Stainless Steel Tubes & Pipes
Round, square, and rectangular decorative stainless steel tubes for architectural railings, furniture, structural framing, and interior design applications. Factory direct from Guangdong, China.
Three Tube Profiles
All profiles available in 201, 304, and 316L grades with multiple surface finishes
Round Tube (Pipe)
Available from Ø6mm to Ø219mm outer diameter. Ideal for handrails, balustrades, curtain rods, and structural columns. The most versatile profile for architectural applications.
Square Tube
Available from 10×10mm to 150×150mm. Perfect for furniture frames, screen partitions, door frames, and decorative structural elements requiring clean geometric lines.
Rectangular Tube
Available from 20×10mm to 200×100mm. Widely used for window frames, ceiling grid systems, shelving supports, and architectural feature elements.
Round Tube — Standard Sizes
Outer diameter range: Ø6mm – Ø219mm • Standard length: 6000mm • Wall thickness: 0.4mm – 3.0mm (varies by OD)
Small Diameter Round Tube (Ø6 – Ø60mm)
Commonly used for handrails, balustrades, curtain poles, furniture legs, and decorative trims.
| OD (mm) | Common Wall Thickness (mm) | Typical Applications |
|---|---|---|
| Ø6 | 0.4 / 0.5 / 0.6 | Thin decorative trim, wire covers |
| Ø8 | 0.4 / 0.5 / 0.6 / 0.8 | Decorative rods, light fixtures |
| Ø9.5 | 0.5 / 0.6 / 0.8 | Curtain rods, display racks |
| Ø12.7 | 0.5 / 0.6 / 0.8 / 1.0 | Towel rails, small handrails |
| Ø16 | 0.6 / 0.8 / 1.0 / 1.2 | Furniture frames, display stands |
| Ø17 / Ø18 / Ø19 | 0.6 / 0.8 / 1.0 / 1.2 | Handrails, balustrade infill |
| Ø20 / Ø22 | 0.8 / 1.0 / 1.2 / 1.5 | Handrails, furniture, shelving |
| Ø23 / Ø25 | 0.8 / 1.0 / 1.2 / 1.5 | Stair handrails, grab bars |
| Ø29 / Ø32 | 1.0 / 1.2 / 1.5 / 2.0 | Main handrails, structural supports |
| Ø35 / Ø38 | 1.0 / 1.2 / 1.5 / 2.0 | Balustrade posts, column wraps |
| Ø40 / Ø42 | 1.2 / 1.5 / 2.0 | Structural columns, gate frames |
| Ø48 / Ø50 / Ø51 | 1.2 / 1.5 / 2.0 / 2.5 | Heavy-duty handrails, posts |
| Ø60 | 1.5 / 2.0 / 2.5 / 3.0 | Structural columns, large posts |
Large Diameter Round Tube (Ø63 – Ø219mm)
Used for architectural columns, large structural elements, and industrial applications.
| OD (mm) | Common Wall Thickness (mm) | Typical Applications |
|---|---|---|
| Ø63 | 1.5 / 2.0 / 2.5 / 3.0 | Architectural columns, large posts |
| Ø76 | 2.0 / 2.5 / 3.0 | Structural columns, bollards |
| Ø89 | 2.0 / 2.5 / 3.0 | Heavy structural columns |
| Ø102 / Ø114 | 2.0 / 2.5 / 3.0 | Large architectural columns |
| Ø133 / Ø159 | 2.5 / 3.0 | Feature columns, structural supports |
| Ø168 / Ø219 | 3.0+ | Major structural elements, industrial use |
Square & Rectangular Tube — Standard Sizes
Standard length: 6000mm • Wall thickness: 0.4mm – 3.0mm • Custom sizes available on request
Square Tube (S)
Equal-sided square profiles. Ideal for furniture, screen partitions, and structural framing.
| Size (mm × mm) | Common Wall Thickness (mm) | Typical Applications |
|---|---|---|
| 10×10 / 12×12 / 15×15 | 0.4 / 0.5 / 0.6 | Decorative trim, small frames |
| 16×16 / 17×17 / 18×18 | 0.5 / 0.6 / 0.8 | Furniture frames, display racks |
| 19×19 / 20×20 / 22×22 | 0.6 / 0.8 / 1.0 | Furniture, shelving, light screens |
| 23×23 / 24×24 / 25×25 | 0.8 / 1.0 / 1.2 | Handrail posts, furniture legs |
| 28×28 / 30×30 | 1.0 / 1.2 / 1.5 | Screen partitions, door frames |
| 36×36 / 38×38 | 1.0 / 1.2 / 1.5 / 2.0 | Structural frames, gate posts |
| 40×40 / 50×50 | 1.2 / 1.5 / 2.0 | Heavy-duty frames, balustrade posts |
| 80×80 / 100×100 | 1.5 / 2.0 / 2.5 / 3.0 | Structural columns, large frames |
| 120×120 / 150×150 | 2.0 / 2.5 / 3.0 | Major structural elements |
Rectangular Tube (RE)
Unequal-sided rectangular profiles. Widely used for window frames, ceiling systems, and architectural features.
