Alloy 31 nickel alloy round bar Certification to ISO 15156 MR 0175
High levels of chromium and molybdenum provide excellent resistance to localized corrosion. The high nickel content provides very good resistance to stress corrosion cracking.
EN31 round bars are basically used as connectors between intermediate pipes. They are also used as pressure-resistant sockets in pressure regulators.
Due to its chromium and molybdenum content, UR 31 has excellent resistance to localized corrosion, is much better than traditional 6% Mo grades when tested against the most common standards, and is relatively close to alloy 625.
High nickel content helps increase resistance to stress corrosion cracking. It can be used in a variety of very demanding applications.