156 of 156 grades
Each result shows its source type and validation status. Commercial correspondences must be verified before material substitution.
Complete steel equivalence table
Complete reference of 156 steel grades and their 961 equivalent designations across 11 international standardization systems: AISI/SAE, ASTM/ASME, EN, DIN, W.Nr., UNE, JIS, NF, UNI, BS and Griñón. Each row shows a steel grade and its cross-standard correspondences. Use the search above to filter by standard, family or designation.
Carbon steels (8 grades)
| Grade | AISI/SAE | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|
| ASTM A105 | ASTM A105 | — | C22.8 | 1.0460 | — | — | — | — | A-105 |
| S355 | — | S355 | St 52-3 | 1.0045 | AE355 | SM490A | E36-2 | FE510 | ST-52 |
| SAE 1015 | SAE 1015 | C15E | CK15 | 1.1141 | F1110 | S15C | XC15 | C15 | F111 |
| SAE 1026 | SAE 1026 | C25E | CK25 | 1.1158 | F1120 | S25C | XC25 | C25 | F112 |
| SAE 1030 | SAE 1030 | C30E | CK30 | 1.1178 | F1130 | S30C | XC32 | C30 | F113 |
| SAE 1045 | SAE 1045 | C45E | CK45 | 1.1191 | F1140 | S45C | XC45 | C45 | F114 |
| SAE 1055 | SAE 1055 | C55E | CK55 | 1.1203 | F1150 | S55C | XC55 | C55 | F115 |
| SAE 1060 | SAE 1060 | C60E | CK60 | 1.1221 | — | S58C | XC60 | C60 | C60 |
Boron alloy steels (2 grades)
| Grade | DIN | W.Nr. | NF | UNI | Griñón |
|---|---|---|---|---|---|
| 22B2 | 22B2 | 1.5508 | 22B2 | C21BKB | F-1291 |
| 35B2 | 35B2 | 1.5511 | — | C35BKB | F-1295 |
Quenched & tempered alloy steels (22 grades)
| Grade | AISI/SAE | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|
| 25CrMo4 | — | 25CrMo4 | 25CrMo4 | 1.7218 | F222 | SCM425 | 25CD4 | 25CrMo4 | 25CrMo4 |
| 27MnCrB5.2 | — | 27MnCrB5.2 | 27MnCrB5-2 | 1.7182 | — | — | — | — | 27MnCrB5 |
| 28Mn6 | 1330 | 28Mn6 | 28Mn6 | 1.1170 | 28Mn6 | SMn433 | 28Mn6 | 28Mn6 | 28Mn6 |
| 30CrNiMo8 | — | 30CrNiMo8 | 30CrNiMo8 | 1.6580 | 30CrNiMo8 | — | 30CND8 | 30CrNiMo8 | 30CrNiMo8 |
| 34CrNiMo6 | — | 34CrNiMo6 | 34CrNiMo6 | 1.6582 | 34CrNiMo6 | — | 35NCD6 | 34CrNiMo6 | F127 |
| 36NiCrMo16 | — | 36NiCrMo16 | 36NiCrMo16 | 1.6773 | F1260 | — | 35NCD16 | 35NiCrMo15 | F126 |
| 38Cr2 | — | 38Cr2 | 38Cr2 | 1.7003 | F1200 | — | 38C2 | 38Cr2 | 38Cr2 |
| 39MnCrB6.2 | — | 39MnCrB6.2 | 39MnCrB6-2 | 1.7189 | — | — | — | — | 39MnCrB6 |
| 39NiCrMo3 | — | — | 39NiCrMo3 | 1.6510 | — | — | — | 40NiCrMo4 | F-1282 |
| 40NiCrMo6 | 4340 (mod.) | — | 40NiCrMo6 | 1.6565 | — | — | — | — | F-1272 |
