00Cr25Ni7Mo4WCuN (S32760)
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00Cr25Ni7Mo4WCuN (S32760) is a super duplex stainless steel, also known as F55 or Zeron 100. It features high strength and excellent corrosion resistance, and is widely used in the petroleum, chemical, and other strongly corrosive environments.
Product name：
High-temperature alloy
Material：
nitronic60
Warehouse：
Tianjin
Surface treatment：
Pickled/bright/black etc.
Keyword：
00Cr25Ni7Mo4WCuN (S32760)
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Details description
Basic Information
Corresponding grade: National standard is 022Cr25Ni7Mo4WCuN, S27603; American standard is S32760, F55; German standard is 1.4501; European standard is X2CrNiMoWN25-7-4.
Chemical Composition: Carbon (C) ≤0.03%, Silicon (Si) ≤1.0%, Manganese (Mn) ≤1.0%, Phosphorus (P) ≤0.03%, Sulfur (S) ≤0.01%, Chromium (Cr) 24.00～26.00%, Nickel (Ni) 6.00～8.00%, Molybdenum (Mo) 3.00～4.00%, Nitrogen (N) 0.20～0.30%, Copper (Cu) 0.50～1.00%, Tungsten (W) 0.50～1.00%.
Physical Properties: Density approximately 8.0g/cm³, Melting point 1400-1450℃, Specific heat 460J/kg・K, Resistivity 90.0μΩ・cm, Thermal conductivity 12.8W/m・K.
Mechanical Properties: Tensile strength ≥750MPa, Yield strength ≥550MPa, Elongation ≥25%, Reduction of area ≥45%, Hardness approximately 270HB.
Performance Characteristics
Strong corrosion resistance: High chromium, molybdenum, and nitrogen content give it strong resistance to pitting and crevice corrosion. It has good resistance to chloride corrosion. The added copper element makes it resistant to non-oxidizing acid corrosion and also alkali corrosion.
High strength: The duplex structure gives it high strength and good toughness, superior to general austenitic stainless steel and ferritic stainless steel.
Good thermal stability: It has high thermal conductivity and low thermal expansion coefficient, and can maintain good stability at high or low temperatures.
Heat treatment process: Usually requires solution treatment, heating at 1050-1100℃ followed by rapid cooling to obtain good comprehensive mechanical properties. Aging treatment or quenching treatment can also be performed as needed. Aging treatment can be carried out between 400-600℃ to improve dimensional stability and corrosion resistance; quenching treatment is generally around 950℃, which can improve material hardness and strength.
Application Fields
Commonly used in petroleum and natural gas industry equipment, such as offshore platforms and underwater equipment; chemical processing industry vessels and pipelines; desalination plants, high-pressure RO plants, and submarine pipelines; it can also be used to manufacture pumps, valves, fasteners, and other high-strength, corrosion-resistant mechanical parts.
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