Round, Square, and Slot Tubes. Engineered for Safety & Aesthetics.
Safety Meets Style.
Architectural railings define the look of a building and ensure the safety of its occupants. Vertex Tubes manufactures structural-grade stainless steel tubing specifically for handrails, guardrails, and glass balustrades.
Whether for a coastal balcony requiring Marine Grade 316L or a commercial staircase using 304 Satin Finish, our tubes offer strict dimensional control for a seamless fit with standard elbows, flanges, and glass clips. We ensure the “Perfect Click” fit between the tube and the connector.
Safety railings cannot afford to rust or fail.
Grade Guarantee: We strictly use authentic TISCO/POSCO raw materials. No “fake 304” with low nickel content.
Application Guide: We recommend 304 for indoor/inland projects and 316L for outdoor/coastal projects (proven by our 96-hour Salt Spray Test).
The nightmare of every installer is a tube that won’t fit into the elbow connector.
Roundness Control: We control the ovality (out-of-roundness) strictly. If you order a 50.8mm tube, it fits perfectly into standard 50.8mm joiners without hammering or gaps.
Slot Tubes: For glass railings, our slot dimensions are precise (e.g., 15x15mm slot) to hold the glass gasket firmly.
In long hallway runs, inconsistent grain looks unprofessional.
Satin Consistency: Our automated polishing lines ensure the Grit (180#/240#/320#) is uniform from the first tube to the last.
Invisible Seam: For round tubes, the weld seam is leveled and polished to blend in, appearing almost seamless.
| Inspection Item | Vertex Factory Standard |
|---|---|
| Ovality (Roundness) | < 0.2mm deviation (Ensures connectors fit snugly). |
| Salt Spray Test | > 48h (304) / > 96h (316L) (No red rust allowed). |
| Surface Roughness (Ra) | Ra < 0.4μm (For Mirror), Consistent Grain for Satin. |
| Straightness | < 1.0mm / meter (Crucial for long handrail runs). |
| Weld Strength | Passed Flattening Test (Weld does not crack under stress). |
Durable handrails for high-traffic areas.
Slot tubes for frameless glass views.
High-strength barriers for malls and airports.
316L Mirror tubes resistant to chlorine.
A: 304 is suitable for indoor use or outdoor areas far from the sea. 316L contains Molybdenum, which provides superior resistance to salt and chlorides, making it essential for coastal projects (within 10km of the sea) or swimming pool areas.
A: Yes. We strictly control the OD (Outer Diameter) tolerance according to ASTM A554. For example, our 50.8mm tube is produced to fit standard 2-inch fittings perfectly.
A: A Slot Tube has a U-shaped channel running along its length. It is designed to sit on top of a glass balustrade, protecting the glass edge and providing a handrail, eliminating the need for vertical posts.
Send us your BOQ (Bill of Quantities). We offer project-based pricing.
