To keep your hardware with an attractive appearance over a longer period of time you just need to carefully follow the following precautions:
– Before installation the hardware should be stored in a dry place.
– The Hardware should be installed only at the final stage of construction, after the treatment/varnishing of all the timber. Once applied, the hardware must remain protected until the conclusion of the construction process.
– After the installation of the hardware, no acid substances, or solvents, for cleaning the floors can be used because the vaporization can cause damage to the hardware.
– For cleaning, use only cloths or nylon sponges with water, neutral products or products suitable for this purpose. Don’t use chemicals that aren’t indicated for the cleaning of stainless steel products because this can result to the appearance of stains or rust points on the surface of the products (examples: heavy acids or heavy alkaline products HCl – acid cloridric, H2SO4 – sulfuric acid, HN03 – acid nitric, NaOH – hydroxide of sodium, KOH – hydroxide of potassium).
– When cleaning with a neutral product or a product indicated for this purpose, you should always remove it afterwards with clean water.
– Finish cleaning always with a passage of a dry and soft cloth. Do not use, under any circumstances, steel sponges, glass wool or non-specific abrasive mesh for Stainless Steel, besides being able to scratch the surface they can also deposit residue of steel that will result with the creation of oxidation points.
– To preserve the original shine of the products, note the direction in which the Stainless Steel has been polished and clean it with a plastic sponge, preferentially nylon, always in the same direction. Valid only for the satin finished products.
– In the case of Stainless Steel AISI 304, the finish may suffer corrosion due to atmospheric conditions (oxidation), this can be eliminated by cleaning the item with a cleaning product specific for Stainless Steel.
– If there’s a need to carry out a thorough cleaning to the items, use only specific products for this purpose and please take notice previously of the characteristics and chemical compositions of these cleaning products.
In case you need further clarification on this matter and/or what products to use, please contact us by the means that you consider most convenient.
Steel is considered stainless when it does not corrode when in contact with humid air or water.
Stainless steel is mainly composed of iron. By adding chromium, nickel and other elements in certain percentages, its molecular structure is altered and it is given different characteristics, making it resist to corrosion. Adding a minimum of 11% chromium is enough to guarantee that steel will be resistant to corrosion. This resistance is designated as “Passiveness”. The elements in stainless steel react easily with the environment (especially with the humidity that condenses on the cold metal) and one in particular, the chromium, helps to form a thin and adherent film that protects the metal from corrosive attacks. This cover is designated as “passive film”. Due to phenomena of chemical reactions, the passive film is strengthened with time. This thin, invisible and stable film is very adherent to the metal. Its resistance is strengthened as more chromium is added to the metal.
We can categorize steel considered stainless in three groups: Ferritic, austenitic and martensitic. In our activity we are only interest in the following groups:
– Martensitic: the chromium level in this steel is of 11% to 18%. Other elements might be added in smaller quantities (like nickel), but never more than 2,5%. As mentioned before, by adding chrome the surface of the steel is protected with the passive film, improving the resistance to oxidation. The steel maintains its magnetic feature.
– Austenitic: In this steel, the chromium level can vary from 17% to 26% and with the addition of nickel (7% to 22%), the steel loses its magnetic feature. Corrosion resistance increases considerably. An addition of 3% of molybdenum improves the resistance against acids and adverse environmental conditions.
The SAE (Society of Automotive Engineers) together with the AISI (American Iron and Steel Institute), developed a table to classify stainless steel in its standard way according to their composition:
Brass is an alloy composed of copper and zinc, this last component being of 3% to 45%. Occasionally, other elements may be added in smaller quantities (like aluminum, tin, or arsenic) to enhance the alloy.
In exception to what is stated below, ATZ™ guarantees, to the final purchaser, that all products will be free of mechanical defects, as long as the he follows all the installation indications supplied with the product, and as long as the product does not suffer any physical or mechanical alterations before or during its installation.
