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A Design Study in Centrifugal Steel Castings - Accumulator Cylinder                                  

Duplex Alloy Selection

The duplex stainless steel alloy of choice for this casting is ASTM A-890, which is available in seven different grades.

Given the mechanical property requirements for the accumulator, consider the nominal properties of three A-890 grades in the table below and choose the grade that best meets the mechanical requirements. 

ASTM A-890-Grades => 


Grade 1A 
Grade 4A
Choose Grade 1B Modified
   Ultimate Tensile Strength  110 ksi 100 90 110
   Yield Strength  70 ksi 70 60 70
   % Elongation 20% 16% 25% 30%


Choose an alloy  grade above


Copyright 2004  by the Steel Founders' Society of America   All rights reserved. 
Address comments to: blairr@sfsa.org
Last Modified:March, 2004 by STG

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