ASTM A148 / A148M – 08 Standard Specification for Steel Castings, High Strength, for Structural Purposes
ASTM A148 / A148M
Abstract ASTM a148 pdf
This specification covers the standard for carbon steel, alloy steel, and martensitic stainless steel castings that are to be subjected to higher mechanical stresses. All castings shall undergo heat treatment either by full annealing, normalizing, normalizing and tempering, or quenching and tempering and shall be regulated under pyrometers. Several grades of steel castings are covered and shall conform to the required chemical composition for sulfur and phosphorus. A tension test shall be performed and shall conform to the required tensile strength, yield point, and elongation. The notch bar impact properties shall also be determined by testing one set of three Charpy V-notch impact specimens.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers carbon steel, alloy steel, and martensitic stainless steel castings that are to be subjected to higher mechanical stresses than those covered in Specification A 27/A 27M.
1.2 Several grades of steel castings are covered, having the chemical composition and mechanical properties prescribed in Tables 1 and 2.
1.3 The values stated in inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
2. Referenced Documents (purchase separately)
A27/A27M Specification for Steel Castings, Carbon, for General Application
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A781/A781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
alloy steel; carbon steel; castings; high strength steel; martensitic stainless steel; steel castings; structural castings; Alloy steel castings–specifications; Carbon steel castings–specifications; Structural steel (SS) castings–specifications;