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Rockwell hardness

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004044
EISBN: 978-1-62708-185-6
... Abstract This article presents a comprehensive collection of tables that list Rockwell hardness and superficial hardness numbers for wrought aluminum products, wrought coppers, and cartridge brass. hardness number Rockwell hardness wrought aluminum wrought coppers Table 1...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004043
EISBN: 978-1-62708-185-6
... − HRB ) (60–90 HRB, 110–192 HB) Stable alpha-beta titanium alloys HRC=0.078 HV+8.1 Table 2 Approximate Rockwell B hardness conversion numbers for nonaustenitic steels Rockwell Superficial Rockwell Vickers Knoop, 500 gf and over Brinell, 3000 kgf, 10 mm ball Tensile...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006289
EISBN: 978-1-62708-169-6
... conductivity values for various aluminum alloy tempers Alloy Temper Brinell hardness Rockwell hardness Typical conductivity B E H 15T Bare alloys 2014 O … 22 max 70 max 95 max … 43.5–51.5 T3 100 65 95 … 82 31.5–35 T4 100 65 95 … 82 31.5–34.5 T6 125 78 102...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001243
EISBN: 978-1-62708-170-2
.... Rather, the as-plated brightness can serve as an indication of hardness. The hardness of chromium plate cannot be accurately determined by the common hardness testers, such as Brinell and Rockwell, because hard chrome is generally too thin for these tests. The indentation produced in these tests...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... Macroindentation hardness testing Rockwell hardness Hardness Need smooth surface finish, flat surface, and parallel sides Sample must fit within the machine and be balanced on the pedestal Brinell hardness Hardness Need smooth surface finish, flat surface, and parallel sides Sample must fit within the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003103
EISBN: 978-1-62708-199-3
... opposite end is cooling slowly in air, and intermediate positions along the specimen are cooling at intermediate rates, After the specimen has been quenched, parallel flats 180° apart are ground 0.015 in. (0.38 mm) deep on the cylindrical surface, Rockwell C hardness is measured at intervals of 1 16...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003152
EISBN: 978-1-62708-199-3
... strength and high in resistance to abrasion and cratering. It is used extensively for high-speed, light-duty finishing. The complex grade highest in cobalt content and in TaC is preferred for hot-work tools, in both cutting and shaping of metals. Hardness is typically measured on the Rockwell A scale...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003082
EISBN: 978-1-62708-199-3
... (Rockwell C hardness range) For carbon and alloy steels in the annealed, normalized, and quenched-and-tempered conditions. Rockwell C hardness No., 150 kgf, HRC Vickers hardness No., HV Brinell hardness No. Knoop hardness No., 500 gf and over, HK Rockwell hardness No. Rockwell superficial...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... considered the practical range. Rockwell hardness testing is the most widely used method for determining hardness. There are several reasons for this distinction. The Rockwell test is simple to perform and does not require highly skilled operators. By use of different loads and indenters, Rockwell...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003114
EISBN: 978-1-62708-199-3
... and wear resistance but lowers toughness. As indicated in Table 3 , the hardness of tool steel is most commonly measured and reported on the Rockwell C scale (HRC). Hot hardness, the retention of high hardness at elevated temperature, is an important property for tool steels used for machining...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006254
EISBN: 978-1-62708-169-6
... alloys and the relationship between hardness and mechanical properties of the alloys. The article discusses the effects of elements such as aluminum, zinc, manganese, rare earths, and yttrium, on precipitation hardening. It describes the types of heat treatment for magnesium alloys, including annealing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003002
EISBN: 978-1-62708-200-6
... 2760–3445 400–500 0.21–0.27 0.4–0.5 Styrene-maleic anhydride (S/MA) 1.05–1.15 35–62 5–9 1.8–30 2275–3380 330–490 0.27–6.4 0.5–12 Material Hardness , Rockwell Deflection temperature under load (DTUL) Maximum service temperature (no load) Water absorption (ASTM D 570...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005324
EISBN: 978-1-62708-187-0
... ductile iron with an actual matrix hardness of Rockwell C 63 to 65 will indicate a hardness of 55 to 58. This effect presents no problem if it is recognized. The Brinell test is preferred for determining the hardness of ductile iron castings, and typical values for different matrix structures are listed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
.... The article describes testing methods such as room and high-temperature strength test methods, proof testing, fracture toughness measurement, and hardness and wear testing. It also explains methods for determining thermal expansion, thermal conductivity, heat capacity, and emissivity of ceramics and...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0005697
EISBN: 978-1-62708-181-8
... gigapascal h hour H height HAZ heat-affected zone HB Brinell hardness hcp hexagonal close-packed HK Knoop hardness HR Rockwell hardness (requires scale designation, such as HRC for Rockwell C hardness) HSLA high-strength low-alloy (steel) HV Vickers...
Book

Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.9781627081887
EISBN: 978-1-62708-188-7
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003107
EISBN: 978-1-62708-199-3
... flakes, because they disrupt the matrix to a lesser extent, are desired when maximum tensile properties and a fine, smooth surface finish are needed. When a wedge-shape bar with about 10° taper cast in a sand mold and sectioned near the center of its length, and Rockwell hardness determinations are...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.9781627081757
EISBN: 978-1-62708-175-7
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0005586
EISBN: 978-1-62708-170-2
... close-packed HCT high coiling temperature HDPE high-density polyethylene HERF high-energy-rate forming HIP hot isostatic pressing HK Knoop hardness hp horsepower HR Rockwell hardness (requires scale designation, such as HRC for Rockwell C hardness) HREM...