COBALT
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Best Practices When Using Specialty Materials for SWRO Feed and Brine Reject Lines
In our webinar, we’ll explore the fascinating journey of stainless steels in SWRO (Seawater Reverse Osmosis) applications.
2024 Trade Shows
Come talk to a Rolled Alloys representative in person about your project. You can find us at these trade shows.
Los Angeles Operations Tour
Welcome to Rolled Alloys, Los Angeles, where our General Manager, Carol Plana, with nearly two decades of experience, leads an
Dual Certification
The term “dual certification” is primarily employed when certifying a material as meeting the specifications for two separate alloys.
188
Alloy 188 is a cobalt base superalloy with a unique combination of high temperature strength and oxidation resistance, along with adequate ductility after prolonged exposure to the 1400-1600°F temperature range.
Cobalt alloys have an inherent advantage over the nickel base grades in high temperature creep. Alloy 188 is solid solution strengthened by a 14% tungsten addition, and further by M6C and M23C6 carbides. Alloy 188 is readily fabricated, being welded by both manual and automatic methods including electron beam, gas tungsten arc and resistance welding.
- Strength and oxidation resistant to 2000°F
- Good post-aging ductility
- Resistant to sulfate deposit hot corrosion
UNS: R30188
W. NR.: 2.4683
AMS: 5608, 5801
PWA: 1042
- Gas turbine engine combustor cans, spray bars, flame-holders and afterburner liners
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