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328 Gas Turbine Handbook: Principles and Practices Appendix C-2 Material Chart The information provided in the following tables is excerpted from the United Technologies, Pratt & Whitney Alloy Reference List. This list is a compilation of the specification condition and form, nominal chemistry, coefficient of expansion and density of gas turbine alloys listed by AMS, PWA specification and AISI, AA or brand name. Each AMS and PWA specification number is immediately followed by the form(s) in which the material is supplied (a nomenclature key is provided in Table C-2.1). The specification condition in the SPEC. COND. column refers to the condition in which the material is received by the purchaser (a nomenclature key is provided in Table C-2.2). The alloy chemistry percentages are listed on top in the row for each alloy. The “R” indicates that the remainder of the chemical composition is made up of that element. The coefficients of expansion (micro in./in./°F) are listed on the bottom in the row for each alloy. The temperatures pertaining to the coefficient of expansion is listed below the element name. Example: Incoloy 901 (page 303) AMS 5660 and 5661 (B=Bar, F= Forging)//PWA Spec 1003 (Bar, Forging), 1022 (Forging), 1024 (Forging)//SPEC COND.: SSP=Solution, Stabilization and Precipitation Heat Treated; SP= Solution and Precipitation Heat Treated//Considering the column under Ni=Nickel: 42.5% is nickel, and the coefficient of expansion at 200°F is 7.75. Table C-2.1. Specification Form ———————————————————————————————— AT Seamless Tubing PMET Powder Metallurgy ———————————————————————————————— B Bar PR Preform ———————————————————————————————— BI Billet R Rings ———————————————————————————————— CC Centrifugally Cast RO Rod ———————————————————————————————— DS Directionally Solidified S Sheet ———————————————————————————————— E Extrusion SC Sand Cast ————————————————————————————————
Appendix C 329 Table C-2.1. Specification Form (Continued) ———————————————————————————————— F Forging ST Strip ———————————————————————————————— HIP Hot Isostatically Pressed SXL Single Crystal ———————————————————————————————— MT Mechanical Tubing W Wire ———————————————————————————————— P Plate WDT Welded and Drawn Tubing ———————————————————————————————— PC Investment Cast WT Welded Tubing ———————————————————————————————— PM Permanent Mold WW Weldwire ———————————————————————————————— Table C-2.2. Specification Condition ———————————————————————————————— AC As Cast SCT Subzero Cooled and Tempered ———————————————————————————————— AHCF Annealed and Hot or SCW Solutioned and Cold Worked Cold Finished ———————————————————————————————— ANN Annealed SEO Solutioned, Equalized and Overtempered ———————————————————————————————— AO As Ordered SO Solution Heat Treated and Overaged ———————————————————————————————— AP Annealed and Precipi- SOL Solution Heat Treated tation Heat Treated ———————————————————————————————— CD Cold Drawn SP Solution and Precipitation Heat Treated ———————————————————————————————— CT Cold Worked and SR Stress Relieved Tempered ———————————————————————————————— ELI Extra Low Interstitial SSP Solution, Stabilization and Precipitation Heat Treated ———————————————————————————————— EO Equalized and SSR Solution and Stress Relieved Overtempered ———————————————————————————————— EQ Equalized SST Solutioned and Stabilized ———————————————————————————————— H Hardened STP Stabilized and Precipitation Heat Treated ———————————————————————————————— HCF Hot or Cold Finished STS Stabilized and Solutioned ———————————————————————————————— HCFT Hot or Cold Finished SWP Solutioned, Cold Worked, and or Tempered Precipitation Heat Treated ———————————————————————————————— HS Homogenized and TEM Tempered Solutioned ———————————————————————————————— OT Overtempered VAR Various ————————————————————————————————
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Gas Turbine Handbook: Principles an
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Gas Turbine Handbook: Principles an
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Dedication This book is dedicated t
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Contents PREFACE ..................
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Chapter 13—BOROSCOPE INSPECTION .
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Preface to the Third Edition The ne
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Acknowledgments I wish to thank the
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2 Gas Turbine Handbook: Principles
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Figure 2-3. Courtesy of United Tech
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100 Gas Turbine Handbook: Principle
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Chart 8-1 Gas Turbine Environments
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Page 370 and 371: 5. Weather Hood Material __________
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