Stainless steel 2507 pre-fabrication of spools manufacturer supplier. Contact us to get free quote and sample!
S32750 super duplex stainless steel pre-fabrication of spools with flange, with its unique duplex microstructure, combines high strength, super corrosion resistance (especially resistance to chloride corrosion and stress corrosion cracking), good weldability and processability. HT PIPE is a Stainless steel 2507 pre-fabrication of spools supplier with 15+ export experience. Contact us for more information and quotes for free!
stianless steel spools with flange 2507 strength
Its yield strength (≥550 MPa) and tensile strength (≥800 MPa) are usually more than twice that of 304/316L stainless steel, and even significantly higher than 2205 duplex steel. This means that under the same design pressure, the wall thickness can be reduced, the weight can be reduced, and the cost can be reduced (especially in high-pressure systems).
ss2507 pipe with flange corrosion resistance
- Comprehensive corrosion resistance: The extremely high PREN value (pitting resistance equivalent, usually ≥40, PREN = %Cr + 3.3x%Mo + 16x%N) gives it top-level resistance to pitting and crevice corrosion, especially in chloride ion environments (seawater, salt spray, chemical media).
- Stress corrosion cracking resistance: It has strong resistance to stress corrosion cracking in chloride and sulfide environments, which is the fatal weakness of austenitic stainless steel.
- Excellent uniform corrosion resistance: It performs well in a wide range of acidic (such as dilute sulfuric acid, organic acid) and alkaline environments.
super duplex s32750 Fatigue and wear resistance
Good fatigue resistance and better wear resistance than austenitic stainless steel extend the service life of the pipeline system in dynamic loads or particle-containing media.
uns s32750 pipe Thermal expansion and thermal conductivity
The thermal expansion coefficient is lower than that of austenitic stainless steel, closer to carbon steel, with better thermal conductivity, and more advantages in thermal cycle applications.
2507 steel pipe with flange Flange and pipeline connection
- Welding: The most reliable and most commonly used connection method (butt welding, socket welding).
- Welding material selection: Strictly match the parent material (such as ER2594 welding wire, E2594 welding rod) to ensure that the weld metal has a duplex structure and performance equivalent to the parent material.
- Welding process: strictly control heat input and interlayer temperature (usually ≤100°C), use narrow weld technology, usually require back shielding gas (argon or nitrogen-argon mixture) to prevent root oxidation and ensure back forming and corrosion resistance. Generally, no heat treatment is required after welding, but it is necessary to ensure that the cooling speed is fast enough to maintain the ideal dual phase ratio.
