EN 10083-2 – Rockwell C Hardness (HRC) with normal hardenability requirements (+H)

EN 10083-2 – Rockwell C Hardness (HRC) with normal hardenability requirements (+H)

Steel description Symbol Interval boundaries Distance in mm from the quenched end
Symbolic Numeric 1 2 3 4 5 6 7 8 9 10 11 13 15 20 25 30
C35E 1.1181 + H máx 58 57 55 53 49 41 34 31 28 27 26 25 24
C35R 1.1180 mín 48 40 33 24 22 20
C40E 1.1186 + H máx 60 60 59 57 53 47 39 34 31 30 29 28 27
C40R 1.1189 mín 51 46 35 27 25 24 23 22 21 20
C45E 1.1191 + H máx 62 61 61 60 57 51 44 37 34 33 32 31 30
C45R 1.1201 mín 55 51 37 30 28 27 26 25 24 23 22 21 20
C50E 1.1206 + H máx 63 62 61 60 58 55 50 43 36 35 34 33 32 31 29 28
C50R 1.1241 mín 56 53 44 34 31 30 30 29 28 27 26 25 24 23 20
C55E 1.1203 + H máx 65 64 63 62 60 57 52 45 37 36 35 34 33 32 30 29
C55R 1.1209 mín 58 55 47 37 33 32 31 30 29 28 27 26 25 24 22 20
C60E 1.1221 + H máx 67 66 65 63 62 59 54 47 39 37 36 35 34 33 31 30
C60R 1.1223 mín 60 57 50 39 35 33 32 31 30 29 28 27 26 25 23 21
1,5 3 5 7 9 11 13 15 20 25 30 35 40 45 50
28Mn6 1.1170 +H máx 54 53 51 48 44 41 38 35 31 29 27 26 25 25 24
mín 45 42 37 27 21

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Chemical composition

MECHANICAL PROPERTIES: LE, RM AND A

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EN 10083-2 - Ability to shear (+S) or annealing (+A)

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