4" Sch 120 Duplex 2205 Stainless Steel Pipe Duplex 2205 Pipe S31803 2205
4" Sch 120 Duplex Stainless Steel Seamless Pipe 22%Cr Duplex Pren ≥34.0 S31803 2205
2205 (UNS S31803) 22% chromium duplex stainless steel
Performance and comparison of 2205 duplex stainless steel seamless pipe:
2205 duplex steel pipe combines the most beneficial properties of ferrite and austenite, and has good resistance to chloride ion stress corrosion cracking. It is a duplex stainless steel composed of 21% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloy. Yield strength is twice that of austenitic stainless steel.
This feature allows designers to reduce weight when designing products, making this alloy more advantageous than 316,317L. Because the steel has high chromium and molybdenum content, it has excellent resistance to pitting and uniform corrosion. The dual-phase microstructure ensures that the steel has high resistance to stress corrosion cracking and high mechanical strength.
| | Chemical Composition
(％) | Mechanical properties | |
| Type | UWS | C≤ | Cr | Ni | Mo | Cu | N | Tensile strength ≥ ksi (Mpa) | Yield Strength ≥ ksi (Mpa) | Elongation |
| Grade | 2in or |
| | 50mm,≥ % |
| low alloy | S31500 | 0.03 | 18.0-19.0 | 4.50-5.25 | 2.5-3.0 | … | 0.05-0.10 | 92(630) | 64(440) | 30 |
| S32001 | 0.03 | 19.5-21.5 | 10-3.0 | ≤0.60 | ≤ 1.00 | 0.05-0.17 | 90(620) | 65(450) | 25 |
| S32003 | 0.03 | 19.5-22.5 | 3.0-4.0 | 1.5-2.0 | … | 0.14-0.20 | 90(620) | 65(450) | 25 |
| S32304 | 0.03 | 21.5-24.5 | 3.0-5.5 | 0.05-0.60 | 0.05-0.60 | 0.05-0.20 | 87(600) | 65(450) | 25 |
| Medium alloy | S31803 | 0.03 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | … | 0.08-0.20 | 90(620) | 58(400) | 25 |
| S32205 | 0.03 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | … | 0.14-0.20 | 95(655) | 65(450) | 25 |
| High alloy | S32550 | 0.04 | 24.0-27.0 | 4.5-6.5 | 2.9-3.9 | 15-2.5 | 0.10-0.25 | 110(760) | 70(485) | 15 |
| Super DSS | S32750 | 0.03 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | ≤0.5 | 0.24-0.32 | 116(800) | 80(550) | 15 |
| S32760 | 0.05 | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.5-10 | 0.20-0.30 | 109(750) | 80(550) | 25 |
Implementation standards:
ASTM A789 (ASME SA789)
ASTM A790 (ASME SA790)
ASTM A928 (ASME SA928)
Specifications of the Duplex Stainless Steel Seamless Pipe:
Outer diameter Φ6—630mm; wall thickness: 1-50mm, maximum length 18000mm
Special specifications are available upon negotiation.
Performance characteristics:
1. Excellent resistance to general corrosion and local corrosion, especially stress corrosion resistance, pitting corrosion resistance, crevice corrosion resistance, corrosion fatigue resistance and wear resistance etc.
2. Good solderability
3. Good comprehensive mechanical properties
4. Good resistance to intergranular corrosion
5. High cost performance and long service life
2205 duplex stainless steel pipe is mainly used in the following aspects:
Neutral chloride environment refining industry petrochemical and chemical industry chemical industry pipelines oil and gas industry pulp and paper industry chemical fertilizer industry urea industry phosphate fertilizer industry sea environment energy and environmental protection industry light industry And food industry Food and pharmaceutical industry equipment High-strength structural parts
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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4" Sch 120 Duplex 2205 Stainless Steel Pipe Duplex 2205 Pipe S31803 2205 Images
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