| 46Cr2 | — | 46Cr2 | 46Cr2 | 1.7006 | — | — | 46C2 | 46Cr2 | 46Cr2 |
| F128 | — | — | — | — | F1282 | — | — | 39NiCrMo5 | F128 |
| SAE 15B21H | SAE 15B21H | 20MnB5 | — | 1.5530 | F1293 | SWRCHB620 | 20MB5 | 20MnB5 | 20MnB5 |
| SAE 15B28H | SAE 15B28H | 30MnB5 | — | 1.5531 | — | — | — | 30MnB5 | 30MnB5 |
| SAE 15B41H | SAE 15B41H | 38MnB5 | 38MnB5 | 1.5532 | — | SWRCHB737 | 38MB5 | — | 38MnB5 |
| SAE 4135 | SAE 4135 | 34CrMo4 | 34CrMo4 | 1.7220 | F1250 | SCM435 | 34CD4 | 35CrMo4 | 34CrMo4 |
| SAE 4140 | SAE 4140 | 42CrMo4 | 42CrMo4 | 1.7225 | F1252 | SCM440 | 42CD4 | 42CrMo4 | F125 |
| SAE 4340 | SAE 4340 | 40NiCrMo8-4 | 40NiCrMo8-4 | 1.6562 | F1272 | SNCM439 | — | 40NiCrMo7 | F1272 |
| SAE 5132 | SAE 5132 | 34Cr4 | 34Cr4 | 1.7033 | — | SCr430 | 32C4 | 34Cr4 | 34Cr4 |
| SAE 5135 | SAE 5135 | 37Cr4 | 37Cr4 | 1.7034 | F1201 | SCr435 | 38C4 | 38Cr4 | 37Cr4 |
| SAE 5140 | SAE 5140 | 41Cr4 | 41Cr4 | 1.7035 | F1202 | SCr440 | 42C4 | 41Cr4 | 41Cr4 |
| SAE 6150 | SAE 6150 | 51CrV4 | 50CrV4 | 1.8159 | F1430 | SUP10 | 50CV4 | — | F143 |
Free-machining steels (19 grades)
| Grade | AISI/SAE | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|
| 10S20 | — | 10S20 | 10S20 | 1.0721 | F2121 | — | 12MF4 | CF10S20 | 10S20 |
| 10SPb20 | — | 10SPb20 | 10SPb20 | 1.0722 | F2122 | — | — | CF10SPb20 | 10SPb20 |
| 35S20 | — | 35S20 | 35S20 | 1.0726 | — | — | 35MF4 | — | 35S20 |
| 35SPb20 | — | 35SPb20 | 35SPb20 | 1.0756 | — | — | — | — | 35SPb20 |
| 46S20 | — | 46S20 | 45S20 | 1.0727 | — | — | 45MF4 | — | 45S20 |
| 46SPb20 | — | 46SPb20 | 45SPb20 | 1.0757 | — | — | — | — | 45SPb20 |
| 60S20 | — | — | 60S20 | 1.0728 | — | — | — | — | 60S20 |
| 60SPb20 | — | — | 60SPb20 | 1.0758 | — | — | — | — | 60SPb20 |
| C45Pb | — | — | C45Pb | 1.0504 | — | — | — | — | F114PB |
| FORAL | — | — | — | — | — | — | — | — | FORAL |
| SAE 1115 | SAE 1115 | 15SMn13 | 15S10 | 1.0725 | — | SUM31 | 13MF4 | — | 15SMn13 |
| SAE 1137 | SAE 1137 | 36SMnPb14, 36SMn14 | — | — | F2132 | — | 35MF6Pb | CF35SMnPb10 | 36SMnPb11 |
| SAE 11L37 | SAE 11L37 | 36SMnPb14 | — | — | — | — | — | — | — |
| SAE 11L44 | SAE 11L44 | 44SMn28 | 44SMn28 | 1.0762 | F2133 | SUM 43 | 45MF6.3 | CF44SMn28 | 44SMn28 |
| SAE 11L44 | SAE 11L44 | 44SMnPb28 | 44SMnPb28 | 1.0763 | — | SUM 43 | 44SMnPb28 | CF44SMnPb28 | 44SMnPb28 |
| SAE 1213 | SAE 1213 | 11SMn30 | 9SMn28 | 1.0715 | F2111 | SUM22 | S250 | CF9SMn28 | F211 |
| SAE 1215 | SAE 1215 | 11SMn37 | 9SMn36 | 1.0736 | F2113 | SUM25 | S300 | CF9SMn36 | F211 |
