Rockwell hardness


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Rockwell hardness

[′räk‚wel ′härd·nəs]
(engineering)
A measure of hardness of a material as determined by the Rockwell hardness test.

Rockwell hardness

Rockwell hardness tester
A measure of the resistance of a material to indentation; determined by use of a machine which presses a steel ball or a spheroconical ball indentor into the material under arbitrarily fixed test conditions; expressed by the Rockwell hardness number—the higher the number, the harder the material.
References in periodicals archive ?
HR Series Rockwell hardness testing machines support MeasurLink[R], Mitutoyo proprietary statistical processing and process control software.
15 Table 2: The hot hardness of the P-40 inserts Rockwell Hardness, HRA Temperature [degrees]C P 40 Untreated P40 Normal cryogenic treated Room 84 84 temperature 100 83 83 200 81.
Instron introduced several new Wilson hardness testers: the Tukon 2100 Microhardness Tester and Wilson Series 2000 Rockwell Hardness Tester with closed-loop, load control designs; the Wilson MicroRockwell Hardness Tester designed for high speed production testing of small or thin components; and the M-200A and M-250A, compact, light weight testers.
Power 2 Bits are manufactured to the North American ANSI standard and are rated 59-62 Rockwell hardness.
Limited Tenders are invited for Quotations In E-Mode Are Invited For Design, Manufacture, Supply, Installation And Commissioning Of Design Rockwell Hardness Tester To Beml, Mysore Complex
Texin RxHM125 is a clear TPU with a Rockwell hardness of 125 (87 Shore D) - the hardest of the new grades - and a flexural modulus of 330,000 PSI.
The originator of the Rockwell hardness tester has introduced its Tukon 2500 Minuteman ELT automated Vickers/ Knoop hardness tester.
Teague heat-treats his knives to a Rockwell hardness of 60-61 RC, which through many years of testing his mentor Dozier finds is ideal for D2's edge-holding capability.
The indentation method with the Rockwell hardness tester is the best to simulate defects in the glass samples.
Each bit is made of S-2 steel and hardened to a Rockwell hardness of Rc59 plus or minus and features the same kind of quality people have come to expect from Smith & Wesson.
5 ft-lb/inch (187 J/m) (ASTM D-276), tensile strength of 6000 psi (41 MPa) (ASTM D-638), Rockwell Hardness of 98 (ASTM D-785), and heat-deflection temperature of 172[degrees]F at 264 psi (78[degrees]C at 1.
A central- or double-bevel steel die with 50 to 55 C Rockwell hardness is recommended.