50x150mm Thick Wall Stainless Steel Rectangular Tube in 201 304 316 Grades for Construction and Fabrication

Large-format stainless steel rectangular tubing for frames, partitions, doors, railings, furniture and architectural fabrication—available in grades 201, 304 and 316 with wall thicknesses from 0.9mm to 4.0mm.

The 3:1 profile combines a wide 150mm face with a compact 50mm depth. It is suited to long visual lines, wide frames, posts, mounting faces and fabricated architectural assemblies. Select the grade, wall, finish and processing from the drawing, service environment and engineering requirements.

For a fast quotation: send the 50*150mm size confirmation, wall thickness, grade, finish, length, quantity, tolerance, fabrication drawing, packing requirement and destination port.

Order control: confirm outside dimensions, wall tolerance, corner radius, weld-bead condition, straightness, surface direction, mechanical requirements and inspection documents when these are critical.

Confirm wall thickness, surface direction, corner profile and acceptable weld-bead condition before production.

• 0.9 - 1.0mm Light decorative covers, interior frames and fabricated components where reduced weight is important.
• 2.0 - 3.0mm General frames, partitions, door structures and architectural assemblies requiring greater local rigidity.
• 3.5 - 4.0mm Heavier fabrication and components requiring more material for drilling, welding and joint preparation.

These are purchasing guidelines, not structural ratings. Safe thickness depends on span, load direction, supports, anchors, joints, welds and applicable design codes. Load-bearing use must be approved by the project engineer.

Purchase Instruction: Order by the drawing dimensions and tolerance. Do not substitute 2″*6″ without checking mating parts, brackets and fabrication drawings.

• Grade 201 Economical option for dry indoor decoration, furniture and frames with limited moisture or chloride exposure.
• Grade 304 General-purpose choice for architectural fabrication, railings, frames and typical indoor or outdoor environments.
• Grade 316 Preferred for coastal, humid or chloride-exposed environments where enhanced corrosion resistance is required.

Grade selection should consider location, atmosphere, cleaning chemicals, maintenance and expected service life—not price alone.

• 2B / BA Base or bright-annealed surfaces for fabrication, further polishing or applications without a directional decorative grain.
• No.4 / Brushed / Hairline Directional texture for architectural work. Specify grain direction and approve a reference sample.
• Mirror High-reflection decorative finish for premium interiors. Protective film and careful handling are recommended.
• Custom Finish Project-specific polishing or color treatment can be reviewed against the required quantity and approved sample.

• Frames & Door Structures Entrance frames, wide decorative frames, screens and fabricated architectural assemblies.
• Railings & Partitions Posts, frames and infill components when the completed system is engineered for the required load.
• Furniture & Shopfitting Tables, shelving, cabinets, display systems, counters and commercial fixtures.

• Cut to project length
• Drilling and laser cutting
• Bending feasibility review
• Welding and frame fabrication
• Polishing and end finishing

• Grade checked to order requirement
• External size and wall checks
• Length, straightness and quantity checks
• Surface and visible weld inspection
• Labels checked against packing list

Protective film or individual sleeves can be selected for polished tube to reduce handling damage during packing, transport and installation.

Bundles, protective board, woven wrapping, wooden cases or reinforced frames can be arranged according to tube weight and unloading method.

• 23+ Years of Manufacturing Experience Production and export experience for decorative stainless steel tube and customized metalwork.
• Large-Profile Fabrication Support Tube production can be coordinated with cutting, drilling, laser processing, welding and finishing.
• Order-Based Inspection Grade, dimensions, wall, length, surface, quantity and labels are checked against approved requirements.

Is 50*150mm the same as 2″*6″?
No. 50*150mm equals approximately 1.969″*5.906″, while exact 2″*6″ dimensions are 50.8*152.4mm. Order by the required drawing dimensions.

Does a 4mm wall make the tube automatically structural?
No. Wall thickness affects rigidity, weight and fabrication, but structural suitability also depends on material properties, span, loads, supports, anchors, joints, welds and design codes.

Which grade is suitable for outdoor use?
304 is commonly selected for general outdoor environments, while 316 should be considered for coastal, humid or chloride-exposed locations. The actual environment and maintenance must be evaluated.

Can the tube be cut, drilled, bent or welded?
Yes. Send a drawing so VVINSCO can review cutting, drilling, laser cutting, bending, welding, polishing and surface-protection requirements.

Can I use it for pressure or fluid service?
This page describes an ASTM A554-referenced fabrication and architectural tube. Do not specify it for pressure service unless the required pressure standard, design, testing and certification are separately reviewed and confirmed.

What information is required for a quotation?
State size, wall, grade, finish, length, quantity, tolerances, corner requirement, processing, inspection documents, packing and destination port.

We will review the producible wall, finish, fabrication, inspection and packing requirements before preparing the quotation.

1. Size
2. Wall
3. Grade
4. Finish
5. Length
6. Quantity
7. Processing
8. Destination