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Case-hardened fasteners

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Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001018
EISBN: 978-1-62708-161-0
... face. Light case carburizing or carbonitriding is often employed to improve mar resistance. When nuts are to be quenched and tempered, the steel must have the appropriate hardenability. Increasing the amounts of carbon and manganese or adding other alloying elements to provide increased...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006501
EISBN: 978-1-62708-207-5
... locking ring and ring-locked stud in a drilled and tapped hole of an aluminum casting Assembly of aluminum components can be done using threaded fasteners made out of aluminum alloys or other materials, such as carbon/alloy steels, austenitic stainless steels, and, in some cases, titanium alloys...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005863
EISBN: 978-1-62708-167-2
..., crankshafts, camshafts, axle shafts, transmission shafts, universal joints, gears, sprockets, pins, valve seats, steering knuckles, spindles, bearings, track links, connecting rods, fasteners, and many others. In some cases, it is desirable to harden an entire cross section of a component; however, other...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003323
EISBN: 978-1-62708-176-4
... in length. Alternative tests to determine the ability of a fastener to pass the proof-load test are the yield-strength test and the uniform hardness test. Although any of the alternative test methods described may be used, the proof-load test is the arbitration method used in case of any dispute. Method 1...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005810
EISBN: 978-1-62708-165-8
... 725 5 30–35 (c) Block 8620 11.13 0.438 132/kg 60/lb 290–315 550–600 30 50 (c) (a) Contains 0.65 to 0.75% C. (b) Leaded grade. (c) Case hardness Dimensional Control Due to the uniform, time-dependent bainitic transformation described earlier, parts can usually...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... As is the case with almost any failure analysis, a first step is to consider whether the component(s) at issue meet the design and manufacturing specifications. In the case of fasteners, this is especially important, because historically there have been instances of counterfeit fasteners. In the United States...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... more noble metals such as copper alloys. In this case, galvanic corrosion and the size effect are involved, as described below. For a structure to be well designed, the anode or corroding-metal area should be large relative to the cathode or protected metal in order to ensure reasonable anode life...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... to upset before open extrusion, unless there is a need to extrude the diameter immediately under the head. More information on specific case studies can be found in Ref 11 , Ref 12 , Ref 13 . The use of computers and simulation software for modeling cold-heading processes has increased...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005847
EISBN: 978-1-62708-167-2
... the part relative to the coil and quench. The progressive scanning process requires that the coil and quench be an integrated entity with the quench contacting the part immediately after heating. Scan hardening can be contrasted with single-shot heating in the case of circular parts. Single-shot...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005864
EISBN: 978-1-62708-167-2
... Abstract This article describes the common types of automotive and truck axle shafts. It provides information on steels used for induction-hardened shafts, and on the manufacturing and induction hardening methods of axle shafts. The article discusses the effects of case depth, shaft length...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005114
EISBN: 978-1-62708-186-3
.... In its extreme form, this surface relocation action results in seizure. A periodic visual examination of guide posts and bushings is recommended. In many cases, abrasive wear can be detected by the polished appearance of the surfaces, and corrective action can be initiated to prevent seizure...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003987
EISBN: 978-1-62708-185-6
... (0.122±0.003 in.) at the high point. Gage point (at 20.5° on open side) was 0.292±0.0127 mm (0.0115±0.0005 in.) below the high point on the cam. Ream holes to 4.81 to 4.84 mm (0.1895 to 0.1905 in.) diam. Case harden 0.020 mm (0.0008 in.) deep for wear-resistant surface (73 to 77 HR15-N). Wash...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004139
EISBN: 978-1-62708-184-9
... with internals constructed from bronze, stainless steel, and, in some cases, anodized aluminum. These metals are not galvanically compatible. They are not sealed and are susceptible to penetration by saltair and seawater. The inevitable result is corrosion and abrasive wear of critical internal parts...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
...-hardenability steels ( Ref 8 ). Another example of the complexity of the effect of manufacturing on residual stresses is shot peening. If peening intensity is too high, large tensile stresses can occur below the surface, which can cause problems in bending and torsion. Faulty Case Hardening Carburizing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... of the complexity of the effect of manufacturing on residual stresses is shot peening. If peening intensity is too high, large tensile stresses can occur below the surface, which can cause problems in bending and torsion. Faulty Case Hardening Carburizing, which both increases the surface hardness of a part...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.9781627081672
EISBN: 978-1-62708-167-2
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005842
EISBN: 978-1-62708-167-2
... that make it the material of choice for induction coils ( Ref 6 ). Coils for the hardening of complex-geometry parts typically are computer numerical control (CNC) machined from a solid copper bar, which makes them very rigid, durable, and repeatable. In other cases, a copper tube (rectangular or round...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005994
EISBN: 978-1-62708-168-9
... been developed and used for a wide range of automobile engines. Case A: TYT Group Fatigue strength, machinability, and work-hardening properties were investigated, and strengthening of the ferrite grain was performed by additions of vanadium. An addition of 0.25% V was effective for selective...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005959
EISBN: 978-1-62708-168-9
... diffusing species. This chapter gives a picture of the evolution of low-temperature surface hardening, followed by the physical metallurgy behind the case produced. Thereafter gaseous nitriding and nitrocarburizing of primarily austenitic and, to a lesser extent, other types of stainless steel are given...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... transformation of the nondecarburized area will reduce the favorable compressive stresses at the surface. In the worst case, the surface will be in tension up to the point of cracking. This is a more severe problem in steels with higher hardenability. Castings, forgings, cold-finished stock, and hot rolled...