ASTM E18-24 pdf download,Standard Test Methods for Rockwell Hardness of Metallic Materials. The current suite of test methods is designed to assess the Rockwell hardness and Rockwell superficial hardness of metallic substances through the Rockwell indentation hardness technique. The standard delineates the necessary criteria for Rockwell hardness testing equipment and outlines the protocols for executing Rockwell hardness assessments. The method encompasses details for the utilization of handheld Rockwell hardness testing devices, which employ the Rockwell hardness testing principle and are capable of satisfying all the stipulations of this method, including both direct and indirect validations of the testing equipment. Handheld...

ASTM D8267-24 pdf download,Standard Test Method for Determination of Total Aromatic, Monoaromatic and Diaromatic Content of Aviation Turbine Fuels Using Gas Chromatography with Vacuum Ultraviolet Absorption Spectroscopy Detection (GC-VUV). The present test method establishes a standardized process for assessing the levels of total aromatic, monoaromatic, and diaromatic constituents in aviation turbine fuels through the use of gas chromatography coupled with vacuum ultraviolet detection (GC-VUV). The quantification of various compound classes and specific compounds is conducted on a percentage mass or volume basis. It is important to note that this method does not provide a report on individual hydrocarbon components; instead,...

ASTM A247-24 pdf download,Standard Test Method for Visual Evaluation of Graphite in Iron Castings. 1.1 This test method ASTM A247 is designed to categorize graphite in cast irons based on type, distribution, and size through visual comparison to reference photomicrographs. It is intended for use with all iron-carbon alloys containing graphite particles and can be applied to gray irons, malleable irons, compacted graphite irons, and ductile (nodular) irons. 1.2 The reference photomicrographs included in this test method should not be interpreted as specifications. They are provided solely for the purpose of defining the graphite microstructure required in a specific material’s...

ASTM A536-24 pdf download,Standard Specification for Ductile Iron Castings. 1.1 This specification ASTM A536 applies to castings fabricated from ductile iron, also referred to as spheroidal or nodular iron. It is characterized by cast iron that contains graphite predominantly in a spherical shape and is essentially free of other graphite forms, as defined in Terminology A644. 1.2 It is not possible to establish a precise quantitative correlation between the properties of the iron at different locations within a single casting or between the properties of the casting and those of a test sample that has been cast from the same...

ASTM A908-24 pdf download,Standard Specification for Stainless Steel Needle Tubing. 1.1 This specification pertains to austenitic stainless steel needle tubing, which is hard-drawn for use in industrial settings. 1.2 Generally, needle tubing refers to tubular products with small diameters, featuring outside diameters (ODs) ranging from 0.008 to 0.203 inches (0.2 to 5.2 mm) and nominal wall thicknesses from 0.002 to 0.015 inches (0.05 to 0.4 mm). The standard range for needle tubing gauges typically spans from 6 to 33. 1.3 The numerical values provided in inch-pound units are considered the standard. The values presented in parentheses are the corresponding conversions...

ASTM A370-24 pdf download,Standard Test Methods and Definitions for Mechanical Testing of Steel Products. The present test methods encompass the protocols and terminologies necessary for the mechanical evaluation of steels, stainless steels, and their pertinent alloys. The diverse mechanical assessments detailed here serve to establish the characteristics necessary for the product’s specifications. It is imperative to steer clear of deviations in the testing methodologies and to adhere to established testing standards in order to achieve results that are both reproducible and comparable. Should there be instances where the testing demands for particular products are distinctive or do not align with...