Home / Duplex Steel Products / Duplex Steel S31803/S32205 Pipes
Eckhardt Steel & Alloys is a known manufacturer and exporter of Duplex Steel UNS S32205 / Steel UNS S31803 Pipes, which resists sulfide stress corrosion and chloride environments. UNS S32205 Pipes has excellent general corrosion resistance and is superior to Stainless Steel 316 in most environments. Duplex Steel UNS S32205 Seamless Pipes are tough to SCC than customary austenitic alloys. Steel UNS S32205 Welded Pipes is resistant to chloride stress corrosion cracking (SCC) at temperatures of 150 Degree C. Duplex UNS S31803 Seamless Pipes has higher strength which is around twice that of Type 304 austenitic stainless steel. Steel UNS S31803 Welded Pipes should not generally be welded without filler metal as this may result in excessive ferrite. Duplex UNS S32205 EFW Pipes is not subject to inter-granular corrosion in the as-welded condition. Duplex Steel UNS S31803 ERW Pipes have higher heat conductivity and low thermal expansion compared to austenitic alloys.
Duplex UNS S31803 Round Pipes are magnetic, which is a feature that in fact can be utilized to effortlessly distinguish them from reciprocated austenitic alloys. Steel UNS S32205 Square Pipes in the annealed condition is readily machinable by all conventional methods. Increasing temperatures also increase the susceptibility of Duplex UNS S31803 Rectangular Pipes to stress corrosion cracking. Duplex Steel UNS S32205 Electropolish Pipes is also subject to embrittlement between 370°C - 540°C when exposed over a longer period.
UNS S31803 / S32205 Duplex Pipes 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 Pipe 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 Pipe
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex S31803 | S31803 | 1.4462 |
| Duplex S32205 | S32205 | 1.4462 |
NOTE : OTHER SIZES AND GRADES ARE AVAILABLE UPON REQUEST
UNS S31803 / S32205 Welded Pipes 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 Pipes & Tubes Sizes : 1/2” NB - 8” NB
Welded Pipes & Tubes Sizes : 6” NB - 24” NB
Outer Diameter : 6.0-630mm
Thickness : 0.5-45mm
Schedule : SCH20, SCH30, SCh20, STD, SCH80
Type : Seamless / ERW / Welded / Fabricated / CDW
Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U”
Shape, Pan Cake Coils, Hydraulic Tubes
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
MOST SEARCHED PRODUCTS
Duplex Steel Pipes : ASTM A790 Heavily Cold Worked Austenitic UNS S32205 Pipes | Duplex Steel UNS S31803 Seamless Pipe | UNS S32205 Welded Pipes | UNS S31803 Pipes Weight | Duplex Steel UNS S32205 Square Pipes | Duplex Steel UNS S31803 Pipe Chemical Composition | Duplex Steel ERW Pipes | ASTM A790 UNS S32205 Pipes | Duplex Steel UNS S31803 Pipes | UNS S32205 Pipe Exporter | UNS S31803 Hexagonal Pipe | UNS S32205 Pipes Price | UNS S31803 Pipes Sizes | Sizes of UNS S32205/S31803 Pipes | UNS S32205/S31803 Rectangular Pipes.
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