Oil and gas contractor Bonatti selected an EFD Induction post-weld heat-treatment (PWHT) solution to help build the world’s longest 13% Cr onshore pipeline. The corrosion-resistant pipeline is part of the In Salah Southern Fields project (ISSF) in the Algerian Sahara desert. The order involves two complete PWHT systems for on-site operation in the Saharan desert. Each system is truck-mounted and comprises an EFD Induction Minac 70/110 power source, specially designed induction coils for 8- to 12-inch and 16-inch pipe, and chiller and quench units. The two PWHT systems will be used for butt-to-butt welding of 13% Cr and 13% Cr to duplex steel.