Expert knowledge

Stainless Steel – Cleaning Surface Contaminants: Type of Contamination Cleaning Agent Grease, oils Soapy water, cleaning creams, alcohol-based agents, acetone. Limescale deposits (hard water) Diluted vinegar, citric acid. Coffee stains Baking soda. Tea stains Washing soda (sodium carbonate), cleaning creams. Adhesive residues Alcohol- or acetone-based solvents. Fingerprints Soapy water, glass cleaners, mild detergents, damp microfiber cloth. Graffiti and paints PaintRead more

Methods of Joining Stainless Steels: Welding High strength No possibility of disassembly Bolted Connections Easy installation on site, allows joining of different materials, can be disassembled May cause crevice corrosion Brazing Soft and hard soldering, watertight joints (e.g. roofing) Mechanical Press Fitting Expanding, crimping (press-fitting) Durable pipe connections, leak-tight for liquids and gases Requires specialized tools Adhesive Bonding Maintains surfaceRead more

Site and Design Assessment System Points Part 1: Environment (choose the appropriate value) Rural areas. 0 No or very low pollution. Polluted areas (light industry, vehicle exhausts). 0 Low. 2 Moderate. 3 High. Industrial pollution (aggressive gases, iron oxides, chemicals). 3 Low to moderate. 4 High. * – for areas of high corrosivity, consult a corrosion expert. Points Part 2:Read more

What makes stainless steel rust? 1. Insufficient knowledge about stainless steels lack of experience in processing and handling using methods suitable for carbon steels, which are not appropriate for stainless steels surface contamination with iron or carbon steel particles improper storage and transportation 2. Maintenance during service lack of regular surface cleaning 3. Incorrect grade selection failure to consider allRead more

STEELS STRUCTURE EUROPEAN STANDARD EN 10088 EQUIVALENT STEEL GRADES PN POLAND AISI USA GOST RUSSIA DIN GERMANY CORROSION-RESISTANT (ACID-RESISTANT AND STAINLESS) FERRITIC 1.4000 OH13 403/410S 0HCh13 X6Cr13 1.4003 X2CrNi12 1.4512 409 X2CrTi12 1.4016 H17 430 12Ch17 X6Cr17 1.4510 OH17T 430 Ti/439 08h17T X3CrTi17 / X6CrTi17 1.4521 444 X2CrMoTi18-2 1.4509 X2CrMoTiNb18 MARTENSITIC 1.4006 1H13 410 12Ch13 / 15Ch13L X12Cr13 / X10Cr13Read more

Environmental corrosivity Ferritic steels Austenitic steels Duplex steels Recommendations C1 very low 1.4016, 1.4521 1.4301, 1.4307 1.4162 With proper surface maintenance, steels without Mo addition can be used. C2 low 1.4016, 1.4521 1.4301, 1.4307 1.4162 With proper surface maintenance, steels without Mo addition can be used. C3 medium 1.4521 1.4301, 1.4404 1.4162, 1.4362 For humid environments, use steels containing Mo.Read more

Environmental corrosivity Outdoor areas Indoor areas C1 very low deserts, arctic regions, rural areas heated, low-humidity environments, e.g. offices, schools C2 low areas with low pollution, rural zones, small towns (SO₂ < 5 g/m³) unheated spaces with variable temperature and humidity, e.g. warehouses, apartments, sports halls C3 medium areas with low pollution, urban zones, coastal regions with low chloride depositionRead more

Main grades used in Architecture, Building and Construction (ABC): EN 10088-4 (sheet, plate, strip) Grade ASTM UNS C Wt% Cr Wt% Ni Wt% Mo Wt% Other Wt% Typical applications 1.4003 S40977 0.02 11.5 0.5 - - Heated and unheated interiors 1.4016 430 0.04 16.5 - - - Decorative interior claddings 1.4509 1.4510 S43932 439 0.02 0.02 18 17 - -Read more

CLASSIFICATION OF CORROSION-RESISTANT STEELS ACCORDING TO DIFFERENT CRITERIA: SERVICE PROPERTIES stainless heat-resistant creep-resistant CHEMICAL COMPOSITION - Ni up to and above 2.5% - Mo addition - Additions of Ti, Nb, Cu Fe + Cr Fe + Cr-Ni Fe + Cr-Ni-Mo Fe + Cr-Mn-Ni CRYSTAL STRUCTURE austenitic ferritic austenitic-ferritic (duplex) martensitic precipitation-hardened EXAMPLES OF APPLICATIONS FOR CORROSION-RESISTANT STEELS consumer and medicalRead more