Selection of Stainless Steel for Building External Application By yaang.com

Stainless steel is selected for architectural applications, as with most other applications, for their corrosion resistance. This is usually the prime consideration.

Environmental factors such as temperature and humidity need to be taken into account, but the location of the proposed site is the initial consideration. The Nickel Institute's 'Stainless Steel in Architecture, Building and Construction Guidelines for Corrosion Prevention' publication categorizes sites as either: Rural,Urban,Industrial,Marine

Methods for Stainless Steel Grade Sorting By yaang.com

The conclusive methods for determining the grade of a sample of metal, believed to be a stainless steel is by a chemicalanalysis method. Normally spectrographic methods are used. These quantitative methods, provided they are properly calibrated using samples of known composition, give accurate figures for the important elements (chromium, nickel, molybdenum) in the sample.

Mechanical Polished Brushed and Buffed Stainless Steel By yaang.com

Mechanical finishes for stainless steel are covered as finish codes G, J, K and P in EN 10088-2. Terms grinding, polishing, brushing and buffing even when used along with these codes are not sufficient to accurately define the finish. There can often be confusion about what these terms mean.
To precisely specify a finish also requires agreed samples. Contamination rust staining on mechanically polished stainless steel surfaces is often the result of using contaminated finishing media, often via hand tools which have previously been used on carbon steel.

Care and maintenance of stainless steel By yaang.com

Stainless steel is selected for applications where their inherent corrosion resistance, strength and aesthetic appeal are required. However, dependent on the service conditions, stainless steel will stain and discolour due to surface deposits and so cannot be assumed to be completely maintenance-free. In order to achieve maximum corrosion resistance and aesthetic appeal, the surface of the stainless steel must be kept clean. Provided the grade of stainless steel and the surface finish are correctly selected, and cleaning schedules carried out on a regular basis, good performance and long service life will result.

Stainless Steels Sorting and Identification Tests By yaang.com

Stainless Steels Sorting and identification tests are non-destructive, inexpensive and rapid procedures, usually carried out on different grades of stainless steels. Sorting of product procedures is particularly useful when Stainless Steel bars of Stainless Steel grade 303 and 304 have been accidentally stored together, or when Stainless Steel grade 304 and Stainless Steel 316 sheet offcuts are mixed.

Although these tests are extremely useful, they have certain limitations too. It is difficult to sort one heat from another of the same grade using these tests. For instance, type stainless steel 304 cannot be readily sort from stainless steel 321, stainless steel 316 from stainless steel 316L or stainless steel 304 from stainless steel 304L.

How To Select A Stainless Steel Grade By yaang.com

Stainless steel is engineering material with good corrosion-resistance, strength and fabrication characteristics. They can readily meet a wide range of design criteria, including load, service life and low maintenance. Selecting the proper stainless steel grade involves weighing four qualities in the following order of importance:

1. Corrosion or Heat Resistance, the primary reason for specifying stainless. The specifier needs to know the nature of the environment and the degree of corrosion or heat resistance required.
2. Mechanical Properties, particularly strength at room, elevated or low temperature. The combination of corrosion resistance and strength is the basis for selection.