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Stainless_Steel_Datasheet

Stainless_Steel_Datasheet

Stainless_Steel_Datasheet

Product catalog summary
Introduction to Stainless Steel: Stainless steel is a type of steel known for its enhanced corrosion resistance, primarily due to the addition of chromium (at least 11%, commonly around 18%). Other elements like nickel and molybdenum further enhance its properties. Key attributes include durability, hygiene, fire resistance, low weight, non-magnetic nature, aesthetic appeal, and excellent strength at high temperatures.
Stainless Steel Families: There are four main grades of stainless steel:
  • Austenitic Stainless Steel: Most widely used, includes grades 304 and 316. Ideal for industries like food processing and pharmaceuticals. 304 contains 18% chromium and 10% nickel, while 316 includes 17% chromium, 12% nickel, and 2.2% molybdenum for superior resistance.
  • Ferritic Stainless Steels: Less corrosion-resistant, used in less demanding applications. Contains 11.5% to 16.5% chromium and less than 0.5% nickel. Magnetic and not suitable for drainage products.
  • Martensitic Stainless Steels: High strength but poor corrosion resistance, used mainly in cutlery. Contains around 12.5% chromium and high carbon content.
  • Duplex Stainless Steels: Combines austenitic and ferritic structures, offering good corrosion resistance and high strength. Contains 22% chromium, 5.5% nickel, and 3% molybdenum. Magnetic and unsuitable for drainage applications.
Corrosion Resistance: Stainless steels resist corrosion due to a thin, invisible oxide film that forms in oxidizing environments. This film is self-healing, regenerating when exposed to oxygen. Proper grade selection is crucial, as even 316 grades can be vulnerable to certain chemicals.
Finishing Processes: A fine surface finish is crucial for corrosion resistance. Post-weld treatment is essential to restore corrosion protection, typically achieved through pickle passivation and electropolishing. Pickle passivation involves removing oxide films and impurities, while electropolishing enhances surface smoothness and bacterial resistance.
Material Resistance Chart: Provides indicative resistance data for various reagents at 20°C. Highlights the suitability of different stainless steel grades and other materials like EPDM and Viton for specific chemicals.
Contact Information: ACO Marine provides contact details for their offices in Germany and the Czech Republic for further inquiries and support.
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Catalog excerpts

Stainless_Steel_Datasheet-1

Stainless Steel Information

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Stainless_Steel_Datasheet-2

Stainless Steel Information Stainless Steel is the name given to a wide range of steels which have the characte- ristics of greatly enhanced corrosion resistance over conventional mild and alloy The enhanced corrosion resistance of stainless steel essentially comes from the addition of at least 11% chromium, however most stainless steels commonly contain around 18% chromium. Other significant alloying elements include nickel and for superior corrosion resistant properties, molybdenum. For ACO Marine applications, the principal properties of stainless steel may be ■ Durable and corrosion resistant...

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Stainless_Steel_Datasheet-3

Stainless steels must oxidise in order to form the passive, chromium-rich oxide film. Stainless steels have a very strong tendency to passivate and only a small amount of oxidising agents are needed for passivation - air and water are sufficient to passivate stainless steels and indeed, this oxide film is spontaneously regenerated when An important factor to note is that the passive film is self healing, so when the material is cut or machined or, should chemical or mechanical damage occur, the passive film will 'heal' or re-passivate in oxidising environments spontaneously - unlike a painted...

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Stainless_Steel_Datasheet-4

Material Resistance Chart The resistance information contained within this table is indicative only. All data is based on reactions noted at an ambient temperature of 20 °C. Higher tem- peratures will generally reduce the corrosion Please contact ACO if guarantees are required of specific material suitability. We shall arrange for tests to be undertaken with the reagent to establish the chemical Suitable. However, contact ACO

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Stainless_Steel_Datasheet-8

Czech Republic E-mail.: [email protected] Karl Dzluk E-mail: [email protected] © November 2007 ACO Marine. All reasonable care has been taken in compiling the information in this document. All recommendations and suggestions on the use of ACO products are made without guarantee since the conditions of use are beyond the control of the Company. It is the customer's responsibility to ensure that each product is fit for its intended purpose and that the actual conditions of use are suitable. This brochure and any advice is provided by ACO Marine free of charge and accordingly on terms that no...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.