Super Duplex ASTM 2205 Steel UNS S32205 Stainless
Suitable for pipes and long pipes required for transporting and producing gases and petroleum; Seawater desalination equipment, storage tanks, distribution tanks, water purification plants and other waterway equipment
Keywords：
Description
Duplex-ASTM2205 is a duplex stainless steel composed of 22% chromium, 3.0% molybdenum, and 4.5% nickel nitrogen alloy. It has high strength, good impact toughness, and good overall and local stress corrosion resistance:
1) Excellent resistance to pitting corrosion, crevice corrosion, stress corrosion cracking, wear and corrosion, and corrosion resistance, superior to 316L and 317L in most environments
2) High mechanical strength
Chemical Composition
| unit:(wt%) | ||||||||||
| specifications | C | Si | Mn | P | S | Cr | Ni | Mo | N | PREN |
| ASTM2205 | ≦0.03 | ≦1.0 | ≦2.0 | ≦0.030 | ≦0.02 | 22~23 | 4.5~6.5 | 3.0~5.0 | 0.14~0.20 | ≧35 |
| longpeng 2205 | 0.02 | 0.55 | 1.5 | 0.02 | 0.001 | 22.5 | 5.8 | 3.2 | 0.16 | |
| *PREN = Cr+3.3Mo+16N | ||||||||||
2205 has superior C1 corrosion resistance and excellent corrosion resistance in non oxidizing acid environments
Mechanical properties
| Distinguish | Yielding strength 0.2%(MDa) | Tensile strength (Mpa) | Elongation A50(%) | Hardness (HB) |
| ASTM2205 | ≥450 | ≥620 | ≥18 | ≤320 |
| Representative value | 570 | 850 | 31 | 250 |
Pitting resistance performance
| average value | |||
| distinguish | medium | Base material | |
| longpeng | Other societies | ||
| CPT (G150) | 1MNaCI | >50℃ | >50℃ |
| CPT (G48A) | 6%FeCl3 | 50℃ | 50℃ |
| CPT (G48E) | 6%FeCl2+1%HCI | 40℃ | 40℃ |
| CPT (G48F) | 20℃ | 20℃ | |
Stress corrosion cracking resistance
| distinguish | medium | longpeng | Other societies |
| SCC Sensibility | 42% MgCl2(Boiling) | ≦0.080 | ≦0.080 |
Harmful metal interphase
| Experimental standards | medium | Benchmark allowable range | longpeng |
| A923C | 6%FeCl3，PH 1.3，50℃，24hr | ≤10mdd | 0.8mdd |
Production specifications
1.<1.0mmt products require secondary rolling, with a delivery time of 40 days
2. HR3t ×1500mm,2.5M Plate
Scope of application
Applicable Uses
water storage tank
Seawater desalination equipment
Water pipes
Pressure vessels containing chloride ions, etc
Product Advantage
1) Its excellent corrosion resistance
2) Critical pitting temperature>50 ℃, reaching the leading level in China
undefined
Send Inquiry
NOTE: Please leave your email, our professional person will contact you asap!
Get the latest information
Give us your email and you will be updated with the latest events, in detail.