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Brinell equivalent hardness number

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060465
EISBN: 978-1-62708-261-7
... Abstract This appendix includes tables and figures that provide approximate Brinell equivalent hardness numbers for steels. Brinell equivalent hardness number steel HARDNESS CONVERSIONS ( Fig. A3.1 and Table A3.1 ) are empirical relationships limited to specific categories...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130529
EISBN: 978-1-62708-284-6
...; less accurate for cold-worked condition and for austenitic steels. (a) Hardness values outside the recommended range for Brinell testing per ASTM E10. Source: ASTM E140, except for values for tensile strength, which are not from standards Table A3.4 Approximate equivalent hardness numbers...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720085
EISBN: 978-1-62708-305-8
... the Brinell hardness number (HB) by dividing the applied load by the surface area of the indentation according to the following formula: HB = 2 L π D ( D − D 2 − d 2 ) where L is the load in kilograms, D is the diameter of the ball in millimeters, and d...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... Number Conversions , SAE J417 , Society of Automotive Engineers , 1983 7.5 Hardness Conversions—Steel , ISO 4964 , International Organization for Standardization , 1984 7.6 Standard Hardness Conversion Tables for Metals , ASTM E 140 , ASTM International 7.7 Tension Tests...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140039
EISBN: 978-1-62708-264-8
... in that the indent must be made first and then the indent diameter measured optically. The size of the indent should be between 3 to 6 mm (0.12 to 0.24 in., or 120 to 240 mils). The Brinell hardness number (referred to variously as HB or BHN) is then determined either from a table or by using an equation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850334
EISBN: 978-1-62708-260-0
... , 1927 , pp. 195 – 222 . 10.6028/nbst.8941 55. Petrenko S. N. : “ Relationship Between Rockwell and Brinell Numbers , J. Res. Natl. Bur. Stand. , vol. 5 , July 1930 , pp. 19 – 50 . 10.6028/jres.005.003 56. Shaw M. C. : “ Hardness, ” Mechanical Behavior of Materials...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410647
EISBN: 978-1-62708-265-5
... equivalent hardness numbers and tensile strengths for steels (a) Vickers hardness No. Brinell hardness No. 3000 kg load 10 mm ball Rockwell hardness No. Rockwell superficial hardness No., superficial Brale indenter Knoop hardness No., 500 g load and greater Shore Scleroscope hardness No. Tensile...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140175
EISBN: 978-1-62708-264-8
... 5.3 , the measured Brinell hardness numbers have been converted to equivalent R c values in the final column. This is helpful for people who routinely use the C scale as a measure of hardness and find it difficult to evaluate relative hardness using other scales. The data in Table 16.3 illustrate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440283
EISBN: 978-1-62708-262-4
... using a Brinell glass. The reading was then recorded as effective case depth in thousandths of an inch. The referee method for checking effective case depth was by Knoop 500 g microhardness testing to a depth of 50 HRC equivalent. At least one of every ten checks and/or any check of effective case...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.9781627082709
EISBN: 978-1-62708-270-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170091
EISBN: 978-1-62708-297-6
..., giving it distinct advantages in a number of applications. The article also discusses the role of melt treatment elements and explains how alloying and heat treatment affect tensile strength, hardness, toughness, and ductility. compacted graphite iron Composition Selected References...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.9781627082563
EISBN: 978-1-62708-256-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.9781627082914
EISBN: 978-1-62708-291-4
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310127
EISBN: 978-1-62708-326-3
... of time and temperature on Brinell hardness in subcritical annealing of medium-carbon nitriding steel (Nitralloy 135M) with Ac 1 of 790 °C (1450 °F) (a) Subcritical annealing temperature Brinell hardness resulting from holding for indicated time at annealing temperature °C °F 2h 4h 6h 8h...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440207
EISBN: 978-1-62708-262-4
... consistently to quench hardening because the combined carbon is higher. Conventional hardness measurements on cast irons always indicate lower values than the true hardness of the matrix because the graphite particles have essentially no hardness; thus, an indenter such as a Brinell ball or a Rockwell...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240453
EISBN: 978-1-62708-251-8
... to control the carbon equivalent. The annealing time depends on the number of graphite nuclei available for graphitization, which in turn depends on several factors, including the carbon/silicon ratio. As shown in Fig. 24.22 , a lower carbon/silicon ratio (i.e., a greater silicon content for a constant...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120313
EISBN: 978-1-62708-269-3
... Brinell hardness No. Condition Power hacksaw Power band saw Pitch, teeth per in., minimum thickness of material, in. Speed, strokes/min Feed, in./stroke Pitch, teeth per in., minimum thickness of material, in. Speed, fpm Under ¼ ¼ to ¾ ¾ to 2 Over 2 Under ¼ ¼ to 1½ Over 1½ Grade 1...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
.... Its general correlation with the tensile strength of many ferrous alloys allows a rough prediction of tensile strength to be made. The Brinell hardness test is most frequently used for casting alloys. Combination of a large diameter ball (5 or 10 mm or 0.2 or 0.4 in.) and heavy load (500 to 3000...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170021
EISBN: 978-1-62708-297-6
... , p 215 – 231 7. Barlow T.E. and Loriz C.H. , Gray Cast Iron Tensile Strength, Brinell Hardness, and Composition Relationship , Trans. AFS , Vol 54 , 1946 , p 545 8. Foundry Practice for Cast Irons , ASM Specialty Handbook: Cast Irons , Davis J.R. , Ed., ASM...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
...) resulted in a drop in hardness, indicating the onset of cementite conversion to graphite. Table 5 Influence of low-temperature annealing treatments on properties of gray iron castings Heating   Temperature Time, h Average growth Average expansion Brinell hardness °C °F mm in. mm...