F55 duplex stainless steel material properties

F55 duplex stainless steel material properties

 

F55

Raw material model: F55 dual phase steel

US model: S32760

German model: 1.4501

F55 (S32760, 1.4501) very two-phase stainless steel brief description:

F55 (S32760, 1.4501) is a high-alloy super duplex stainless steel, mainly used in various strong corrosive environments. F55 dual-phase steel has strong strength and corrosion resistance and is mainly used in chemical processing, petrochemical equipment and deep-sea equipment. It has strong resistance to fluoride corrosion, high heat transfer and low linear expansion coefficient. The high chromium, molybdenum and nitrogen content makes it highly resistant to pitting, crack corrosion and other corrosion. F55 (S32760, 1.4501) dual-phase steel has excellent comprehensive properties that are better than general dual-phase steels, such as 2205, S31803, etc.

F55 (S32760, 1.4501) dual-phase steel can withstand various strong oxidants and citric acid. At the same time, its high copper content makes it extremely resistant to non-oxidizing acid etching. F55 is also resistant to strong acid leaching. Corrosion, but F55 (S32760, 1.4501) dual-phase steel should not be used when the long-term operating temperature is above 300°C, because above this temperature, the ductility of the material will be significantly reduced.



F55 chemical composition:

Carbon C: ≤0.03

Silicon Si: ≤1.0

Manganese Mn: ≤1.0

Phosphorus P: ≤0.03

Sulfur S: ≤0.01

Chromium Cr: 24-26

Nickel Ni: 6.0-8.0

Molybdenum Mo: 3.0-4.0

Nitrogen N: 0.2-0.3

Cobalt co: 0.5-1.0

Tungsten W: 0.5-1.0

Others: Cr+3.3Mo+16N≥40



F55 (S32760, 1.4501) super duplex stainless steel physical properties:
1. F55 (S32760, 1.4501) dual-phase steel density: 8.0g/cm3,
2. F55 (S32760, 1.4501) dual-phase steel melting point: 1400-1450 ℃,
3. Specific heat of F55 (S32760, 1.4501) dual-phase steel (J/kg･K): 460,
4. F55 (S32760, 1.4501) dual-phase steel resistivity (μΩ･cm): 90.0,
5. F55 (S32760, 1.4501) dual-phase steel thermal conductivity (W/m･K): 12.8,


F55 (S32760, 1.4501) super duplex stainless steel mechanical properties:
1. F55 (S32760, 1.4501) dual-phase steel mechanical properties: tensile strength: σb≥750Mpa,
2. F55 (S32760, 1.4501) dual-phase steel yield strength σb ≥ 550Mpa:
3. F55 (S32760, 1.4501) dual-phase steel elongation: δ≥45%,
4. F55 (S32760, 1.4501) dual-phase steel hardness: 270 (HB)


F55 (S32760, 1.4501) super duplex stainless steel material properties:
1. F55 (S32760, 1.4501) duplex steel has reliable corrosion resistance (pitting corrosion resistance coefficient (PREN≥40)*,
2. F55 (S32760, 1.4501) dual-phase steel has excellent resistance to chloride ion pitting corrosion and crevice corrosion.
3. F55 (S32760, 1.4501) dual-phase steel has excellent sulfuric acid resistance.
4. F55 (S32760, 1.4501) dual-phase steel has excellent stress corrosion cracking resistance in media environments containing chloride ions and acidic (such as hydrogen sulfide).
5. F55 (S32760, 1.4501) dual-phase steel is resistant to erosion corrosion and corrosion fatigue.
6. F55 (S32760, 1.4501) dual-phase steel has excellent mechanical properties and good weldability.


Main applications of F55 (S32760, 1.4501) super duplex stainless steel:
Main applications of F55 (S32760, 1.4501) super duplex steel: neutral chloride environment, oil refining industry, petrochemical and chemical industry, transportation pipelines for chemical industry, oil and natural gas industry, pulp and paper industry, fertilizer industry, urea industry, Phosphate fertilizer industry, seawater environment, energy and environmental protection industry, light industry and food industry, food and pharmaceutical industry equipment, high-strength structural parts, submarine pipelines, hood desulfurization, osmotic desalination and desalination equipment, sulfuric acid plants, marine engineering fasteners, etc. .