2205 Duplex Stainless Steel Round Bar
Certification:ASTM, GB, EN, DIN, JIS
Shape:Round
Technique:Hot/Cold Rolled
Surface Treatment：Polished
Dimensions:5-400mm
Tolerance:0/+1.0mm(Turned) -0/+5.0mm(Black)
Transport Package:in Bundles or Wooden Box
What is 2205 Duplex Stainless Steel Round Bar ?
2205 duplex stainless steel round bar (UNS S32205/S31803) is a special alloy material with high strength and excellent corrosion resistance. Due to its unique austenite-ferrite duplex structure (the two phases account for about 45-55% each), it performs excellently in harsh environments such as chemical, marine, and energy. It is an ideal choice to replace traditional austenitic stainless steel (such as 304, 316L).
2205 Stainless Cold Finish Round Bar
2205 Stainless Steel Round Rods Advantages
The 2205 duplex stainless steel round bars supplied by Gnee strictly follow the ASTM A276 and EN 10216-5 standards, using 22Cr-5Ni-3Mo-0.15N to form a 45-55% austenite + ferrite duplex structure, combining high strength with excellent corrosion resistance. The yield strength is 2.7 times that of 316L stainless steel. Under the same load, the wall thickness can be reduced by 30%, reducing the structural weight; the impact toughness retention rate at -196°C is ≥80%, meeting the stringent requirements of LNG cryogenic equipment.
How much more expensive is the price of 2205 duplex stainless steel bar than ordinary stainless steel?
The price of 2205 duplex stainless steel bar is about 2~3 times that of 304 stainless steel, depending on the specifications, surface treatment and purchase volume, mainly due to the high content of alloy elements (nickel, molybdenum, nitrogen), which leads to higher costs.
Why Choose GNEE
Contact Gnee now to get the 2205 Duplex Steel Round Bar Technical White Paper, free flaw detection services and personalized solutions, and experience the excellent performance of special alloy materials!
Specifications of Stainless Steel 2205 Round Bar
Diameter range: hot-rolled rods 10-300mm; cold-drawn rods 3-100mm; ground rods 1-150mm.
Length: conventional 1-6 meters, support cut-to-length (accuracy ±1mm), up to 12 meters can be customized.
Delivery state: solution annealed state, customizable cold-drawn strengthened state (strength increased by 15%)
Chemical Composition of Duplex Steel S32205 Rods
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| 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 |
Mechanical Properties of Duplex S32205 Stainless Steel Cold Drawn Bars
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
2205 Stainless Steel Bar Stock
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