Duplex Stainless Steel 2205 Welding

The notes below are shortened rules of thumb so please consult the full welding guides for details.

Duplex stainless steel 2205 welding.

The matching fillers have been reported to give acceptable results when joining duplex stainless steels to austenitic stainless steels or to carbon and alloy steels. Alloyed duplex stainless steel weld fillers are suitable for welding the lower alloyed duplex stainless steel products. For example 2205 uses 2209 and zeron 100 uses zeron 100x. Here are links for welding 2205 duplex and for zeron 100 super duplex.

It should be easy to achieve full penetration. Preheating as a general rule preheating is not. This research study attempts to create an optimized parametric window by employing taguchi algorithm for plasma arc welding paw of 2 mm thick 2205 duplex stainless steel. A suitable electrode diameter is 5 64 3 32 inch 2 2 4 mm depending on base metal thickness welding position and accessibility for root side grinding.

The duplex family covers a broad range of corrosion resistance allowing the substitution of standard stainless grades from 304 with lean duplex ur 2202 904l with ur 2205 up to 6mo with ur 2507 super duplex. Click on pwl 081 to read it. An article on spot welding duplex stainless steels was published 11 in issue 81 of practical welding letters for may 2010. Selection of a joint design should accommodate the following guidelines.

Except that flux cored arc welding fcaw is not recommended especially for the super duplex grades. 4 type 2205 code plus two duplex stainless steel welding.