| SAE 12L13 | SAE 12L13 | 11SMnPB30 | 9SMnPb28 | 1.0718 | F2112 | SUM22L | S250Pb | CF9SMnPb28 | F212 |
| SAE 12L14 | SAE 12L14 | 11SMnPb37 | 9SMnPb36 | 1.0737 | F2114 | SUM24L | S300Pb | CF9SMnPb36 | F212 |
Hot-work tool steels (9 grades)
| Grade | AISI/SAE | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|
| 420 | A-420 | — | X42Cr13 | 1.2083 | F3404 | SUS420J2 | X40Cr14 | 740C14 | 1.2083 |
| 6F7 | 6437 E ASTM | 45NiCrMo16 | X45NiCrMo4 | 1.2767 | F5305 | — | 40NiCrMoV16 | 40NiCrMoV16KU | 1.2767 |
| H10 | H10 | 32CrMoV12-28 | X32CrMoV3.3 | 1.2365 | F5313 | SKD-7 | 32CrMoV12-28 | X30CrMoV1227KU | 1.2365 |
| H11 | 6437E ASTM | X38CrMoV5.1 | X38CrMoV5.1 | 1.2343 | F5317 | SKD-6 | X38CrMoV5 | X37CrMoV51KU | 1.2343 |
| H13 | 6408A ASTM | X40CrMoV511 | X40CrMoV5.1 | 1.2344 | F5318 | SKD-61 | X40CrMoV5 | X40CrMoV5.11KU | 1.2344 |
| L6 | L6 | — | 56NiCrMoV7 | 1.2714 | F5307 | SKT4 | 55NiCrMoV7 | 55NiCrMoV7KU | 1.2714 |
| P20 | — | 40CrMnMo7 | 40CrMnMo7 | 1.2311 | F5303 | — | — | 35CrMo8KU | 1.2311 |
| P20+Ni | 4130-35i | 40CrMnNiMo8.6.4 | 40CrMnNiMo8.6.4 | 1.2738 | — | — | — | — | 1.2738 |
| P20+S | — | 40CrMnMoS8.6 | 40CrMnMoS8.6 | 1.2312 | F5302 | — | — | — | 1.2312 |
Cold-work tool steels (7 grades)
| Grade | AISI/SAE | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|
| A681(D3)ASTM | A681(D3)ASTM | X210Cr12 | X210Cr12 | 1.2080 | F5212 | SKD-1 | X200Cr12 | UX210Cr13KU | 1.2080 |
| A681(O1)ASTM | A681(O1)ASTM | 95MnWCr5 | 100MnCrW4 | 1.2510 | F5220 | SKS-3 | 90MnWCrv5 | U95MnWCr5KU | 1.2510 |
| A681(O2)ASTM | A681(O2)ASTM | 90MNCrV8 | 90MnCrV8 | 1.2842 | F5229 | — | 90MnV8 | U88MnV8KU | 1.2842 |
| D2 | A681(D2)ASTM | X160CrMoV12-1 | X155CrVMo12-1 | 1.2379 | F5211 | SKD11 | X160CrMoV12 | UX155CrVMo12-1KU | 1.2379 |
| F1 | F1 | — | 120W4 | 1.2516 | F5238 | — | — | U115W4KU | 1.2516 |
| S1 | S1 | 55WCrV8 | 60WCrV8 | 1.2550 | F5242 | SKS-41 | 45WCrV8 | U55WCr8KU | 1.2550 |
| S5 | S5 | — | 58SiCr8 | 1.2103 | F5247 | — | — | U58SiMoKU+V | 1.2103 |
Structural steels (14 grades)
| Grade | ASTM/ASME | EN | DIN | W.Nr. | UNE | NF | UNI | BS |
|---|---|---|---|---|---|---|---|---|
| E295 | — | E295, S295 | St 50-2 | — | A 490 | A 50-2 | Fe 490 | — |
| E335 | — | E335, S335 | St 60-2 | — | A 590 | A 60-2 | Fe 590 | — |
| E360 | — | E360, S360 | St 70-2 | — | A 690 | A 70-2 | Fe 690 | — |
| S185 | — | S185 | St 33 | — | A 310-0 | A 33 | Fe 320 | — |
| S235J0 | — | S235J0 | St 37-3 U | — | AE 235 C | E 24-3 | Fe 360 C | 40 C |
