DUPLEX STAINLESS STEEL

2.5 - 3.5

2.5 -3.5

Secondly, the two-phase microstructure guarantees higher resistance to pitting and stress corrosion cracking in comparison with conventional stainless steels.
The duplex stainless steels comprise a family of grades with a range in corrosion performance depending on their alloy content.

Firstly, the chemical composition based on high contents of Cr and Mo, improves intergranular and pitting corrosion resistance, respectively. Moreover, additions of nitrogen can promote structural hardening by interstitial solid solution mechanism, which raises the yield strength and ultimate strength values without impairing toughness.