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Login with my Xometry account Choosing material for high-temp, high-pressure reheater tubes
J
Hi everyone! I’m working on reheater tubes for an ultra-supercritical boiler operating around 700 °C and 28 MPa. I’m evaluating Inconel 617, 740H, Alloy 263, and Super 304H for their high-temp creep strength, oxidation resistance, and overall weldability. Has anyone used these alloys in similar high-pressure steam service? I’d really appreciate insights on their long-term creep performance and any practical fabrication or cost challenges you’ve faced. Thank you in advance, I’m a bit of a beginner in this area!
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