Recognition of UNS S34752 (Advanced 347 AP) Alloy in API 579-1/ASME FFS-1 and API Std 530
N.G. Sutton, L.A. Baldesberger, D.A. Osage, ASME Fellow, P.E.
Number of Pages
This WRC Bulletin records the data used to gain approval of ASME and API for application of the Advanced 347 AP (UNS S34752) alloy at elevated temperatures. All data and property equations are provided herein in both US Customary and Metric units. Included in the data collections and curve fits are yield and tensile strengths, Larson-Miller stress-rupture properties, and MPC Omega Method properties, including Omega parameter and initial creep strain rate coefficients corresponding to the stresses and temperatures for which data were provided. Also contained within this Bulletin are available data for welded joints, intended to demonstrate the suitability of welded constructions of Advanced 347 AP for elevated temperature service, and establish recommended modifications to the provided base metal properties to account for the behavior of welded joints.