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Unformatted text preview: opper 2. Ferrous a. Carbon steel most commonly used in industrial facilities. Contains no principal allow Max temp: 900 Low 90. Impacting testing must do this test to figure the limits test with one or more blows that are suddenly applied to a specimen pipe. The results are in energy absorbs or the number of blows to the break the specimen at a given intensity. b. Low Alloy steel contains very low alloy elements with max 1100. Doesn't have a low limit c. Stainless Steel large amounts of principal alloy elements. Excellent high and low temps. Max 1650. Most common is type 304 different alloy combinations Less common is type 316 more corrosion resistant more expensive Principle Alloy materials 1. 2. 3. 4. 5. 6. Manganese Phosphorus Sulphur Nikel Chromium Molybdenum Ferrous 1. Tensile strength maximum stress a material can withstand before rupture 2. Yield strength enough stress to cause the deformation of steel 3. Creep tendency of a material when exposed to high temp to progressively to deform over a certain period of time Piping specifications 1. ASTMAmerican Society for Testing and Materials a. Materials specify...
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- Spring '09