Choice of Metal Grade for Lighting Products

KOCH allows customers to choose between Standard, Premium and Luxury collections.

Luxury

Marine Grade 316-SS

Contains 16% Chromium, 10% Nickel, 2% Molybdenum

Especially suitable and best solution for outdoor use.
Rust will not occur on the surface.
Marine Grade is definitely recommended for use near Seaside with Salty air.

Surface can be damaged by Salt Air.

No warranty for damages due to Salt Air.

Premium

Stainless Steel 304

Contains 18% Chromium, 8% Nickel

Suitable for outdoor use.
When used in the open air, rust on the surface will occur in the long run / after some years.
Considering the price, it is a good solution.
The rust problem occurs faster when used near the sea with salty air.

Brass

Suitable for outdoor use.
Considering the price, it is a good solution.
When used near the sea with salt air, problems on surface and soldering many occur in long run / after some years.

Premium

Stainless Steel 304

Contains 18% Chromium, 8% Nickel

Suitable for outdoor use.
When used in the open air, rust on the surface will occur in the long run / after some years.
Considering the price, it is a good solution.
The rust problem occurs faster when used near the sea with salty air.

Brass

Suitable for outdoor use.
Considering the price, it is a good solution.
When used near the sea with salt air, problems on surface and soldering many occur in long run / after some years.

Standard

Stainless Steel 200 Series

Contains 16-18% Chromium, 0.5-4% Nickel

Is suitable for indoor use.
For outdoor use in rain, rust will occur.

Stainless Steel 200 Series is not recommended by the sea with salty air.
Neither indoors or outdoors.