Formation of Fine and Coarse Grain Layer by Atmosphere Control in Case Hardening*

Abstract AISI 4320 is a nickel-chromium-molybdenum case hardening steel having high toughness and shock resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-80. Producer or source: Alloy steel mills and foundries.

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AISI 8615

Alloy Digest ◽

10.31399/asm.ad.sa0180 ◽

1965 ◽

Vol 14 (7) ◽

Keyword(s):

Fracture Toughness ◽

Alloy Steel ◽

Heat Treating ◽

Case Hardening ◽

Low Carbon ◽

Heavy Duty ◽

Core Strength ◽

Nickel Chromium ◽

Steel Mills ◽

Case Hardening Steel

Abstract AISI 8615 is a low-carbon, nickel-chromium-molybdenum alloy steel capable of producing high core strength and toughness. It is a case hardening steel recommended for heavy duty gears, cams, shafts, chains, fasteners, piston pins, etc. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-180. Producer or source: Alloy steel mills and foundries.

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UNS G61200

Alloy Digest ◽

10.31399/asm.ad.sa0458 ◽

1991 ◽

Vol 40 (4) ◽

Keyword(s):

Fracture Toughness ◽

High Temperature ◽

Heat Treating ◽

Case Hardening ◽

Steel Mills ◽

Temperature Performance ◽

Treated Condition ◽

Heat Treated ◽

High Fatigue ◽

Heat Treated Condition

Abstract UNS G62100 is a tough, shock resisting, case-hardening chromium-vanadium steel. It has high fatigue resistance in the heat treated condition. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low and high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-458. Producer or source: Alloy steel mills and foundries.

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LUCEFIN GROUP 20NiCrMo2-2(1.6523), 20NiCrMoS2-2 (1.6526)

Alloy Digest ◽

10.31399/asm.ad.sa0866 ◽

2020 ◽

Vol 69 (12) ◽

Keyword(s):

Wear Resistance ◽

Fatigue Strength ◽

Physical Properties ◽

Tensile Properties ◽

Heat Treating ◽

Medium Size ◽

Case Hardening ◽

Low Carbon ◽

High Fatigue

Abstract Lucefin Group 20NiCrMo2-2 and 20NiCrMoS2-2 are low-carbon, Ni-Cr-Mo, alloy case-hardening steels that are used in the carburized or carbonitrided, and subsequently quench hardened and tempered, condition. These steels are, in general, used for medium-size case-hardened parts requiring high fatigue strength and wear resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and joining. Filing Code: SA-866. Producer or source: Lucefin S.p.A..

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LUCEFIN GROUP 16MnCr5 (1.7131), 16MnCrS5 (1.7139)

Alloy Digest ◽

10.31399/asm.ad.sa0864 ◽

2020 ◽

Vol 69 (8) ◽

Keyword(s):

Wear Resistance ◽

Fatigue Strength ◽

Physical Properties ◽

Tensile Properties ◽

Heat Treating ◽

High Wear Resistance ◽

Medium Size ◽

Case Hardening ◽

Low Carbon

Abstract Lucefin Group 16MnCr5 and 16MnCrS5 are low-carbon, 1.2Mn-1Cr, alloy case-hardening steels that are used in the carburized or carbonitrided, and subsequently quench hardened and tempered condition. In general, these steels are used for small and medium size parts requiring high wear resistance and fatigue strength. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-864. Producer or Source: Lucefin S.p.A.

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