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Case hardening steels
Category · 60 grades

Case hardening steels

Case hardening steels are steels designed to develop a hard, wear-resistant surface while retaining a tough and ductile core. They are used for components such as gears, shafts and other machine parts exposed to contact wear and cyclic loading.

GradeMaterial no.CSiPSMnCr
C101.03010,07-0,13≤0,400,0450,0450,30-0,60
C10GPb1.03020,07-0,13≤0,400,0450,0450,30-0,60
1.04011.04010,12-0,18≤0,400,0450,0450,30-0,80
C15GPb1.04030,12-0,18≤0,400,0450,0450,30-0,80
C10D21.11140,08-0,12≤0,300,020,0250,30-0,50≤0,10
C10E1.11210,07-0,13≤0,400,0350,0350,30-0,60(≤0,40)
C15R1.11400,12-0,18≤0,400,0350,020-0,0400,30-0,60
1.11411.11410,12-0,18≤0,400,0350,0350,30-0,60
C16E1.11480,12-0,18≤0,400,0350,0350,60-0,90
C10R1.12070,07-0,13≤0,400,0350,020-0,0400,30-0,60
C16R1.12080,12-0,18≤0,400,0350,020-0,0400,60-0,90
19 Mn Cr 51.35230,17-0,22≤0,400,0250,0151,10-1,401,10-1,30
20MnV61.52170,16-0,220,10-0,500,0350,0351,30-1,70
16NiCr41.57140,13-0,19≤0,400,0250,0350,70-1,000,60-1,00
16NiCrS41.57150,13-0,19≤0,400,0250,020-0,0400,70-1,000,60-1,00
1.57321.57320,10-0,170,15-0,350,0350,0350,40-0,700,55-0,95
1.57521.57520,14-0,20≤0,400,0250,0350,40-0,700,60-0,90
1.57521.57520,14-0,20≤0,400,0250,0350,40-0,700,60-0,90
10NiCr5-41.58050,07-0,12≤0,400,0250,0350,60-0,900,90-1,20
18NiCr5-41.58100,16-0,21≤0,400,0250,0350,60-0,900,90-1,20
14NiCr181.58600,10-0,170,15-0,350,0350,0350,40-0,700,90-1,30
15CrNi61.59180,14-0,20≤0,400,0250,0350,50-0,901,40-1,70
15CrNi61.59190,12-0,18≤0,250,020,0150,40-0,701,35-1,65
18CrNi81.59200,15-0,200,15-0,400,0350,0350,40-0,601,80-2,10
20MnNiCrMo3-21.65220,17-0,23≤0,250,020,0150,70-1,000,40-0,60
1.65231.65230,17-0,23≤0,400,0250,0350,65-0,950,35-0,70
20NiCrMoS2-21.65260,17-0,23≤0,400,0250,020-0,0400,65-0,950,35-0,70
20NiCrMo31.65270,17-0,23≤0,250,020,0150,70-1,000,40-0,60
21 NiCrMo 2 21.65430,18-0,230,20-0,350,0350,0350,70-0,900,40-0,60
17NiCrMo6-41.65660,14-0,20≤0,400,0250,0350,60-0,900,80-1,10
17NiCrMoS6-41.65690,14-0,20≤0,400,0250,020-0,0400,60-0,900,80-1,10
20NiCrMoS6-41.65710,16-0,23≤0,400,0250,020-0,0400,50-0,900,60-0,90
1.65871.65870,15-0,21≤0,400,0250,0350,50-0,901,50-1,80
20NiCrMo14-51.67720,18-0,250,15-0,400,020,010,30-0,501,20-1,50
17CrS31.70140,14-0,20≤0,400,0250,020-0,0400,60-0,900,70-1,00
1.70151.70150,12-0,180,15-0,400,0350,0350,40-0,600,40-0,70
17Cr31.70160,14-0,20≤0,400,0250,0350,60-0,900,70-1,00
20Cr41.70270,17-0,23≤0,400,0250,0150,60-0,900,90-1,20
20CrS41.70280,17-0,23≤0,400,0350,020-0,0350,60-0,900,90-1,20
28CrS41.70360,24-0,31≤0,400,0250,020-0,0400,60-0,900,90-1,20
1.71311.71310,14-0,19≤0,400,0250,0351,00-1,300,80-1,10
16MnCrS51.71390,14-0,19≤0,400,0250,020-0,0401,00-1,300,80-1,10
20MnCr51.71470,17-0,22≤0,400,0250,0351,10-1,401,00-1,30
20MnCrS51.71490,17-0,22≤0,400,0250,020-0,0401,10-1,401,00-1,30
16MnCrB51.71600,14-0,19≤0,400,0250,0351,00-1,300,80-1,10
18CrMo41.72430,15-0,21≤0,400,0250,0350,60-0,900,90-1,20
18CrMoS41.72440,15-0,21≤0,400,0250,020-0,0400,60-0,900,90-1,20
1.72621.72620,13-0,170,15-0,350,0350,0350,80-1,101,00-1,30
20CrMo51.72640,18-0,230,15-0,350,0350,0350,90-1,201,10-1,40
23CrMoB3-31.72710,20-0,250,15-0,350,0350,0350,70-0,900,70-0,90

Standards covering this category

28

Property ranges

18
PropertyUnitMinMaxGrades
RmN/mm²320157020
ReN/mm²39013209
A%7206
A5%7199
Z%40557
KCUkJ/m²59011308
HB8526938
HRB73844
HV1352604
rhog/cm³7.637.8560
EGPa1292164
alpha10^-6/K1015.64
lambdaW/(m·K)19424
cpJ/(kg·K)4957063
Ac1°C7157506
Ac3°C7738506
Ar3°C6757554
Ar1°C6256654

Derived from 60 grades in this category with a recorded value.

Composition range

15
PropertyUnitMinMaxGrades
B%0.00080.0052
C%0.070.3160
N%0.0070.0124
O%0.0020.0022
Al%0.010.0511
Si%0.10.559
P%0.020.04560
S%0.010.0560
V%0.10.22
Cr%0.12.149
Mn%0.31.760
Ni%0.14.7522
Cu%0.150.36
Mo%0.050.524
Pb%0.150.352

Derived from 60 grades in this category with a recorded value.

Heat treatment

9
OperationMinTemperature (°C)MaxTemperature (°C)Grades
quenching78010508
tempering2007508
soft_annealing6
annealing9509506
carburizing6
quench_and_temper3
spheroidize_annealing3
normalizing9009603
solution_annealing1

Related guides

2