Subsea Equipment Duplex Stainless Steel Pipe ASTM A790 UNS F53 / S32750
F53 / S32750 Super Duplex Stainless Steel Pipe 2507 Industrial Pipe 25%Cr Pren ≥40.0
2507 (UNS S32750) 25% chromium duplex stainless steel
National standards:
| ASTM / ASME: A240-UNS S32750 |
| EURONORM: 1.4410-X2 Cr Ni MoN 25.7.4 |
| AFNOR: Z3 CN 25.06 Az |
| DIN / EN 1.4410, ASME SA-240 |
General attributes:
S32750 Super Duplex stainless steel pipe has strong strength and corrosion resistance, and is mainly used in chemical processing, petrochemical and subsea equipment. It has strong resistance to chloride corrosion, higher thermal conductivity and lower coefficient of thermal expansion. Higher chromium, molybdenum and nitrogen content it has a high resistance to pitting, crevice corrosion and general corrosion.
Its impact strength is also very high. The 2507 alloy is not suitable for use at temperatures higher than 570 ° C. If it is exposed to such an environment for a long time, its toughness will decrease. Its chemical composition is shown below
Comparison of chemical composition
| Grade | C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr | Ni | Mo | Cu≤ | N |
| S32750(2507) | 0.03 | 1.2 | 0.8 | 0.02 | 0.035 | 24 / 26 | 6.0 / 8.0 | 3.0 / 5.0 | 0.5 | 0.24/0.32 |
| S31803(2205) | 0.03 | 2.0 | 1.0 | 0.02 | 0.03 | 21 / 23 | 4.5 / 6.5 | 2.5 / 3.5 | | 0.08 / 0.20 |
| S31500(3RE60) | 0.03 | 1.2 / 2.0 | 1.4 / 2.0 | 0.03 | 0.03 | 18 / 19 | 4.25 / 5.25 | 2.5 / 3.0 | | 0.05 / 0.10 |
Mechanical properties Tensile strength: σb≥730Mpa Elongation: δ≥15%
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
Delivery form:Sheet, strip, bar, pipe (welded and seamless pipe), wire, forging, light rod, flange, welding
SHANGHAI ABOOM METAL PRODUCT CO.,LTD
Address:ROOM 412,NO.452 CHEFENG ROAD,
SongjiangDistrict , Shanghai ,201601,P.R.China
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Subsea Equipment Duplex Stainless Steel Pipe ASTM A790 UNS F53 / S32750 Images
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