Email Print Facebook Twitter Google LinkedIn Whatsapp Share

Duplex 2205 Stainless Steel

Duplex 2205 Pipe

904L is an austenitic grade stainless steel with low carbon and higher resistance to stress and crevice corrosion cracking as compared to AISI 316 & AISI 317 stainless steel grades. Due to addition of Copper, it has increased resistance to phosphoric, sulphuric and hydrochloric acid concentration. It is sometimes referred to as super austenitic stainless steel due to superiority over other 300 series austenitic steel grades. 904L is also resistant to chloride and sea water attack. 904L is primarily used in production and transport of phosphoric acid as well as in environment containing concentrations of phosphoric acid or phosphorous gas.

Kindly browse through available product list, specification and properties of 904L.

View Technical Information     Download Duplex 2205 Data Sheet

Other Duplex 2205 Products

Duplex 2205 Equivalent Grade Designation

AISI UNS DIN / EN / Werkstoff Number Euronorm / DIN Name Swedish Brand Name
904L N08904 1.4539 X1-Ni-Cr-Mo-Cu-25-20-5 SS 2562 URANUSĀ® B6

Duplex 2205 Properties

Duplex 2205 Chemical Composition

Elements Carbon Manganese Phosphorus Sulphur Silicon Chromium Nickel Molybdenum Nitrogen Copper
Compositions by % 0.02 max 2.00 0.045 0.035 1.00 19.0 - 23.0 23.0 - 28.0 4.0 - 5.0 0.1 1.0 - 2.0

Duplex 2205 Mechanical Properties

Tensile Strength, min Yield Strength, min Elongation, min Reduction of Area, min Hardness
490 MPa 220 MPa 35%    

Duplex 2205 Product Specifications

Seamless / Welded Pipe ASTM A312 TP 904L
Seamless / Welded Tubing ASTM A269 TP 904L
Bar / Rod ASTM A276 / A479 TP 904L
Forging ASTM A182 F904L
Sheet / Plate ASTM A240 UNS N08904
Welding Consumable AWS A5.9 ER385