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STAINLESS STEEL PIPES. WHAT IS STAINLESS STEEL TYPICAL PROPERTIES Stainless steels are alloys containing iron, relatively low carbon, a minimum 10.5%

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Presentation on theme: "STAINLESS STEEL PIPES. WHAT IS STAINLESS STEEL TYPICAL PROPERTIES Stainless steels are alloys containing iron, relatively low carbon, a minimum 10.5%"— Presentation transcript:

1 STAINLESS STEEL PIPES

2 WHAT IS STAINLESS STEEL TYPICAL PROPERTIES Stainless steels are alloys containing iron, relatively low carbon, a minimum 10.5% chromium and up to 30% nickel. Stainless steels pipe are grouped according to the structure which forms when they are cooled from high temperatures. stainless steel piping in a variety of grades including 304, 316, 317, 321, 309, and 346 as well as some 400 series grades. The type that is used in the marine environment is 316.

3 TYPE OF STAINLESS STEEL (PIPES) There are Four basic types of stainless steel: Duplex : high resistance to stress corrosion cracking. Austenitic: High ductility, good corrosion resistance, suitable for high and low temperatures. Ferritic: less expensive, can stand moderate high temperature. Martensitic: this type of stainless steel is used where high mechanical strength combined with corrosion resistance is required(e.g. marine pipes).

4 TYPE OF CORROSION Pitting and crevice corrosion to low grade stainless steel.

5 MARINE STAINLESS STEEL PIPE GRADE Where marine and aggressive environments are encountered, stainless grade 316/316L is commonly used in the construction of water supply services and buildings. Because 316/316L stainless resists rusting, it makes an excellent choice for Marine applications and aggressive environment such as sea-front buildings.

6 Stainless steel pipe joint to PVC pipe Type of Joints PTFE thread-sealing tape Welding

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