EN Standard
Each European Standard is identified by a unique reference code which contains the letters ‘EN’. A European Standard is a standard that has been adopted by one of the three recognized European Standardization Organizations (ESOs): CEN, CENELEC or ETSI. European Standards are a key component of the Single European Market.
List of EN standards
| EN steel number | EN steel name | SAE grade | UNS | DIN | BS 970 | UNI | JIS |
|---|---|---|---|---|---|---|---|
| Carbon steels | |||||||
| 1.1141 1.0401 1.0453 | C15D C18D | 1010 1018 | CK15 C15 C16.8 | 040A15 080M15 080A15 EN3B | C15 C16 1C15 | S12C S15 S15CK S15C | |
| 1.0503 1.1191 1.1193 1.1194 | C45 [5] | 1045 | C45 CK45 CF45 CQ45 | 060A47 080A46 080M46 | C45 1C45 C46 C43 | S45C S48C | |
| 1.0726 1.0727 | 35S20 45S20 | 1140/1146 | 35S20 45S20 | 212M40 En8M | |||
| 1.0715 1.0736 | 11SMn37 | 1215 | 9SMn28 9SMn36 | 230M07 En1A | CF9SMn28 CF9SMn36 | SUM 25 SUM 22 | |
| 1.0718 1.0737 | 11SMnPb30 11SMnPb37 | 12L14 | 9SMnPb28 9SMnPb36 | 230M07 Leaded En1B Leaded | CF9SMnPb29 CF9SMnPb36 | SUM 22 SUM 23 SUM 24 | |
| EN steel number | EN steel name | SAE grade | UNS | DIN | BS 970 | UNI | JIS |
|---|---|---|---|---|---|---|---|
| Alloy steels | |||||||
| 1.7218 | 4130 | 25CrMo4 GS-25CrMo4 | 708A30 CDS110 | 25CrMo4 (KB) 30CrMo4 | SCM 420 SCM 430 SCCrM1 | ||
| 1.7223 1.7225 1.7227 1.3563 | 42CrMo4 | 4140/4142 | 41CrMo4 42CrMo4 42CrMoS4 43CrMo4 | 708M40 708A42 709M40 En19 En19C | 41CrMo4 38CrMo4 (KB) G40 CrMo4 42CrMo4 | SCM 440 SCM 440H SNB 7 SCM 4M SCM 4 | |
| 1.6582 1.6562 | 34CrNiMo6 | 4340 | 34CrNiMo6 40NiCrMo8-4 | 817M40 En24 | 35NiCrMo6 (KB) 40NiCrMo7 (KB) | SNCM 447 SNB24-1-5 | |
| 1.6543 1.6523 | 20NiCrMo2-2 | 8620 | 21NiCrMo22 21NiCrMo2 | 805A20 805M20 | 20NiCrMo2 | SNCM 200 (H) | |
| EN Steel Number | EN Steel Name | SAE Grade | UNS | DIN | BS 970 | UNI | JIS |
|---|---|---|---|---|---|---|---|
| 1.4310 | X10CrNi18-8 | 301 | S30100 | - | - | - | - |
| 1.4305 | X8CrNiS18-9 | 303 | S30300 | X10CrNiS18-9 | 303S31 | X10CrNiS18-09 | SUS 303 |
| 1.4301 | X2CrNi19-11 | 304 | S30400 | X5CrNi18-10 | 304S15 | X5CrNi18-10 | SUS 304 |
| 1.4306 | X2CrNi19-11 | 304L | S30403 | - | 304S11 | - | SUS304L |
| 1.4401 | X5CrNiMo17-12-2 | 316 | S31600 | X5CrNiMo17-12-2 | 316S31 | X5CrNiMo17-12 | SUS 316 |
| 1.4404 | X2CrNiMo17-12-2 | 316L | S31603 | - | 316S11 | - | SUS316L |
| 1.4541 | X6CrNiTi18-10 | 321 | S32100 | X6CrNiTi18-10 | 321S31 | - | SUS321 |
| 1.4016 | X6Cr17 | 430 | S43000 | X6Cr17 | 430S17 | - | SUS430 |
| 1.4057 | X17CrNi16-2 | 431 | S43100 | X16CrNi16 | 431S29 | - | SUS431 |
| EN steel number | EN steel name | SAE grade | UNS | DIN | BS 970 | UNI | JIS |
|---|---|---|---|---|---|---|---|
| Tool steels | |||||||
| 1.2363 | X100CrMoV5 | A-2 | T30102[7] | X100CrMoV51 | BA 2 | X100CrMoV5-1 KU | SKD 12 |
| A-3 | T30103[8] | ||||||
| A-4 | T30104[9] | ||||||
| A-6 | T30106[10] | ||||||
| A-7 | T30107[11] | ||||||
| A-8 | T30108[12] | ||||||
| A-9 | T30109[13] | ||||||
| 1.2379 | X153CrMoV12 | D-2 | X153CrMoV12-1 | BD 2 | X155CrVMo12-1 | SKD 11 | |
| 1.2510 | O-1 | 100MnCrW4 | Bo 1 | 95MnWCr-5 KU | |||
Special Steel
- Carbon Steel Pipe
- ASTM A106 Grade B Pipe
- ASTM A53 Grade B Pipe
- ASTM A333 Grade 6 Pipe
- IS 4923 Steel Pipes
- ASTM A179 Pipe
- ASTM A192 Tube
- BS 3059 Boiler Tube
- SA 210 Boiler Tube
- DIN 2391 ST 52
- ASTM A671 Pipe
- ASTM A671 Grade CC60
- ASTM A671 Grade CC65
- ASTM A671 Grade CC70
- ASTM A672 Pipe
- ASTM A672 Grade C55
- ASTM A672 Grade C60
- ASTM A672 Grade C65
- ASTM A672 Grade C70