Stainless Steel Square Tubes

Specifications of Stainless Steel Square Tubes

Product Name	Stainless Steel Square Tube
Thickness	0.18mm – 6mm or as per customer’s specifications
Length	1-12 meters (cut to order)
Outer Diameter	5mm – 400mm
Tolerance	Outer Diameter:+/-0.2mm,Thickness:+/-10% or as customer request,Length:+/-10mm
Standard	ASTM，AiSi，DIN，EN，GB，JIS
Material Grade	304/304L/TP304/TP316L/316/316L/316Ti/321/347H/310S
Technique	Cold Rolled,Hot Rolled or Welded
Surface Treatment	Brushing, polishing, mirror, bright, sandblasting, color plating
Processing Services	Stretching, welding, drilling, laser cutting, etc.
MOQ	5 tons
Packing	Standard export packing or as required

Advantages of Stainless Steel Square Tubes

1. Excellent Corrosion Resistance: Stainless steel (containing elements such as chromium and nickel) is well-known for its corrosion resistance, making it resistant to corrosive media.
2. Strong Structurally and Highly Load-Bearing: High tensile strength; thicker walls increase load-bearing capacity; ductility is also relatively good.
3. Diverse Appearances and High Decorative Value: A variety of surface finishes (brushed, mirrored, sandblasted, matte, etc.) are available to meet a variety of decorative needs.
4. Easy to Process: Easy to cut, bend, and weld, it can be fabricated into various sizes and shapes as needed.

Applications of Stainless Steel Square Tubes

• Architecture and Decoration: Used in outdoor guardrails, stair railings, door and window frames, curtain wall keels, interior ceiling supports, bridges and roads, etc.
• Industrial Manufacturing: Used as frames and supports for machinery, fluid conveying pipes, hygienic piping, and supports and piping for chemical and food processing equipment.
• Furniture and Home Furnishings: Metal frames and supports for high-end furniture, supporting structures for lamps and sculptures, kitchen shelves, bathroom racks, towel racks, etc.
• Municipal and Public Facilities: Light poles, traffic barriers, trash cans, bus stop frames, billboard brackets, park landscape racks, fire protection pipes, sprinkler system brackets, etc.
• Other Applications: Food processing equipment, medical devices, aquaculture equipment, stainless steel storage tanks, solar panels, etc.

Theoretical Weight of Stainless Steel Square Tubes

Below is a table showing the theoretical weights of some common stainless steel square tube specifications. The data is calculated based on a stainless steel density of 7.93 g/cm³.

Side Length (mm)	Wall Thickness (mm)	Theoretical Weight (kg/m)	Side Length (mm)	Wall Thickness (mm)	Theoretical Weight (kg/m)
10×10	1	0.283	22×22	1.2	0.785
12.7×12.7	1.2	0.434	22×22	1.5	0.967
12.7×12.7	1.5	0.528	22×22	2	1.258
15×15	1	0.44	25×25	1	0.755
15×15	1.2	0.521	25×25	1.2	0.898
15×15	1.5	0.637	25×25	1.5	1.108
16×16	1	0.472	25×25	2	1.446
16×16	1.2	0.558	25×25	3	2.075
16×16	1.5	0.684	30×30	1	0.912
20×20	1	0.597	30×30	1.2	1.087
20×20	1.2	0.709	30×30	1.5	1.344
20×20	1.5	0.872	30×30	2	1.761
20×20	2	1.132	30×30	2.5	2.162
22×22	1	0.66	30×30	3	2.547

If this does not have the weight you want, you can use my calculation tool – Metal Weight Pipe Calculator, this page to calculate.

FAQ About SS Square Tube

Q: What is the difference between stainless steel square tubes and galvanized square tubes?

• Material Difference: Stainless steel square tubes are based on stainless steel, while galvanized square tubes are based on carbon steel.
• Corrosion Resistance Difference: Stainless steel square tubes’ corrosion resistance is achieved through the stable oxide film they form, while galvanized square tubes’ corrosion resistance is based on the zinc layer on the surface. Stainless steel square tubes offer even greater corrosion resistance.
• Cost: Stainless steel square tubes have high raw material costs, often 2-4 times the price of galvanized square tubes. Galvanized square tubes offer greater cost-effectiveness and are suitable for budget-constrained applications with low corrosion protection requirements.

Q: How to choose between welded square tubes and seamless square tubes?

• For applications such as structural support, decoration, and furniture, welded stainless steel square tubes offer high cost-effectiveness and flexible dimensions.
• For critical structural components that withstand high pressure, high strength, or fluid transport, seamless stainless steel square tubes offer greater pressure-bearing capacity but are more expensive.

Q: Can stainless steel square tubes be welded? What welding rods are used?

Yes, welding is possible; the welding rod must match the material.

• For 304/321 materials: Use A102 stainless steel welding rods (corrosion-resistant);
• for 316L materials: Use A022 stainless steel welding rods (acid- and alkali-resistant).

Q: Does thicker stainless steel square tubes improve performance?

Not necessarily. Increasing wall thickness improves load-bearing capacity and deformation resistance, but also increases weight and cost. The choice depends on the specific application.

For example, outdoor guardrails require sufficient wall thickness to ensure stability, while excessively thick indoor decorative brackets can be bulky and wasteful.

Q: What is the price per ton of stainless steel square tube (in USD)?

The price of stainless steel square tube varies depending on factors such as material, specifications, surface treatment, and production process. The prices for stainless steel square tubes vary by material as follows:

• 201 stainless steel welded square tube price: Estimated range: $2,500 – $3,200 USD/ton
• 304 stainless steel square tube price: Estimated range: $3,500 – $4,500 USD/ton
• 316 stainless steel square tube price: Estimated range: $5,000 – $6,500+ USD/ton

The price of stainless steel square tubes can vary significantly due to various factors. For accurate pricing, please contact us for the latest and most accurate information.

Why Choose Us

• Rich Experience: 17 years of production experience and 14 years of export experience, providing cost-effective solutions.
• Reliable Quality: Strict inspection of raw materials and finished products ensures corrosion resistance and strength.
• Flexible Service: We offer cutting, bending, polishing, and other processing options, as well as custom finishing.
• Professional and Reliable: ISO 9001 and ISO 14001 certified, offering stable product performance and a comprehensive range of specifications.

Wanzhi Steel leverages its extensive professional experience, strict quality control, and flexible service capabilities to provide you with cost-effective stainless steel pipe solutions. If you require stainless steel pipe in any specification, please contact us for details.