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AMS 6414 (low-alloy steel)

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320185
EISBN: 978-1-62708-347-8
... a design decision. Materials Selection Gear Design Feature General Conclusions Materials selection is one of the most important items for consideration to control gear cost. In general, high-alloy steels cost more than low-alloy steels. Vacuum-melted steels cost more than air- melted ones...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320159
EISBN: 978-1-62708-347-8
... is not desired or required. Dimensional growth is minimal during ion nitriding. The growth is dependent on the quantity of nitrogen deposited. High-alloy steels take up more nitrogen than those with a low-alloy content. Hence, there is more growth of high-alloy steel gears. In case of insufficiently annealed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320175
EISBN: 978-1-62708-347-8
... (a) Case Core 1040 … 2300/2304 54 30 Good 1050 … 2300/2304 54 30 Good 4140 6382 2300/2304 55 40 Good 4340 6414 2300/2304 55 40 Poor 5140 … 2300/2304 55 40 Poor Note: Alloy steels with 0.5% carbon and above are susceptible to cracking. (a) Compared...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250155
EISBN: 978-1-62708-345-4
... ranges from 32 to 48 HRC. Most steels used for through-hardened gears have medium carbon content (0.3 to 0.6%) and a relatively low alloy content (up to 3%). The purpose of alloying is to increase hardenability. The higher the hardenability, the deeper is the through hardening of gear teeth. Since...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320021
EISBN: 978-1-62708-347-8
... surface hardness. Typical gear tooth hardness after through hardening ranges from 32 to 48 HRC. Most steels that are used for through-hardened gears have medium carbon (0.3–0.6%) and a relatively low alloy content (up to 3%). The purpose of alloy content is to increase hardenability. The higher...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250249
EISBN: 978-1-62708-345-4
... 1040 ... 2300/2304 54 30 Good 1050 ... 2300/2304 54 30 Good 4140 6382 2300/2304 55 40 Good 4340 6414 2300/2304 55 40 Poor 5140 . . . 2300/2304 55 40 Poor Note: Alloy steels with 0.5% carbon and above are susceptible to cracking. (a) Compared with carburizing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250227
EISBN: 978-1-62708-345-4
... nitriding. The growth is dependent on the quantity of nitrogen deposited. High-alloy steels take up more nitrogen than those with a low-alloy content. Hence, there is more growth of high-alloy steel gears. In case of insufficiently annealed and normalized steels, the annealing effect of ion nitriding may...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320133
EISBN: 978-1-62708-347-8
... steels used in the United States fall in one of two groups: aluminum-containing Nitralloys and AISI low- or high-alloy steels. There is, however, a wide gap between the characteristics of these two groups of steels, which, in Europe, is filled by CrMo and CrMoV steels with 2.5 to 3.5% Cr. Chromium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320033
EISBN: 978-1-62708-347-8
... (0.040–0.060) 2 1.78–2.54 (0.070–0.100) 1 2.29–3.30 (0.090–0.130) Recommended case and core hardnesses at pitch line of low-alloy steel gears Table 5.4 Recommended case and core hardnesses at pitch line of low-alloy steel gears Application Surface hardness, HRC Core hardness...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250163
EISBN: 978-1-62708-345-4
... objective of carburizing and hardening gears is to secure a hard case and a relatively soft but tough core. For this process, low-carbon steels (up to a maximum of approximately 0.30% carbon), either with or without alloying elements (nickel, chromium, manganese, molybdenum), normally are used. After case...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7