| Carbon Steels | Free-Cutting Steels | Alloy Steels | Bearing Quality Steels | Boron Steels | Spring Steels | Low Carbon Steels |
|---|---|---|---|---|---|---|
| EN3B, EN32B, EN8, EN8A, EN8D, EN9, CK45, SAE1045H, SAE1018, SAE1015, SAE1010, 35C8, S38C, C50, etc. | EN1A-NL, EN8M, EN15AM, EN1A-L, SAE1215, SAE12L14, etc. | EN16, EN19, EN24, EN351, EN353, SAE8620, SAE4140, 16MnCr5, 20MnCr5, 15Cr3, SCM415, SCM420, SCM435, etc. | EN 31, AISI52100, etc. | 10B21, 15B21, 15B41, 15B25, etc. | EN45, EN45A, EN42, 60Si7, 65Si7, etc. | AISI1010, AISI1018, AISI1008, etc. |
| Internal Standard | |||||
|---|---|---|---|---|---|
| BS | DIN | IS | EN | SAE/AISI | |
| EN15B | 150M36 | 36Mn5 | 37Mn2, 37C15 | EN15B | 1536 |
| EN32B | - | CK15 | C14 | EN32B | 101,510,161,018 |
| 1038 | - | CK38 | - | - | 1038 |
| EN43C | - | - | C50 | EN43C | 1050 |
| CK45 | - | CK45 | 45C8 | 1045 | - |
| EN9 | 070M55 | CK55 | C55 | EN9 | 1055 |
| C35 | - | C35 | 35C8 , C35Mn75 | - | 1035 |
| EN42 | - | CK75 | 80C6 | EN42 | 1074 |
| EN42B | - | C67 | 65C6 | EN42B | 1065 |
| EN43 | 080M50 | C55 | 60C6 | EN43 | 1055 |
| EN43B | 080A47 | CK45 | - | EN43B | 1045 |
| EN8 | - | - | - | - | - |
| Internal Standard | |||||
|---|---|---|---|---|---|
| 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 |
| Internal Standard | ||||||
|---|---|---|---|---|---|---|
| BS | DIN | IS | EN | SAE/AISI | JIS | |
| EN15(AM) | 216M36 | - | 40Mn15S12 | ENI5(AM) | 1137 | - |
| EN1A | 220Mo7 | 9SMn28 | 11C10S25 | EN1A | 1213 | SUM22 |
| EN1APB | 220Mo7Pb | 9SMnPb36 | - | EN1APB | 12L14 | SUM24L |
| EN8M | 212M36 | - | 40C10S18 | EN8M | 1I46 | - |
| SAE1146 | - | - | 40C10S18 | EN8M | SAE1146 | - |
| 10C8S10 | - | - | 10C8S10 | - | 1108 | SUM12 |
| VS13113 | - | - | - | EN8M | - | - |
| Internal Standard | ||||
|---|---|---|---|---|
| DIN | IS | EN | SAE/AISI | |
| SAE1010 | CK10 | C10 | - | SAE1010 |
| SAE1018 | CK15 | C15Mn75 | EN32B, EN32C | SAE1018 |
| Internal Standard | ||||||
|---|---|---|---|---|---|---|
| DIN | BS | IS | EN | SAE/AISI | JIS | |
| 60Si7 | - | 60Si7 | 60Si7 | EN45A | - | - |
| SUP7 | - | 59Si7 | - | EN45A | 9260 | SUP7 |
| SUP12V | 685A57 | 54SiCr6 | - | - | 9254 | SUP12V |
| 55Si7 | - | 55Si7 | 55Si7 | EN45A | - | - |
| EN45 | 250A53 | 55Si7 | 55Si2Mn90 | EN45 | 9255 | - |
| EN45A | 250A58 | - | - | EN45A | 9260 | - |
| 50CrV4 | 735A51 | 50CrV4 | 50Cr4V2 | EN47 | 6150 | SUP10 |
| SUP11A | - | - | - | - | 51B60 | SUP11A |
| SUP9 | - | 55Cr5 | - | - | 5155 | SUP9 |
| Internal Standard | ||||||
|---|---|---|---|---|---|---|
| BS | DIN | IS | EN | SAE/AISI | JIS | |
| SAE52100 | 534A99/535A99 | 100Cr6 | 103Cr1 | EN31 | SAE52100 | SUJ 2 |
| EN31M | 534A99/535A99 | 100Cr6 | 103Cr1 | EN31M | SAE52100 | SUJ 2 |
| EN31 | 534A99/535A99 | 100Cr6 | 103Cr1 | EN31 | SAE52100 | SUJ 2 |