DUPLEX STAINLESS STEEL
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255
Alloy 255 is a 25% chromium super duplex stainless steel. Alloy 255 contains a copper addition which provides it with greater resistance to sulfuric acid than other super duplex grades. Because of its duplex structure alloy 255 also offers excellent strength characteristics and resistance to chloride ion stress corrosion cracking.
Features
Forms
Applications
Specifications
Common Trade Names
Literature
Features
- High strength
- Chloride stress corrosion cracking resistance
- Lower coefficient of thermal expansion than austenitic stainlesses
- Good sulfuric acid resistance
Forms
255 Pipe, 255 Plate, 255 Round Bar, 255 Sheet
Applications
- Pulp and paper
- Chemical process
- Flue-gas desulfurization
- Copper smelting
- Mixers and pumps
Specifications
ASME SA: 240, 479, 789, 789 Section IV Code Case 2603, 790
ASTM A: 240, 479, 480, 789, 790
Common Trade Names
Ferralium® 255, Alloy 255
Literature
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