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Alloy 2507 is a super duplex stainless steel containing 25% chromium, 4% molybdenum and 7% nickel. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity and low coefficient of thermal expansion. Commonly used in chemical process, petrochemical and seawater equipment.
The duplex structure of 2507 provides excellent resistance to chloride stress corrosion cracking (SCC). Because of its higher alloy content, 2507 is superior to 2205 in corrosion resistance and strength.Duplex 2205 is a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most widely used duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades.
2507(S31750) duplex stainless steel plate/coil Application
2507(S31750) duplex stainless steel plate/coil is widely used in Oil & Gas industry, Seawater applications, Desalination plants, Geothermal wells or Refineries and Petrochemical plants.
2507 Super Duplex Stainless Steel coils are primarily used in applications requiring high strength and exceptional corrosion resistance, particularly in harsh environments like those involving saltwater or corrosive chemicals. Common applications include desalination equipment, chemical processing pressure vessels and piping, offshore oil and gas platforms, and flue gas scrubbing systems.
2507(S31750) duplex stainless steel plate/coil Chemical Composition and Mechanical Property
Grade | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | Other Elements |
2507(S31750) | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 5.0 | 0.24 - 0.32 | 0.50 | --- |
Grade | Tensile Strength, min | Yield Strength, min | Elongation in 2 in. or 50 mm, min, % | Hardness, maxC | Cold Bend°D | |||
ksi | MPa | ksi | MPa | Brinell | Rockwell B | |||
2507(S31750) | 116 | 795 | 80 | 550 | 15 | 310 | 32 | not required |
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