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square tube joiner 90 Degree
Stainless Steel Square Tube Joiner 90 Degree Structure

Square Tube Joiner 90°

The Square Tube Joiner is a high-grade architectural component engineered to connect two sections of 50.8mm x 50.8mm square stainless steel tubing at a precise 90-degree angle. This tube connector is a critical element for creating structural corners and vertical-to-horizontal transitions in modern square handrail fitting systems. Specifically designed for 1.5mm wall thickness tubing, it allows for a seamless transition from a rake (angled) stair section to a level landing or balcony section.

Manufactured from premium AISI 304 or 316 stainless steel, this joiner provides exceptional structural integrity and a clean, weld-free professional appearance. Its internal fit design ensures a flush finish that complements modern architectural glass railing systems while offering high resistance to environmental factors.

Category

Part NO.
Fit for Tube

(mm)

A

(mm)

(mm)

Material

Surface

Place of Production

Square Line

ST0150
50.8 x 50.8 x 1.5
37.5 50.8

Stainless Steel 304 / 316

Satin or Mirror polished

Shandong, China

 

Tube Joiner Basic Info:

1. Manufacturing Process: Investment Casting + Precision Machining+Polishing
2. Application Scenario: Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, Supermarket, Park, Bathroom, Outdoor, Exterior, Entry, Hall, Staircase, Gym
3. Use Place: Bridge Railings / Handrails, Deck Railings / Handrails, Porch Railings / Handrails, Stair Railings / Handrails
4. Design Style: Contemporary, Modern, European, Craftsman
5. Certificate: ISO9001:2015
6. Engineering Solution Capability: Graphic Design, 3d Model Design, Total Solution For Projects
7. Certificates: Material Certificates, Dimension Inspection Certificate
8. Lead Time : 60days batch production after square tube joiner samples approved
9. Warranty Service: 1 Year
10. After-sales Service: Online Technical Support, Return And Replacement

 

FAQ:

Q1: What is the purpose of a Square Tube Joiner?
A: It is used to connect two square tubes at a 90-degree angle, allowing for directional changes in handrail systems, especially in stair and balcony applications.

Q2. What tube dimensions are compatible with this Square Tube Joiner?
A: This component is specifically engineered to fit square stainless steel tubing with dimensions of 50.8mm x 50.8mm and a wall thickness of 1.5mm.

Q3. Does the installation require on-site welding?
A: No. This square handrail fitting is designed for an efficient, weld-free installation. It requires the use of high-strength structural adhesive for secure bonding inside the tube ends, resulting in a perfectly flush and seamless transition.

Q4. Where is a 90-degree vertical joiner typically used?
A: It is primarily used in staircase systems where the handrail must turn vertically to transition from a sloped rake section to a horizontal balcony or landing area. It is also common in any architectural application requiring a sharp, precise right-angle turn.

Q5. What finishes are available for this tube connector?
A: To match your specific railing design, the joiner is available in two high-quality finishes:

Satin: A brushed, matte look that is highly durable and easy to maintain.
Mirror Polished: A reflective, chrome-like finish that provides a premium aesthetic and enhanced surface protection in exterior settings.

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