ASTM A240/A240M--01 Duplex stainless steel 2205 alloy is composed of 21% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy duplex stainless steel. It has high strength, good impact toughness and good integral and local stress corrosion resistance. The yield strength of 2205 duplex stainless steel is twice that of austenitic stainless steel. This property allows designers to reduce weight when designing products, making this alloy more affordable than 316,317L. This alloy is particularly suitable for use in the -50°F/+600°F temperature range. Applications beyond this temperature range may also consider this alloy, but there are some limitations, especially when applied to welded structures.
1. Compared with 316L and 317L austenitic stainless steel,2205 alloy has better performance in corrosion resistance and crack corrosion, it has high corrosion resistance, compared with austenite, its thermal expansion coefficient is lower, higher thermal conductivity.
2. Compared with austenitic stainless steel, the compressive strength of duplex stainless steel 2205 alloy is twice that of austenitic stainless steel. Compared with 316L and 317L, the designer can reduce its weight. The 2205 alloy is particularly suitable for use in the -50°F/+600°F temperature range and even lower temperatures under tight restrictions (especially for welded structures).
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, Mo 3.0~ 3.5N 0.14~0.20(Austenitic ferrite type)
The yield strength at room temperature is 450MPa, the tensile strength is 620MPa, and the elongation is 25%.
2205 dual phase steel
Duplex stainless steel 2205 is composed of 21% chromium,2.5% molybdenum and 4.5% nickel-nitrogen alloy. It has high strength, good impact toughness and good integral and local stress corrosion resistance.
Technique | Forged/Hot Rolled/Cold Drawn/Peeled |
Category | 1.Round bar |
3. Flat bar | |
4. Hexagon bar | |
5. Channel bar | |
6. Threaded bar | |
7. Angle bar | |
Diameter± | H9 tolerance can reach the industry standard |
Standard | GB, AISI/JIS, SUS, UNS, DIN 17440 17220(BS970 Part4) |
Material | Stainless steel: |
1.with plastic cap to protect both ends
2.weaving bag wrapped outside the pipe
3.then pack into wooden case.
delivery detail:3or 5workdays since received the deposit of L/C draft.
Chemical Composition about stainless steel Round Bar
302 | ≤0.15 | ≤1.0 | ≤2.0 | ≤0.035 | ≤0.03 | 8.0-10.0 | 17.0-19.0 | - |
304 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 8.0-10.5 | 18.0-20.0 | - |
304L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.035 | ≤0.03 | 9.0-13.0 | 18.0-20.0 | - |
309S | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 12.0-15.0 | 22.0-24.0 | - |
310S | ≤0.08 | ≤1.5 | ≤2.0 | ≤0.035 | ≤0.03 | 19.0-22.0 | 24.0-26.0 | - |
316 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
316L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 12.0-15.0 | 16.0-18.0 | 2.0-3.0 |
321 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.035 | ≤0.03 | 9.0-13.0 | 17.0-19.0 | - |
630 | ≤0.07 | ≤1.0 | ≤1.0 | ≤0.035 | ≤0.03 | 3.0-5.0 | 15.5-17.5 | - |
631 | ≤0.09 | ≤1.0 | ≤1.0 | ≤0.030 | ≤0.035 | 6.50-7.75 | 16.0-18.0 | - |
904L | ≤2.0 | ≤0.045 | ≤1.0 | ≤0.035 | - | 23.0-28.0 | 19.0-23.0 | 4.0-5.0 |
2205 | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.030 | ≤0.02 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 |
2507 | ≤0.03 | ≤0.80 | ≤1.2 | ≤0.035 | ≤0.02 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 |
2520 | ≤0.08 | ≤1.5 | ≤2.0 | ≤0.045 | ≤0.03 | 0.19-0.22 | 0.24-0.26 | - |
410 | ≤0.15 | ≤1.0 | ≤1.0 | ≤0.035 | ≤0.03 | - | 11.5-13.5 | - |
430 | ≤0.12 | ≤0.75 | ≤1.0 | ≤0.040 | ≤0.03 | ≤0.60 | 16.0-18.0 | - |
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