
 C C C C C
OD
4"
 C C C C
OD
5"
 C C C C C
OD
6"
 C C C
OD
7"
 C C C
OD
8"
 C C C C
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
316/316L Stainless Steel 180 Grit Swipe/scroll horizontally to view full table
316/316L Stainless Steel 180 Grit
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
OD
.5"
 C C
OD
.625"
 C C
OD
.75"
 C C C C
OD
.875"
 C C C C C
OD
1"
 C C C C
OD
1.25"
 C C C C C C
OD
1.5"
 C C C C C
OD
1.75"
 C C C C C C
OD
2"
 C C C
OD
2.5"
 C C C C C
OD
3"
 C C C C C
OD
3.5"
 C C C C C
OD
4"
 C C C C C
OD
5"
 C C C C C
OD
6"
 C C C C C C
OD
7"
 C C C
OD
8"
 C C C C
Gauge
.25"
Gauge
.313"
Gauge
.375"
Gauge
.5"
Gauge
7ga
Gauge
11ga
Gauge
12ga
Gauge
14ga
Gauge
16ga
Gauge
18ga
Processing
Production Cutting
More Info
Tubular Cutting
More Info
Tubular Polishing
More Info
Specifications
ASTM A554
More Info
Value-Added Services
  • Let Penn Stainless cut your next stainless square tube requirement to your exact dimensions
  • Large non standard square sections can be manufactured up to 24″ with wall thicknesses up to 1″ thick. Sections up to 40’ long can be manufactured without a girth weld
Miter Cutting

Miter cutting creates a joint by cutting two pieces at an angle and fitting them together. The cut is made at a precise angle. Penn Stainless Products can miter cut ornamental tubing to your specifications. Please contact a sales representative for more information.

Polishing

Positive Material Identification (PMI)

In some cases, it may be necessary to complete additional positive material identification testing. Penn Stainless Products can complete this testing in house or we can work with an independent laboratory to complete the testing. Please contact us for specific requirements.

Tolerances

Outside Dimension Tolerances:

Largest Specified Outside Dimension Across Flats, in.Wall Thickness, In.+/-, in. Across Flats, Convexity or Concavity incl.
To 1 1/4 incl.all0.015
Over 1 1/4 to 2 1/2, incl.all0.02
Over 2 1/2 to 5 1/2, incl.all0.03
Over 5 1/2 to 8, incl.all0.06

Twist Tolerances:

Largest Size, In.Twist in 3 ft, max, in.
Under 1/20.05
1/2 to 1 1/2, incl.0.075
Over 1 1/2 to 2 1/2, incl.0.095
Over 2 1/2 to 4, incl.0.125
Over 4 to 6, incl.0.25
Over 60.375

Straightness Tolerance:

The Straightness tolerance is 0.075 in. in 3ft using a 3ft straightedge and feeler gauge.

Maximum Radii of Corners:

Wall ThicknessRadii of Cornersmax, in.
Over 0.020 to 0.049, incl.3/32
Over 0.049 to 0.065, incl.1/8
Over 0.065 to 0.083, incl.9/64
Over 0.083 to 0.095, incl.1/16
Over 0.095 to 0.109, incl.13/64
Over 0.109 to 0.134, incl.7/32
Over 0.134 to 0.156, incl.1/4
Over 0.156 to 0.200, incl.3/8
Over 0.200 to 0.250, incl.1/2
Over 0.250 to 0.375, incl.3/4

Squareness of Sides:

+/- B = C * 0.006

Where:
B = tolerance for out of square
C = length of longest side