Duplex stainless steel 2205 alloy is a compound stainless steel composed of 22% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy.
It has high strength, good impact toughness and good overall and local stress corrosion resistance.
2205 Stainless steel Bars Price in China ,Manufacturer of 2205 Stainless Steel Bars
The yield strength of 2205 duplex stainless steel is more than double that of ordinary austenitic stainless steel. This characteristic allows designers to reduce weight when designing products, giving this alloy a price advantage over 316,317L.
This alloy is particularly suitable for the temperature range of -50°F/+600°F.
For applications beyond this temperature range, this alloy may also be considered, but there are some limitations, especially when applied to welded structures.
Duplex Stainless Steel (DSS for short) refers to stainless steel with about 50% of ferrite and 50% of austenite, and generally less than 30% of the content of the less phase. In the case of low C content, the Cr content is 18%~28%, and the Ni content is 3%~10%. Some steels also contain alloying elements such as Mo, Cu, Nb, Ti, and N. Since its birth in the United States in the 1940s, duplex stainless steel has developed into the third generation. Its main feature is that the yield strength can reach 400-550MPa, which is twice that of ordinary stainless steel, so it can save materials and reduce equipment manufacturing costs. In terms of anti-corrosion, especially under the conditions of harsh medium environment (such as seawater, high chloride ion content), the anti-pitting corrosion, crevice corrosion, stress corrosion and corrosion fatigue properties of duplex stainless steel are obviously better than ordinary austenite Stainless steel, comparable to high alloyed austenitic stainless steels.
The two-phase microstructure of stainless steel is helpful to improve the stress corrosion cracking resistance of stainless steel.
Chloride stress corrosion occurs in austenitic stainless steels under certain temperature, tension, oxygen and chloride conditions.
As these conditions are not easily controlled, the use of 304L, 316L and 317L is limited in this regard.
Corrosion fatigue
The high strength and corrosion resistance of 2205 duplex steel make it have high corrosion fatigue strength.
The processing equipment is susceptible to corrosive environments and loading cycles, and the characteristics of 2205 are ideal for such applications.
Equivalent Grades
| Grade |
Euronorm |
China GB |
Japanese JIS |
| No. |
| 2205 |
1.4462 |
00Cr22Ni5Mo3N |
SUS2205 |
Standard Specification
| Types of stainless steel pipes |
round pipe,squard pipe ,rectangular pipe,oval tube,and pipe in roll. |
| pipe thickness |
0.2-200mm |
| out diameter |
3mm，6mm,10mm,12mm,60mm,80mm,102mm,180mm,245mm,530mm,630mm etc. |
| type of the pipe |
weld pipe and sealess pipe. |
| length |
1000mm,3000mm,5800mm,6000mm,12000mm ,and any length you want,etc. |
| surface |
Hot rolled (HR), Cold rolled Tube (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
Composition content
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 2205 |
Min.
Max. |
≤0.03 |
≤2.00 |
≤1.00 |
≤0.035 |
≤0.03 |
21.0~24.0 |
2.5~3.5 |
4.5~6.5 |
0.08~0.2 |
Alloy and state :926,
Tensile strength (Rm N/mm2):490
Yield strength (RP0.2N/mm2):216,
Elongation A5% :35.
Density: 8.24 g/cm3
Characteristic machining technology
1D -- The surface has discontinuous granular shape, also known as fog surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2D - A slightly silvery white colour.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2B -- Silver white with better gloss and flatness than a 2D surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling.
Ba - Excellent surface gloss, high reflectivity, like a mirror surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenching and tempering rolling.
No.3 -- Good gloss, coarse grain surface.
Processing technology: polishing and tempering rolling for 2D or 2B with 100~120 abrasive materials (JIS R6002).
No.4 -- Good gloss, fine lines on the surface.
Processing process: polishing and tempering rolling for 2D or 2B with 150~180 abrasive materials (JIS R6002).
HL -- Silver grey with hair streaks.
Processing technology: 2D products or 2B products with appropriate granularity of abrasive materials for polishing the surface is a continuous abrasive grain.
MIRRO -- Specular.
Processing technology: 2D products or 2B products with appropriate granularity of the grinding material grinding and polishing to the mirror effect.
Price List
| Stainless Steel 2205 pipe Price List |
FOB Shanghai Per Unit (USD) |
| 2205 stainless steel Round pipe |
$6000.00-$6300.00 |
| 2205 mirror/no.4 Stainless Steel pipe |
$6325.00-$6500.00 |
| 2205 Stainless Steel Square pipe |
$6250.00-$6450.00 |
| 2205 seamless pipe |
$6000.00-$6300.00 |
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