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High-performance alloys like Duplex Steel S31803 and S32205 are renowned for their superior mechanical qualities and corrosion resistance. These alloys belong to the family of stainless steels known as duplex, which blends the qualities of ferritic and austenitic stainless steels. The original grade is S31803, and the revised version, S32205, has stronger and more corrosion resistance. The dual-phase microstructure of both grades, with roughly equal amounts of austenite and ferrite, is what distinguishes them. Together with excellent resistance to stress corrosion cracking, pitting, and crevice corrosion, its special structure also bestows high strength and strong ductility.
When compared to typical austenitic stainless steels, S31803 and S32205 both have strong tensile and yield strengths in terms of mechanical qualities. For example, S31803's tensile strength usually surpasses 80 ksi (550 MPa), but S32205 performs marginally better, especially in corrosive situations.
It's crucial to adhere to certain welding protocols and recommendations when working with duplex steels in order to prevent problems like chromium carbide precipitation or mechanical property degradation. To keep the alloy's integrity, proper heat treatment and welding parameter control are crucial. Duplex Steel S31803 and S32205, with their exceptional blend of strength, hardness, and corrosion resistance, are materials that are invaluable in difficult applications.
Specification : ASTM A276 / ASME SA276
Range : Dia 6mm to 300mm (100mm to 1200mm long)
Length : Max 12000 mm
Diameter : 5.5 – 400 mm
A Wide Range of ASTM A276 S31803 / S32205 Duplex Steel Wire at Best Price.
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STANDARD | WERKSTOFF NR. | UNS |
Duplex 2205 | 1.4462 | S31803 / S32205 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 - 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
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