| Size (mm × mm) | Common Wall Thickness (mm) | Typical Applications |
|---|---|---|
| 20×10 / 23×11 / 24×12 | 0.4 / 0.5 / 0.6 | Decorative trim, small frames |
| 25×13 / 28×13 / 30×15 | 0.6 / 0.8 / 1.0 | Window frames, light structural |
| 28×27 / 30×20 / 33×22 | 0.8 / 1.0 / 1.2 | Furniture, shelving, display racks |
| 36×23 / 38×24 / 50×10 | 0.8 / 1.0 / 1.2 | Ceiling grid, decorative strips |
| 50×25 / 50×30 / 60×30 | 1.0 / 1.2 / 1.5 | Door frames, structural channels |
| 60×40 / 75×25 / 75×45 | 1.2 / 1.5 / 2.0 | Structural framing, gate frames |
| 80×40 / 95×45 / 100×50 | 1.5 / 2.0 / 2.5 | Heavy structural, curtain wall |
| 120×60 / 150×50 / 150×100 | 2.0 / 2.5 / 3.0 | Large structural elements |
| 200×100 | 2.5 / 3.0 | Major structural applications |
Dimensional Tolerances
Per enterprise standard Q/GDWJH1-2023 (Decorative Welded Stainless Steel Tube)
OD / Side Length Tolerance
| Surface Condition | OD or Side (mm) | Tolerance |
|---|---|---|
| Polished (SP / SB) | ≤ 25 | ±0.20 mm |
| >25 – <40 | ±0.22 mm | |
| ≥40 – <50 | ±0.25 mm | |
| ≥50 – <60 | ±0.28 mm | |
| ≥60 – <90 | ±0.30 mm | |
| ≥90 – <100 | ±0.35 mm | |
| ≥100 – <200 | ±0.50%D | |
| ≥200 | ±0.70%D | |
| Unpolished / Sandblasted (SNB / SS) | ≤ 25 | ±0.20 mm |
| >25 – <50 | ±0.30 mm | |
| >50 | ±0.7%D |
Wall Thickness Tolerance
| Wall Thickness t (mm) | Tolerance |
|---|---|
| 0.4 < t ≤ 0.8 | ±0.10 mm |
| 0.8 < t ≤ 1.00 | ±0.12 mm |
| 1.00 < t ≤ 1.25 | ±0.13 mm |
| 1.25 < t ≤ 1.60 | ±0.14 mm |
| 1.60 < t ≤ 2.00 | ±0.16 mm |
| 2.00 < t ≤ 2.50 | ±0.18 mm |
| 2.50 < t ≤ 3.00 | ±0.20 mm |
| 3.00 < t ≤ 5.00 | ±8.0%t |
| 5.00 < t ≤ 12.00 | ±10.0%t |
Length tolerance: 0 – +10 mm • Standard length: 6000mm
Available Surface Finishes
All tube profiles can be supplied in the following surface treatments
Mirror / 8K Polish
Ultra-reflective mirror finish. Reflectivity ≥95%. Popular for luxury interiors and elevator applications.
Hairline / Brushed
Fine linear texture. Available in #180, #240, #320, #400 grit. Classic professional appearance.
PVD Color Coating
200+ colors including Gold, Rose Gold, Black Titanium, Bronze, Champagne. Hardness ≥1500HV.
Sandblasted (Matte)
Uniform matte surface with fine texture. Anti-fingerprint option available. Code: SS.
Material Grades & Mechanical Properties
Per enterprise standard Q/GDWJH1-2023 — all grades meet or exceed national standards
| Grade Code | Steel Grade | Yield Strength σ0.2 (MPa) | Tensile Strength σb (MPa) | Elongation δ5 (%) | Hardness (HB) |
|---|---|---|---|---|---|
| GDWJH01 | 12Cr13Mn11NiN (201) | ≥220 | ≥550 | ≥25 | ≤250 |
| GDWJH02 | 12Cr14Mn8NiN (201 variant) | ≥220 | ≥550 | ≥25 | ≤250 |
| GDWJH03 | 12Cr15Mn5Ni5 | ≥220 | ≥550 | ≥25 | ≤250 |
| GDWJH04 | 022Cr17Ni7 (304 variant) | ≥205 | ≥515 | ≥35 | ≤187 |
| GDWJH05 | 06Cr19Ni10 (304) | ≥205 | ≥515 | ≥35 | ≤187 |
| S31608 | 06Cr17Ni12Mo2 (316L) | ≥205 | ≥515 | ≥35 | ≤217 |
Request Tube Samples or a Custom Quote
Tell us your required size, grade, surface finish, and quantity. Our team will respond within 2 hours.