Duplex 2205 DIN9021
Special Stainless Steel Large Flat Washer
What is Duplex stainless steel 2205 ?
Duplex stainless steel 2205 (UNS S32205) is an advanced material that combines austenitic and ferritic dual-phase structures. With its high strength, corrosion resistance, and versatility in multiple fields, it has become a key material in modern industry surely.
The chemical composition of duplex stainless steel 2205 has been carefully designed, and its core elements include Chromium (Cr): 22.0-23.0%, Molybdenum (Mo): 3.0-3.5%Â ,Nickel (Ni): 4.5-6.5% and other elements.
Its fasteners including washers, bolts,nuts are commonly used in industries such as oil and gas, chemical, seawater desalination, paper and food.
Technical Introduction- Comprehensive Analysis of Duplex Stainless Steel 2205
DETAIL DIMENSIONS OF Duplex 2205 DIN9021 ：
| M3 | M4 | M5 | M6 | M8 | M10 | |
| dc inner dia | 3.2-3.38 | 4.3-4.48 | 5.3-5.48 | 6.4-6.62 | 8.4-8.62 | 10.5-10.77 |
| d outer dia | 8.64-9 | 11.57-12 | 14.57-15 | 17.57-18 | 23.48-24 | 29.38-30 |
| h thickness | 0.7-0.9 | 0.9-1.1 | 1-1.4 | 1.4-1.8 | 1.8-2.2 | 2.3-2.7 |
| M12 | M14 | M16 | M18 | M20 | M24 | |
| dc inner dia | 13-13.27 | 15-15.27 | 17-17.27 | 20-20.52 | 22-22.52 | 26-26.84 |
| d outer dia | 36.38-37 | 43.38-44 | 49.38-50 | 54.1-56 | 58.1-60 | 70.1-72 |
| h thickness | 2.7-3.3 | 2.7-3.3 | 2.7-3.3 | 3.4-4.6 | 3.4-4.6 | 4-6 |
MATERIAL: 1.4462 Duplex Stainless Steel (UNS S32205)
Metric or Inch: Metric
Finish: Plain
RoHS Compliant
More information about screws made of Nickel Alloys and Special Stainless Steel  material please check:
Nickel Alloys and Special Stainless Steel
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