In 1912, the Krupp company in Essen took out the first patents for a new material that was initially known as “Nirosta” or “V2a steel”. It soon made its mark in a wide variety of applications including container construction for the chemicals industry, structures used in the building of cars and aircraft as well as building materials and household appliances.

The generic term “stainless steel” now embraces over 100 separate rust and acid-resistant steels. We use chromium-nickel steel bearing Material No. 1.4301 under German standard DIN 17 440 to make our builders hardware. It contains approx. 18 % chromium and 8 % nickel, an alloy that has been tried and tested in the builders trade.

Properties of stainless steel

Stainless steel is an excellent choice for door and window hardware, because its surface is extremely corrosion-resistant, hardly shows knock and scratch marks however roughly treated, is virtually non-wearing even if in constant use, and - primarily by dint of the chrome and nickel additives in the alloy – is very easy to look after. An invisible passive layer forms on its surface that is even claimed to kill bacteria.

Areas of application

We recommend door and window hardware in stainless steel for all heavily frequented doors, especially on ships, at sports venues and in public buildings, office buildings, hospitals, motorway service stations or parks - wherever people convene in large numbers and there is a need for easy-care hardware with a long service life.

Care

Builders hardware in stainless steel does not really need any looking after at all. Dirt marks can be removed with a damp cloth. Should signs of rust appear on outdoor hardware or that used in chlorinated swimming baths after a while, this is what is known as flash rust, which is external in origin as opposed to emanating from within the material and can be removed with vigorous rubbing.

Notes on selection

It is necessary when selecting and ordering door and window hardware and the attendant accessories to take note of any general explanations and technical information provided in this Manual so as to avoid misunderstandings, follow-up queries from our end and the time lost as a result.

Finishes

The stock Stainless Steel Satin Matt version is particularly robust. Stainless Steel Mirror-Polish is an environmentally friendly alternative to chrome-plated finishes. Stainless Steel Sand-Blasted Matt lends hardware a very haptic matt character that gradually acquires a sheen through continuous use. The Mirror-Polish and Sand-Blasted versions are produced to order.

FSB 6204 Stainless Steel Satin matt

FSB 6205 Stainless Steel Mirror-Polish

FSB 6206 Stainless Steel Sand-Blasted Matt