Unless otherwise to what is mentioned below, ATZ™ guarantees the purchaser that it´s product will be free of defects. The ATZ™ product has a 5 year warranty, under normal use. The finish of stainless steel products (AISI 304 or 316) can be attacked, leading to the eventual appearance of “red or brown spots”, if often subjected to chemical, sea air, acid rain or other agents of external pollution. These spots shall be avoided by being careful during its application and with a regular Maintenance and Cleaning. These finish changes are not considered manufacturing defects and are not covered by this warranty, they merely reflect normal product wear.
Exclusions From Warranty
ATZ™ has produced products in accordance to the ATZ™ Standard of Excellence. All products are manufactured from the finest quality raw materials. However, these products are liable to recesses and imperfections due to specific processes, malleability of the materials and the elements of human intervention when crafting the product. Although our internal safeguards protect us from shipping products of unacceptable quality, defect or imperfection of the surface may occur at the highest quality standard in a given product. ATZ™ is committed to producing each item to the highest guidelines and quality of human ability and excellence. However, all final decisions of Quality remain exclusively in the discretion of ATZ™.
1- Any ATZ™ product, which has been damaged as a result of installation contrary to any of ATZ™’s written installation instructions, is not covered by this warranty.
2- Any ATZ™ product, which has been modified by any non-ATZ™ component, is not covered by this Warranty.
3- Any ATZ™ product, having a defect caused by neglect, misuse, abuse or unreasonable or extraordinary use or incorrect maintenance is not covered by this Warranty, includes use in a commercial application.
4- Any ATZ™ product, having a defect due to the use of paint, solvents or other chemicals is not covered by this Warranty.
5- Any ATZ™ product that is used in combination with other not manufactured by ATZ™ is not covered by this Warranty.
6- This Warranty is not transferable. Therefore, no transferee is covered by this Warranty.
If a repair claim is made under this Warranty,after an investigation by ATZ™ proves it to be valid, ATZ™ will, at its sole option, either repair or replace the defective product.
Upon such repair or replacement, the original remaining Warranty period will continue and be applicable to the repaired or replaced product. If an ATZ™ product covered by this Warranty has been discontinued at the time of the repair or replacement or if ATZ™ determines, in its sole discretion, that such a repair or replacement is inappropriate, ATZ™ reserves the right to refund the original purchase price of the mentioned product. Except ifmentioned in the warranty, ATZ ™ will not be RESPONSIBLE FOR THE WORK OF THIRD PARTIES RELATED TO REPAIR OR REPLACEMENT OF AN ATZ ™ PRODUCT OR FOR LOSS OF, DAMAGE TO, ANY MATERIAL WHICH IS NOT SOLD BY ATZ™.
Any product believed to be defective as covered by this warranty may not be returned without prior written authorization from ATZ™ or ATZ™´s or its Authorized Reseller or Retailer. All complaints must be made within a maximum period of two (2) months from the discovery of the alleged defect (s). Each claim must be in writing, briefly describing the defect, be accompanied by proof of purchase. The buyer must provide ATZ ™ with the name of the shop that provided the product and the company that installed it.If required, the buyer must provide proof of defects) and allow ATZ ™ to inspect the product or its representatives. If after investigation, ATZ™ determines that the claim is valid, the repair will be performed by or on the behalf of ATZ™ in accordance with the above heading, “REPAIRS”.
Limitation of Liabilities
Except as expressly provided in the warranty:
(a) ATZ ™ DOES NOT WARRANT AND DISCLAIM ALL WARRANTIES, REPRESENTATIONS AND WARRANTIES (WHETHER EXPRESS, IMPLIED OR STATUTORY), INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR SUITABLE FOR A PARTICULAR PURPOSE.
(b) ATZ ™ SHALL NOT BE LIABLE OR RESPONSIBLE FOR WORK OR OTHER COSTS RELATED TO INSTALLATION, REPAIR OR REPLACEMENT OR FOR LOSS OR OTHER DAMAGE TO ANY MATERIAL THAT IS NOT SOLD BY ATZ ™. THIS SHALL, IN NO EVENT, BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES CAUSED BY THE PURCHASER.