ESAB introduces Cryo-Shield Ni9 flux cored wire

This modified 625-type wire is said to offer excellent crack resistance and to be superior to conventional NiCrMo-3 wires. Mechanical properties are similar to Hastelloy ENiMo-13 flux cored wires but at lower purchase price because of its modified formula.

Further, because it uses 100% CO2 shielding gas instead of an argon blend, it lowers operating cost. The wire carries approvals from the ABS, BV, DNV GL, KR, LR and CCS classification societies.

“We developed Cyro-Shield Ni9 in response to ship propulsion systems shifting from heavy fuel oil to LNG fuel to reduce oxide emissions,” says Neil Farrow, global product manager – cored wires, ESAB. “This wire also meets the needs of LNG storage tank fabricators and other 9% Ni steel applications.

"In benchmark tests against leading 625-alloy wires, Cryo-Shield Ni9 provided superior crack-resistance tolerance, which is especially critical for root welding. Customer field tests with 100% CO2 shielding gas also confirmed better tolerance to porosity formation, wet-out for a flatter bead crown and slag release compared to conventional 625-alloy wires. In addition, the slag system supports all-position welding, including over-head.”

ESAB offers Cryo-Shield Ni9 in 1.2mm diameter and packaged on 300mm wire baskets or plastic spools; vacuum-seal foil packaging prevents moisture absorption. Typical as-welded mechanical properties are a yield strength of 440MPa, tensile strength of 730MPa, elongation of 44% and an impact value of 65J at -196°C.

ESAB also offers a full portfolio of filler metal and equipment for LNG applications. Contact an ESAB sales representative to learn more or visit: esab.com/fillermetals to view additional product information.

ESAB connects fabricators with a wide range of products and offers the latest technologies to solve virtually any industry challenge. This is backed by the company's knowledge, experience and passion. To learn more, visit: esab.com.