Alloy Steels

Internal Standard
Equivalent Grades
BS
DIN
IS
EN
SAE/AISI
EN18
530A40
37Cr4
40Cr1
EN18
5140
EN24
817M40
34CrNiMo6
40NiCr4Mo3
EN24
4340
EN19C
709M40
-
40Cr4Mo3
EN19C
4140, 4142
EN19
709M40
-
40Cr4Mo3
EN19
4140, 4142
EN18D
530A40
37Cr4
40Cr1
EN18D
5140
EN18C
530A40
37Cr4
40Cr1
EN18C
5140
EN18A
530A40
37Cr4
40Cr1
EN18A
5140
27C15
-
28Mn6
27C15
-
1527
20MnCr5
-
20MnCr5
20MnCr1
-
-
20Mn2
150M28
-
20Mn2
EN14A
1524
16MnCr5
-
16MnCr5
17Mn1Cr95
-
5120
FILESTEEL
-
-
-
-
-
EN18B
530A40
37Cr4
40Cr1
EN18B
5140
SAE8620
805M20
-
20NiCrMo2
EN362
8620
SAE8622
805M20
-
20Ni2Cr2Mo2
-
8622

        EN353

815M17
-
15NiCr1Mo12
EN353
-

       EN354

820M17
-
15NIVCr1Mo15
EN354
4320
     15Cr3
523A14
15Cr3
15Cr65
EN206
5015
    EN24
817M40
34CrNiMo6
40NiCr4Mo3
EN24
4340
    17Cr3
-
17Cr3
-
-
-
    40Cr4
41Cr4
41Cr4
40Cr4
En18D
5140
     34Cr4
34Cr4
34Cr4
-
En18
5130

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