Duplex UNS S32205 Tubes has excellent resistance to localized corrosion including inter - granular, pitting and crevice corrosion. Duplex Steel UNS S31803 Seamless Tubes are apt replacements to austenitic grades, especially in premature failure environments and marine environments. Duplex UNS S32205 Welded Tubes has good weldability in thick plates, and may be successfully machined by conventional methods. Exceptional contemplation is desirable to recompense for a greater factor of thermal development in Duplex Steel UNS S31803 EFW Tubes to evade distortion and warping. Duplex Steel UNS S32205 ERW Tubes has high strength, good resistance to sulfide stress corrosion, and high resistance to pitting and crevice to corrosion. The corrosion resistance of Duplex Steel UNS S31803 Round Tubeis greater than that for the most commonly used grades of stainless steels. Duplex Steel UNS S32205 Square Tubes is readily weldable using many of the standard electric arc welding processes.
Duplex Steel UNS S31803 Rectangular Tubes is hot worked in the temperature range of 954°C - 1149°C (1750°F - 2100°F). The combination of chromium content, along with molybdenum and nitrogen content convey the good resistance of Duplex Steel UNS S32205 Electropolish Tubes to chloride pitting and crevice corrosion. Duplex Steel 2205 Tubeshas high mechanical strength, and high resistance to erosion corrosion and corrosion fatigue.
- Certification: ISO 9001, ISO 14001 & OHSAS 18001
UNS S31803 / S32205 Duplex Tubes Chemical Composition
S31803 / S32205 |
C |
N |
P |
Si |
Mn |
Mo |
Fe |
Cr |
S |
Ni |
1.0 |
0.03 |
0.02 |
2.0 |
3.0 – 3.5 |
22.0 – 23.0 |
0.03 |
4.5 – 6.5 |
0.14 – 0.2 |
Bal |
Duplex Steel S31803 / S32205 Tube Mechanical Properties
S31803 / S32205 |
Density |
Melting Point |
Yield Strength (0.2%Offset) |
Tensile Strength |
Elongation |
7.8 g/cm3 |
1350 °C (2460 °F) |
Psi – 80000 , MPa – 550 |
Psi – 116000 , MPa – 800 |
15 % |
Equivalent Grades for S31803 / S32205 Duplex Steel Tube
STANDARD |
UNS |
WERKSTOFF NR. |
Duplex S31803 |
S31803 |
1.4462 |
Duplex S32205 |
S32205 |
1.4462 |
NOTE : OTHER SIZES AND GRADES ARE AVAILABLE UPON REQUEST
DUPLEX STEEL S31803 / S32205 SEAMLESS TUBE SPECIFICATIONS
UNS S31803 / S32205 Welded Tubes are available in different grades and standards. Some of the standard features these are made available in include
Specifications : ASTM A790 / ASME SA790, ASTM A789 / ASME SA A789
Dimensions : ASTM, ASME and API
Size : 1/2"NB TO 12 "NB IN
Seamless Tubes & Tubes Sizes : 1/2” NB - 8” NB
Welded Tubes & Tubes Sizes : 6” NB - 24” NB
Outer Diameter : 6.0-630mm
Thickness : 0.5-45mm
Schedule : SCH20, SCH30, SCH40, STD, SCH80
Type : Seamless / ERW / Welded / Fabricated / CDW
Form : Round Tubes/Tubes, Square Tubes/Tubes, Rectangular Tube/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
UNS 32205 Welded Tubes
Duplex Steel UNS S31803 Tube