SAE 316L stainless steel
SAE 316L grade stainless steel, sometimes referred to as A4 stainless steel or marine grade stainless steel, is the second most common austenitic stainless steel after 304/A2 stainless steel. Its primary alloying constituents after iron, are chromium (between 16–18%), nickel (10–12%) and molybdenum (2–3%), with small (<1%) quantities of silicon, phosphorus & sulfur also present. The addition of molybdenum provides greater corrosion resistance than 304, with respect to localized corrosive attack by chlorides and to general corrosion by reducing acids, such as sulfuric acid.[1] 316L grade is the low carbon version of 316 stainless steel. When cold worked, 316 can produce high yield and tensile strengths similar to Duplex stainless grades.
It is commonly used in chemical and petrochemical industry, in food processing, pharmaceutical equipment, medical devices, in potable water,[2][3] wastewater treatment,[4] in marine applications[5] and architectural applications near the seashore or in urban areas.[6][7]
Gallery
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External Thread Galling.png
Pipe fitting of 316 steel (equivalent to A4 steel).
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Schmidt K5 fountain pen converter + 2.5 mm 316 Stainless Steel bearing ball.jpg
A fountain pen converter containing a 316 stainless ball of 2.5 mm diameter
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Orbital Welding 316L Stainless Steel.jpg
Two welded 316L steel pipes.
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Unpolished 316L steel.
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SCC of stainless steel UNS S31603.jpg
Stress corrosion cracking in 316L by synthetic seawater
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Hose barb pipe fitting in 316L
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Steeldive SD8205-1 Diving watch (edited, without background).jpg
Diving watch and bracelet in 316L
See also
References
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