Welded Half Sphere End Cap-KK-Ø21 x 1.5 mm - AISI 304 Raw Surface

What Is a Welded Half Sphere End Cap?

A welded half sphere end cap is a stainless steel component designed to close and finish the top ends of pipes, posts, and railing columns. Its hemispherical form provides a clean, durable, and professional termination, especially in welded railing and structural applications.

The products in this category are supplied with a raw (unfinished) surface, allowing users to apply their preferred final finish according to project requirements.

What Does Raw Finish Mean?

A raw finish indicates that the product:

• Has not been polished or brushed
• Is fully ready for welding and surface treatment
• Is ideal for industrial and custom fabrication

Users can apply:

• Mirror polishing
• Satin / brushed finishing
• Custom paint coatings

This flexibility makes raw finish caps ideal for manufacturers, workshops, and custom architectural projects.

Technical Dimensions & Pipe Compatibility

According to the provided technical data, the product is compatible with the following pipe diameters:

Ø16 · Ø19 · Ø21 · Ø25 · Ø32 · Ø38 · Ø42 · Ø48 · Ø51 · Ø60 · Ø70 · Ø76 · Ø90 · Ø120 · Ø150

Material thickness varies between 1.2 mm and 2 mm, ensuring strength and stability across all sizes.

Material Options

• AISI 304 Stainless Steel – standard indoor and outdoor use
• AISI 316 Stainless Steel – enhanced corrosion resistance for demanding environments

Areas of Use

• Stair railing systems
• Balcony and terrace railings
• Industrial pipe constructions
• Architectural metal works
• Custom metal furniture

Advantages in Welded Applications

• Acts as a single piece with the pipe
• Reduces vibration and loosening risk
• High impact resistance
• Long service life

The half sphere shape provides both aesthetic appeal and improved safety by fully covering open pipe ends.

Value as a Special Offer Product

Although listed under special offer products, this item:

• Maintains full material integrity
• Preserves dimensional accuracy
• Offers excellent weldability

It delivers a strong price-to-performance advantage for professional users.

Tags : welded half sphere end cap, stainless steel pipe cap, raw finish railing cap, welded pipe end caps, stainless steel half dome cap, aisi 304 pipe cap, aisi 316 pipe cap, metal railing accessories, industrial pipe caps