Shanxi Zhongcheng Metal Co., Ltd.
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal |
| Supply Ability | 10000tons |
| Delivery Time | 15-25days |
| Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA |
| Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available |
| Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg |
| Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons |
| Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 |
| Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA |
View Detail Information
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Product Specification
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal | Supply Ability | 10000tons |
| Delivery Time | 15-25days | Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA | Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available | Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg | Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons | Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 | Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA | ||
| High Light | Weldable Stainless Steel Square Tube ，Stainless Steel Square Tube Brushed ，Polished Stainless Steel Square Tubing | ||
The Stainless Steel Welded Square Tubing is manufactured from high-quality austenitic stainless steel coils, formed into a square shape, and longitudinally welded using advanced TIG (GTAW) or ERW processes. This product offers an excellent combination of corrosion resistance, structural strength, and aesthetic appeal. Its square profile provides superior load-bearing characteristics, ease of fabrication, and clean, modern appearance, making it the preferred choice for structural, architectural, and industrial applications.
| Parameter | Details |
|---|---|
| Standards | ASTM A554, A269, A312; EN 10219-2; JIS G3446 |
| Available Grades | 304, 304L, 316, 316L, 201 |
| Square Sizes | 10 mm * 10 mm – 300 mm * 300 mm (3/8″ * 3/8″ – 12″ * 12″) |
| Wall Thickness | 0.5 mm – 6.0 mm (20 ga – 1/4″) |
| Length | Fixed lengths 3m / 6m, or custom lengths upon request |
| Welding Process | TIG (GTAW), Laser, or ERW |
| Heat Treatment | Annealed after welding (typical) |
| Surface Finish | Mill finish, pickled, polished (180-600 grit), brushed, or mirror |
| Corner Radius | Sharp square or radiused (as required) |
| End Finish | Plain ends, capped, or punched |
| Grade | C ≤ | Si ≤ | Mn ≤ | P ≤ | S ≤ | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 304 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 |
| 304L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 |
| 316 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 |
| 316L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 |
Composition per ASTM A554. Molybdenum grades (316/316L) available for enhanced corrosion resistance.
| Grade | Tensile Strength (MPa) min | Yield Strength (MPa) min | Elongation (%) min | Hardness (HRB) max |
|---|---|---|---|---|
| 304 | 515 | 205 | 35 | 92 |
| 304L | 485 | 170 | 35 | 92 |
| 316 | 515 | 205 | 35 | 95 |
| 316L | 485 | 170 | 35 | 95 |
Tested in accordance with ASTM E8 / E8M.
High Strength-to-Weight Ratio – Square geometry provides excellent structural rigidity
Superior Corrosion Resistance – Suitable for indoor, outdoor, and marine environments
Aesthetic Appearance – Clean lines and polished finishes for architectural use
Excellent Weldability – Can be easily welded to other stainless steel components
Good Formability – Bendable and machinable for custom fabrications
Low Maintenance – Easy to clean, resistant to staining and rust
Hygienic Surface – Non-porous surface ideal for food and pharmaceutical applications
Fire Resistant – Non-combustible, maintains integrity at high temperatures
| Parameter | Tolerance |
|---|---|
| Outside dimensions | ±0.4 mm for sizes ≤ 50 mm; ±0.8% for larger sizes |
| Wall thickness | ±10% |
| Length | +0 / -3 mm for fixed lengths |
| Twist | 1 mm + 0.5 mm per meter |
| Concave / Convex | 0.8% of width |
| Squareness of corners | 90° ± 1° |
| Finish | Description | Application |
|---|---|---|
| Mill Finish | As-welded, oxide scale present | Industrial / hidden structures |
| Pickled | Acid-cleaned, removes scale | Chemical / marine environments |
| Brushed / Satin | 180-320 grit directional grain | Architectural railings, furniture |
| Polished | 400-600 grit, semi-reflective | Food equipment, decorative trim |
| Mirror | 800+ grit, highly reflective | Elevator interiors, luxury architecture |
Building frameworks and supports
Bridge railings and crash barriers
Mezzanine floors and platforms
Scaffolding and guardrails
Handrails, balustrades, and staircases
Window and door frames
Curtain wall supports
Decorative screens and partitions
Conveyor frames and machine guards
Equipment stands and workbenches
Storage racks and shelving
Cart and trolley frames
Truck and trailer body frames
Bus handrails and grab bars
Marine railings (316 grade)
Railway station structures
Sanitary equipment frames
Workstation legs and supports
Cleanroom structures
| Process | Recommendation |
|---|---|
| Cutting | Band saw, abrasive wheel, or plasma cutter |
| Welding | TIG (GTAW) recommended; use matching filler rod (ER308/ER316) |
| Bending | Use mandrel bender for tight radii; annealed condition preferred |
| Drilling | Cobalt or carbide drill bits; use cutting fluid |
| Surface Protection | Apply peelable film or tape during fabrication to prevent scratches |
For inquiries, technical datasheets, or custom sizes, please contact our sales team.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
20000000-50000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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