STAINLESS STEEL | TRADENAME | UNS NO. | WERKSTOFF NO. | DENSITY (G/CM3) |
Super Duplex | F55 / 2507, F53 | S32760 / S32750 | 1.4501 / 1.4410 | 7.805 |
CR | NI | MO | C | W | CU |
---|---|---|---|---|---|
24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.030 Max | 0.5-1.0 | 0.50-1.0 |
N | MN | SI | P | S | FE |
---|---|---|---|---|---|
0.2-0.3 | 1.00 Max | 1.0 Max | 0.03 Max | 0.01 Max | Balance |
CR | NI | MO | C | N | MN |
---|---|---|---|---|---|
24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.030 Max | .24-.32 | 1.20 Max |
Si | Cu | P | S | Fe | |
0.80 Max | 0.50 Max | 0.035 Max | 0.020 Max | Balance | |
| SUPER DUPLEX STAINLESS STEEL |
---|---|
Density | 7.805 |
Melting Range,℃ | 1350 ℃ |
Elongation % | 15 min. |
Tensile Strength (Mpa) | 800 |
Yield Strngth (Mpa) | 550 |
Hardness (Brinell) | 270 max |
Grade | | C | Mn | Si | P | S | Cr | Mo | Ni | N |
2205 (S31803) | Min Max | - 0.030 | - 2.00 | - 1.00 | - 0.030 | - 0.020 | 21.0 23.0 | 2.5 3.5 | 4.5 6.5 | 0.08 0.20 |
2205 (S32205) | Min Max | - 0.030 | - 2.00 | - 1.00 | - 0.030 | - 0.020 | 22.0 23.0 | 3.0 3.5 | 4.5 6.5 | 0.14 0.20 |
Grade | Tensile Str (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell C (HR C) | Brinell (HB) | ||||
2205 | 621 | 448 | 25 | 31 max | 293 max |
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C ( J/kg.K) | Electrical Resistivity (nΩ.m) | |||
0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
2205 | 782 | 190 | 13.7 | 14.2 | - | 19 | - | 418 | 850 |
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
---|---|---|---|---|---|---|---|
BS | En | No | Name | ||||
2205 | S31803 / S32205 | 318S13 | - | 1.4462 | X2CrNiMoN22-5-3 | 2377 | SUS 329J3L |
Grade | Reasons for choosing the grade |
904L | Better formability is needed, with similar corrosion resistance and lower strength. |
UR52N+ | High resistance to corrosion is required, e.g. resistance to higher temperature seawater. |
6%Mo | Higher corrosion resistance is required, but with lower strength and better formability. |
316L | The high corrosion resistance and strength of 2205 are not needed. 316L is lower cost. |
Standard | No. | C (max) | Si (max) | Mn (max) | P (max) | S (max) | Cr | Ni | Mo | N |
ASTM | S31803 | 0.030 | 1.00 | 2.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
EN | 1.4462 | 0.030 | 1.00 | 2.00 | 0.035 | 0.015 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.10-0.22 |
No. | Tensile Strength σb(Mpa) | Yield Point σs(Mpa) | Elongation Rate δ5(%) | HB | HRC |
S31803 | ≥620 | ≥450 | ≥25 | ≤290 | ≥30.5 |