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Unformatted text preview: Claims to improve metallurgy without explaining how it is done or what the improvements are [eliminate martensite, retained austenite, etc.] Claims to eliminate HAZ without providing theory for how the HAZ was formed. II. Codes and Standards 2. [10 points] Calculate the UL Corrosion Resistance Ratio [CRR] for NPS inch schedule 80 steel pipe, threaded in conformance to ANSI/ASME B1.20.1. Assume pipe to be within tolerance specified in ASTM A795 and has been joined using normal wrench make-up values [effective thread length = L 2 ]. OD = 1.0500 + 1/64 = 1.065625 t wall = 0.875*0.1540 = 0.13475 ID = 1.065625 - 2*0.13475 = 0.796125 dE 2 = 1.00179 - 0.05714 = 0.94465 t min = [0.94465-0.796125]/2 = 0.074 CRR = [0.074/0.038] 3 = 7.38...
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This note was uploaded on 07/24/2011 for the course EMA 4714 taught by Professor Staff during the Spring '08 term at University of Florida.
- Spring '08