2205 duplex stainless steel
Common trade name: AL-6XN super austenitic stainless steel.
High molybdenum super austenite with excellent resistance to chloride pitting, crevice corrosion and stress corrosion cracking. Suitable for pulp mill bleaching plants, seawater heat exchangers and chemical processing equipment
2205 duplex stainless steel chemical composition
C≤0.030 Mn≤2.00 Si≤1.00 p≤0.030 S≤0.020 Cr 22.0~23.0 Ni 4.5~6.5 Mo3.0~3.5 N0.14~0.20 (austenite-ferrite type)
2205 duplex stainless steel performance supplement: main ingredients: 22Cr-5.3Ni-3.2Mo-0.16N;
National standards: NAS 329J3L, UNS S32205/S31803, DIN/EN 1.4462, ASTM A240, ASME SA-240;
2205 duplex stainless steel mechanical properties:
2205 duplex stainless steel tensile strength: σb≥640Mpa;.
2205 duplex stainless steel elongation: δ≥25%;
Typical working conditions of 2205 duplex stainless steel: 20% dilute sulfuric acid, below 60°C, annual corrosion rate <0.1mm; 2205 duplex stainless steel
Matching welding wire: ER2209.
Shanghai Moju 2205 product form:
Tubes, tubes, fittings, flanges, sheets, strips, plates, round bars, flat bars, fasteners, forgings, hexagons and wires
2205 technical indicators
Duplex stainless steels are designated UNS S31803, UNS S32205. It is listed in NACE MR-01-75 for use in oil and gas services.
UNS S31803, UNS S32205, Werkstoff 1.4462, EN 1.4462
ASTM: A 240, A 276, A 479, A 789, A 790, A 182 (Grade F51), A 923
ASME: SA-240, SA-479, SA-789, SA-790, SA-182 (Level 51), ASME Pgroup 10H.
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