High Standard 2507 Duplex Stainless Steel Sheet Coil/Plate
Super duplex stainless steel 2507, designed for superior strength and corrosion resistance are required. Chromium alloy containing 25% of the 2507, 4% 7% of molybdenum and nickel. This kind of high molybdenum, chromium and nitrogen content leads to excellent resistance to chloridePitting and crevice corrosion, erosion, duplex structure make 2507 has excellent resistance to chloride stress corrosion cracking. Use should be limited in 2507 is lower than 600 F (316 C) applications." Prolonged high temperature exposure will lower toughness and corrosion resistance of alloy 2507. 2507 has excellent mechanical properties. Usually can use 2507 light measuring instrument of materials to get the same thicker nickel alloy design strength.
Features:
2507 dual-phase steel density: 8.03g/cm3
Melting point: 1300-1390 ℃
Magnetism: yes
Heat treatment: Keep the temperature between 1000-1052℃ for 1-2 hours, fast air cooling or water cooling.
Mechanical properties:
Tensile strength: σb≥795Mpa, yield strength σb≥550Mpa: elongation: δ≥15%, hardness ≤310 (HB)
Corrosion resistance and main use environment:
The high chromium and molybdenum content of 2507 duplex steel makes it have strong resistance to overall corrosion against organic acids such as formic acid and acetic acid. 2507 dual-phase steel also has strong corrosion resistance to inorganic acids, especially those containing chlorides. Compared with 904L, 2507 duplex steel has stronger corrosion resistance to diluted sulfuric acid mixed with chloride ions. 904L is an austenitic alloy specially designed to resist corrosion by pure sulfuric acid. 316L can not be used in hydrochloric acid environment, it may suffer local corrosion or overall corrosion. 2507 duplex steel is used in diluted hydrochloric acid environment and has strong resistance to pitting corrosion and crevice corrosion.
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