hardness testing News
-
Qness becomes part of Verder Scientific
Qness is a leading manufacturer of hardness testing machines which comply with recognized standards like Brinell, Vickers, Knoop and Rockwell. The instruments are used both for industrial applications and material research. Moreover, the company specializes in custom-made test lines. The headquarters are located in Golling (near Salzburg, Austria) where Qness develops and manufactures all ...
-
ASTM E2450 - 11 standard practice for application of CaF2(Mn) Thermoluminescence Dosimeters in mixed neutron-photon environments
1. Scope 1.1 This practice describes a procedure for measuring gamma-ray absorbed dose in CaF2(Mn) thermoluminescence dosimeters (TLDs) exposed to mixed neutron-photon environments during irradiation of materials and devices. The practice has broad application, but is primarily intended for use in the radiation-hardness testing of electronics. The practice is applicable to the measurement ...
-
ASTM E721 - 11 standard guide for determining neutron energy spectra from neutron sensors for radiation-hardness testing of electronics
It is important to know the energy spectrum of the particular neutron source employed in radiation-hardness testing of electronic devices in order to relate radiation effects with device performance degradation. This guide describes the factors which must be considered when the spectrum adjustment methodology is chosen and implemented. Although the selection of sensors (foils) and the ...
-
ASTM D7735 - 11 standard test method for type a durometer hardness testing of road marking thermoplastic at elevated temperatures
This method is based on the penetration of a specific type of indentor when forced into the material under specified conditions. The indentation hardness is inversely related to the penetration and is dependent on the elastic modulus, viscoelastic behavior of the material, geometry of the ...
-
Testing nanopositioning devices for Queensgate
The National Physical Laboratory (NPL) has a long standing collaboration with Queensgate Instruments in the area of provision of metrology for nanopositioning. NPL and Queensgate recently completed an Innovate UK project in which NPL developed optical interferometry to enable Queensgate to verify the performance of the next generation of its nanopositioning stages. Queensgate's nanopositioning ...
-
Testing nanopositioning devices for Queensgate
The National Physical Laboratory (NPL) has a long standing collaboration with Queensgate Instruments in the area of provision of metrology for nanopositioning. NPL and Queensgate recently completed an Innovate UK project in which NPL developed optical interferometry to enable Queensgate to verify the performance of the next generation of its nanopositioning stages. Queensgate's nanopositioning ...
-
ASTM F1190 - 11 standard guide for neutron irradiation of unbiased electronic components
Semiconductor devices can be permanently damaged by reactor spectrum neutrons (1, 2) . The effect of such damage on the performance of an electronic component can be determined by measuring the component’s electrical characteristics before and after exposure to fast neutrons in the neutron fluence range of interest. The resulting data can be ...
-
ASTM A370 - 11a Standard Test Methods and Definitions for Mechanical Testing of Steel Products
Ductile vs. Brittle Behavior—Body-centered-cubic or ferritic alloys exhibit a significant transition in behavior when impact tested over a range of temperatures. At temperatures above transition, impact specimens fracture by a ductile (usually microvoid coalescence) mechanism, absorbing relatively large amounts of energy. At lower temperatures, they fracture in a brittle (usually ...
-
ASTM B75 / B75M - 11 standard specification for seamless copper tube
This specification establishes the requirements for seamless round, rectangular, and square copper tube suitable for general engineering applications. The tube shall be manufactured by such hot- and cold-working processes as to produce a homogeneous, uniform wrought structure in the finished product. It shall be cold drawn to the finished size and wall thickness. The requirements and size ...
-
ASTM F912 - 11 standard specification for alloy steel socket set screws
This specification covers the requirements for quenched and tempered alloy steel socket-set screws (SSS). The screws shall be fabricated from alloy steel made to fine grain practice. The screws may be forged, formed, extruded, machined, or ground to meet the dimensional characteristics and performance requirements. The chemical composition of the screw material shall conform to the ...
-
ASTM D1863 / D1863M - 05(2011)e1 Standard Specification for Mineral Aggregate Used on Built-Up Roofs
This specification covers the standards for the quality and grading of crushed stone, crushed slag, and water-worn gravel intended for use as coarse mineral aggregate on built-up roofs. The crushed stone and gravel shall be hard, durable, opaque, and free of foreign substances. The crushed slag, on the other hand, shall be hard, air-cooled, and free of as well of any foreign ...
-
ASTM F880 - 02(2008)e1 Standard Specification for Stainless Steel Socket-Set Screws
This specification covers the requirements for austenitic grade stainless steel socket set screws (SSS), sizes M1.6 through M24, having property classes A1-50 and A1-70. The analysis of the screw material shall conform to the chemical composition specified. Socket set screw shall be subjected to torque test, Vickers hardness test, and ...
-
ASTM A234 / A234M - 11a Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. The material for fittings shall consist of killed steel, forgings, bars, plates, seamless or fusion-welded tubular products with filler metal added. Forging ...
-
ASTM F606 - 11a standard test methods for determining the mechanical properties of externally and internally threaded fasteners, washers, direct tension indicators, and rivets
These test methods cover establishment of procedures for conducting tests to determine the mechanical properties of externally and internally threaded fasteners, washers, direct tension indicators, and rivets. These test methods shall be as follows: externally threaded fasteners; internally threaded fasteners; washers and direct tension indicators; rivets; test for embrittlement of ...
-
ASTM A234 / A234M - 11a Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. The material for fittings shall consist of killed steel, forgings, bars, plates, seamless or fusion-welded tubular products with filler metal added. Forging ...
-
ASTM A623M - 11 standard specification for tin mill products, general requirements [Metric]
This specification covers a group of common requirements which shall apply to tin mill products. The steel shall be made by the open-hearth, electric-furnace, or basic-oxygen process. The steel shall conform to specified chemical composition requirements. Rockwell 30T hardness test shall be done to the plates. This test forms the basis for a system of temper designation. The mechanical properties ...
-
ASTM B894 - 10e1 standard specification for ACuZinc5 (Zinc-Copper-Aluminum) alloy die castings
This specification covers AcuZinc5, zinc-copper-aluminum alloy die castings. The metal used in the manufacture of die castings shall be zinc alloy of a specified chemical composition conforming to the specified requirements. Tensile, yield strength, elongation, and hardness properties shall be determined by tension and hardness tests. The die castings shall be of uniform quality, free of ...
-
ASTM A194 / A194M - 11 standard specification for carbon and alloy steel nuts for bolts for high pressure or high temperature service, or both
This specification covers a variety of carbon, alloy, and martensitic and austenitic stainless steel nuts. These nuts are intended for high-pressure or high-temperature service, or both. Bars from which the nuts are made shall be hot-wrought. The material may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be solution annealed or annealed ...
-
ASTM A354 - 11 Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
This specification covers the chemical and mechanical requirements of quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners. All fasteners shall be made from alloy steel conforming to the chemical composition requirements. Two levels of bolting strength are covered, designated Grades BC and BD. Selection will depend upon design and the stresses and service ...
-
ASTM A320 / A320M - 11a standard specification for alloy-steel and stainless steel bolting for low-temperature service
This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. Each alloy shall conform to the prescribed chemical composition requirements. The material, as represented by the tension specimens, shall conform to the requirements as to tensile properties such as tensile strength, yield strength, elongation, ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you