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Stainless Steel Profiles
Stainless Steel Square Bars
Structural profiles · Square bars

Stainless Steel Square Bars

For structural, machining and decorative work: frameworks, supports, shafts, metal furniture and precision parts. Made from mill-verified material from top Chinese mills, for consistent strength, straightness and surface quality.
Grades
201, 304, 316L
Sizes
5×5 to 40×40 mm
Finishes
Brushed or mirror polish on request
Documents
MTC and quality report
Get a quote / send drawingsFind your size
SANMEI METAL  SQUARE BAR
stainless steel square bars
Square bars in 201, 304 and 316L, cut to length on request.

Find your square bar size.

10 standard sizes. Pick a grade or type a size, then ask for the one you need; it goes straight into your quote request.
10 sizes
Size, mm (side × side)
Size, inch
Grades
Mill sources
5×5
≈ 3/16" × 3/16"
201304316L
Tsingshan (201)
Ask for this
6×6
≈ 1/4" × 1/4"
304
—
Ask for this
8×8
≈ 5/16" × 5/16"
201304
—
Ask for this
10×10
≈ 13/32" × 13/32"
201304
—
Ask for this
12×12
≈ 15/32" × 15/32"
201304
—
Ask for this
15×15
≈ 19/32" × 19/32"
201304
—
Ask for this
20×20
≈ 25/32" × 25/32"
201304316L
—
Ask for this
25×25
≈ 31/32" × 31/32"
201
—
Ask for this
30×30
≈ 1-3/16" × 1-3/16"
304316L
—
Ask for this
40×40
≈ 1-9/16" × 1-9/16"
201304316L
—
Ask for this

Inch sizes are converted from mm and rounded. Every size can be cut to length.

Customization and fabrication

Square bars made to your project.

Custom stainless steel square bars with flexible dimensions, non-standard sizes and surface finishes, processed to your project requirements with verified MTCs and quality reports.
Non-standard sizes
Brushed or mirror polish
Cutting, drilling and edge rounding
Project fabrication support →Send your drawing
welding stainless steel

Square bar FAQ.

Questions buyers ask before ordering.

Which grades do you supply square bars in?

201, 304 and 316L, from traceable mill material.
Explore
201304316L

What size range do you cover?

From 5×5 mm to 40×40 mm in 10 standard sizes. Non-standard sizes are made to order.

What are square bars used for?

Frameworks, supports, shafts, metal furniture and precision-engineered parts.

Which finishes are available?

Brushed or mirror polish on request.

What documents come with the order?

Every order ships with MTCs and quality reports.

Can you cut and drill the bars?

Yes. We cut, drill and round edges to your drawing.

Why project buyers work with Sanmei Metal

Material-driven, engineering-supported, execution-ready. One supplier from the mill to your site.

An integrated fabrication network in Foshan.

Material, surface processing and fabrication lines within reach of each other, coordinated as one order.
stainless steel sheet mirror brushing
Material line
stainless steel coil
Material line
stainless steel coil
Material line
hairline finishing process on stainless steel
Surface processing line
mirror polishing process on stainless steel sheet
Surface processing line
PVD coating process on stainless steel sheet
Surface processing line
steel structure fabricating
Fabrication line
steel structure fabrication hub
Fabrication line
steel structure fabrication hub
Fabrication line

Coating that lasts longer, matches and stays clean.

Three things we measure on our own production, each compared with typical market product.
PVD coating

Thicker PVD coating

0.30µm
Typical market coil: 0.21–0.27 µm. Ours is up to 28% thicker.
In plain terms: the coating takes longer to wear through, so the color lasts longer.
See the coating test
Color control

Consistent color

ΔE ≤ 2
Most suppliers give no color tolerance at all. Every coil of ours is held at ΔE 2 or less.
In plain terms: reorder next year or mix batches on one wall, and the panels still match.
See the color data
Anti-fingerprint

Fingerprint-resistant

215solvent rubs
The standard asks for 100 solvent rubs. Typical market anti-fingerprint coating failed at 70; ours lasted 215.
In plain terms: fingerprints wipe off, and the coating holds up to daily cleaning.
See the AF test
Tested to GB/T and ISO standards, with MTR and SGS reports on request.
See all our quality control.

Documents you can check.

Every order ships with a Mill Test Report traced to its heat number, and SGS testing is available on request. These are real documents from our mill partners and our project work.
Certifications shown belong to Sanmei and its fabrication partners. Click a document to see it full size.

Tell us about your project.

Send a drawing, a reference photo or just the grade and size. Our team replies with material advice, finish options, samples and a quote.
What helps us answer fastest
Drawing, sketch or reference photo
Grade and thickness, if you know them
Finish or color you have in mind
Quantity and delivery location
Tell us about your project →
Samples and small batches are welcome.

Related Products

Contact us

Creating Center, Shunde District, Foshan City, Guangdong Province, 528315, China
+8615015653566 / 0757-87668353
Paige Deng
marketing@sanmeimetal.com

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    TEL: +8615015653566 / 0757-87668353
    Email: marketing@sanmeimetal.com

    Headquarters:
    Creating Center, No.142, Yuhe Road, Lecong Town, Shunde District, Foshan City, Guangdong Province, China. 528315

    Factory: Liyuan Logistics City, Chencun Town, Shunde District, Foshan City, Guangdong Province, China. 528313

    Get a quote

    List every size you need, each with its own finish and quantity. Small batches are welcome. We'll reply by email shortly. You can also write to us at marketing@sanmeimetal.com.

    Sizes, finishes and quantities one line per item

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