High Strength Super Duplex Seamless Pipe 1.4501 S32760 F55 Good Ductility
S32760 / F55 Super Duplex Seamless Pipe 1.4501 Duplex Pren ≥40.0
UNS S32760 25% chromium duplex stainless steel
National standards:
ASTM / ASME: A959-UNS S32760
DIN / EN 1.4501 X2CrNiMoWN25-7-4
General attributes:
UNS S32760 / F55 is a super duplex stainless steel. Contains 0.75% tungsten and copper, 25% chromium (austenite / ferrite) steel. The alloy's PREn (pitting equivalent) number is> 40.0, which ensures high pitting resistance. UNS S32760 / F55 has high mechanical strength, good ductility, and corrosion resistance to the marine environment at both atmospheric and sub-zero temperatures. Good resistance to abrasion, corrosion and cavitation and can also be used in the working environment of acid media.
Mainly used in oil and gas and offshore applications, typically in pressure vessels, choke valves, Christmas trees, flanges and piping systems.
Chemical composition of S32760 / F55 Super Duplex Seamless Pipe:
Grade: S32760 | Standard: UNS | W: 0.5-1.0 | Others: Cr + 3.3Mo + 16N≥40 | |
C: ≤0.03 | Si: ≤1.0 | Mn: ≤1.0 | P: ≤0.03 | S: ≤0.01 |
Cr: 24-26 | Ni: 6.0-8.0 | Mo: 3.0-4.0 | N: 0.2-0.3 | Co: 0.5-1.0 |
Mechanical properties Tensile strength: σb≥750Mpa Elongation: δ≥25%
Material description: The main chemical components Cr, Ni, Mo, N, etc. have a certain degree of improvement over 2205, 2304, 2101. It has better performance in terms of oxidation resistance, acid corrosion resistance, seawater corrosion resistance, chloride ion corrosion, etc. It also has good strength.
Typical working conditions :30% dilute sulfuric acid, below 60 ℃, annual corrosion rate <0.1mm
Matching Welding Material:E2594
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