#Asme section 1 pdf free download code#
The tables are located in an Appendix near the back of the 1983 Code Extract. Maximum allowable stress value, at the operating temperature of the metal, as listed in the Table PG-23.1, (megapascals, MPa). This is a factor that has no units, (for example, the value of ‘E’ for seamless cylinders is 1.00) The values allowed for ‘E’ are listed in PG-27.4, Note 1. Inside radius of cylinder (millimetres, mm)Įfficiency of longitudinal welded joints or of ligaments between openings, whichever is lower. Outside diameter of cylinder (millimetres, mm) Maximum allowable working pressure (megapascals, MPa). Minimum required thickness (millimetres, mm). It is extremely important that the correct units be applied when performing the calculations: t SYMBOLS USED IN THE FORMULAE OF PG-27 The symbols in the formulae to be used in this module are found in Paragraph PG-27.3 and are defined as follows. OBJECTIVE 1 Given the tube material specification numbers, and other necessary parameters, use the formulae in PG-27.2.1 to calculate either the minimum required wall thickness or the maximum allowable working pressure for a boiler tube. Note: All information and questions posed in this module are in SI units, per ASME 1983 edition and will be referenced to the SI Extract, as supplied with the course. Given the design and steam generation capacity of a boiler, use information in paragraphs PG-67 to PG-71 to calculate the minimum relieving capacity of the boiler safety or relief valve.
Given the required specifications and operating conditions, use the formulae in paragraphs PG-29.11 and PG-29.12 to calculate the required thickness of an unstayed, full-hemispherical head. Given the required specifications and operating conditions, use formula PG-29.1 to calculate the required thickness of a seamless, unstayed dished head. Given the material specification, construction method, and other necessary parameters, use the formulae in PG-27.2.2 to determine the required thickness and or maximum working pressure for boiler drums, headers, or piping. Given the tube material specification numbers, and other necessary parameters, use the formulae in PG-27.2.1 to calculate either the minimum required wall thickness or the maximum allowable working pressure for a boiler tube. Learning Objectives You will specifically be able to complete the following tasks: 1. Learning Outcome When you complete this learning material you will be able to: Using the 1983 ASME Section I Code Extract (SI), and related tables, calculate the design thickness and pressure of boiler tubes, drums, and piping, and calculate the capacities of safety valves. Code Calculations – ASME Section I Section 2 – Module 2 Feb2004
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