LINCOLN® ER2209 provides excellent resistance to stress corrosion, cracking and pitting. Welding of duplex stainless calls for controlled welding parameters to achieve specified mechanical and corrosion resistant properties.

Features

• The welds offer excellent resistance to stress corrosion, cracking and pitting
• The microstructure of the weld metal consists of austenite and ferrite
• The ferrite content of the weld metal will be lower than the ferrite content of type 2205 base metal
• Welding of duplex stainless steels calls for controlled welding parameters to achieve specified mechanical and corrosion resistant properties
• Ink jet printing identification on entire length of electrode
• Q2 Lot® - Certificate showing actual wire composition and calculated ferrite number (FN) available online

• WIRE COMPOSITION

   

  WIRE COMPOSITION

  Classification
  ER2209 Requirement
  Typical Result

  %C	%Cr	%Cu	%Mn	%Mo	%N	%Ni	%P	%S	%Si	Ferrite Number (Delong ©)	Ferrite Number (WRC-1992 ©)
  0.03 max.	21.5 - 23.5	0.75 max.	0.50 - 2.00	2.5 - 3.5	0.08 - 0.20	7.5 - 9.5	0.03 max.	0.03 max.	0.90 max.
  0.01	22.7-22.9	0.04-0.09	1.53-1.60	3.1	0.15-0.16	8.3-8.5	0.02	0.003 max.	0.52-0.58	32	54-60