The 2007 Edition of ASME Section VIII, Division 2 of the ASME Boiler and Pressure Vessel Code is a complete rewrite of the 2004 edition that updates and modernizes the Code to provide for major technical advances in pressure vessel analysis, design, construction and related sciences such as materials, welding and nondestructive examination. In addition, the rewrite is structured in order to make it more user-friendly for both users and the committees that maintain it. New and updated technology includes:

• Toughness requirements

• Material procurement table

• Conical transition reinforcement requirements

• Opening reinforcement rules

• Local strain criteria for design by analysis using elastic-plastic analysis

• Plastic collapse from multiple loading conditions

• Fatigue design based on structural stress method

In order to get the latest maximum allowable stress values that correspond with these revisions out to users of the Code in a timely manner, we have posted Table 5A, titled “Section VIII, Division 2 Maximum Allowable Stress Values Sm for Ferrous Materials,” which covers allowable stresses for all product forms except bolting for carbon steel, high alloy steel, low alloy steel, and quenched and tempered high strength steels and Table 5B, titled “Section VIII, Division 2 Maximum Allowable Stress Values Sm for Nonferrous Materials,” which covers allowable stresses for all product forms except bolting for aluminum and aluminum alloys, copper and copper alloys, nickel and nickel alloys, and titanium and titanium alloys here.  These tables are an integral part of Section II, Parts D & DM that are referenced by Section VIII, Division 2.  They will also be published in print in the 2008 Addenda of II-D.

Table 5A Maximum Allowable Stress Values Sm for Ferrous Materials

• Click here for Values (both U.S. Customary and Metric) Excel file/Read only
  -Click here to download* the excel file to your hard drive to enable sort, filter and export options.
  
  
• Click here for the Notes related to U.S. Customary only Word file/Read only
  
  
• Click here for the Notes related to Metric only Word file/Read only

Table 5B Maximum Allowable Stress Values Sm for Nonferrous Materials

• Click here for Values (both U.S. Customary and Metric) Excel file/Read only
  -Click here to download* the excel file to your hard drive to enable sort, filter and export options.
  
  
• Click here for the Notes related to U.S. Customary only Word file/Read only
  
  
• Click here for the Notes related to Metric only Word file/Read only

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