| S235J2+N | — | S235J2+N, S235J2G3 | St 37-3N | — | AE 235 D | E 24-4 | Fe 360 D | 40 D |
| S235JR | — | S235JR, S235JRG2 | St 37-2 | 1.0038 | AE 235 B-FN | E 24-2 | Fe 360 B | 40 B |
| S275J0 | A 283-D | S275J0 | St 44-3 U | — | AE 275 C | E 28-3 | Fe 430 C | 43 C |
| S275J2+N | — | S275J2+N, S275J2G3 | St 44-3 N | — | AE 275 D | E 28-4 | Fe 430 D | 43 D |
| S275JR | A36 | S275JR | St 44-2 | — | AE 275 B | E 28-2 | Fe 430 B | 43 B |
| S355J0 | A 633-C | S355J0 | St 52-3 U | — | AE 355 C | E 36-3 | Fe 510 C | 50 C |
| S355J2+N | A 633-D | S355J2+N, S355J2G3 | St 52-3 N | — | AE 355 D | E 36-4 | Fe 510 D | 50 D |
| S355JR | A 572-50 | S355JR | — | — | AE 355 B | E 36-2 | Fe 510 B | 50 B |
| S355K2+N | — | S355K2+N, S355K2 | — | — | — | — | — | 50 DD |
Stainless steels (9 grades)
| Grade | AISI/SAE | EN | W.Nr. | UNE | JIS | Griñón |
|---|---|---|---|---|---|---|
| 304 | 304 | X5CrNi1810 | 1.4301 | F3504 | SUS304 | INOX 304 |
| 310S | 310S | X8CrNi25-21 | 1.4845 | — | SUS310S | X8CrNi25-21 |
| 316 | 316 | X5CrNiMo17122 | 1.4401 | F3534 | SUS316 | INOX 316 |
| 420 | 420 | X20Cr13 | 1.4021 | — | SUS420J1 | INOX 420 |
| 431 | 431 | X17CrNi16-2 | 1.4057 | — | SUS431 | INOX 431 |
| X12Cr13 | AISI 410 | X12Cr13 | 1.4006 | — | SUS410 | X12Cr13 |
| X39Cr13 | — | X39Cr13 | 1.4031 | — | — | X39Cr13 |
| X4CrNi18-12 | AISI 305 | X4CrNi18-12 | 1.4303 | — | SUS305 | X4CrNi18-12 |
| X80CrSiNi20 | — | X80CrSiNi20 | 1.4747 | — | — | X80CrSiNi20 |
Case-hardening steels (20 grades)
| Grade | AISI/SAE | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|
| 14NiCrMo13-4 | 9310 | — | 14NiCrMo13-4 | 1.6657 | F1560 | SNCM815 | 16NCD13 | 15NiCrMo13 | F-1560 |
| 15CrMo5 | — | — | 15CrMo5 | 1.7262 | F1551 | SCM21 | 12CD4FF | — | 12CrMo4 |
| 16NiCr4 | — | 16NiCr4 | 16NiCr4 | 1.5714 | F1581 | — | 16NiCr4 | 16NiCr4 | F158 |
| 17CrNi6-6 | — | 17CrNi6-6 | 15CrNi6 | 1.5918 | — | — | — | — | 17CrNi6 |
| 17NiCrMo6-4 | — | 17NiCrMo6-4 | 17NiCrMo6-4 | 1.6566 | — | — | 18NCD6 | 18NiCrMo5 | 17NiCrMo6 |
| 18CrMo4 | — | 18CrMo4 | 18CrMo4 | 1.7242 | F1550 | SCM418 | 18CD4 | 18CrMo4 | F155 |
| 18CrNiMo7-6 | — | 18CrNiMo7-6 | 17CrNiMo6 | 1.6587 | — | — | 18CrNiMo7-6 | — | 18CrNiMo7 |
| 18NiCr5-4 | — | 18NiCr5-4 | 18NiCr5-4 | 1.5810 | F1580 | — | 20NC6 | — | 18NiCr5 |
| 20Cr4 | — | — | 20Cr4 | 1.7027 | — | SCr420 | — | — | 20Cr4 |
| 20MoCr3 | — | 20MoCr3 | 20MoCr3 | 1.7320 | — | — | 20MoCr3 | — | 20MoCr3 |
| 4118 | 4118 | 20MoCr4 | 20MoCr4 | 1.7321 | F1523 | SCM415 | 20MoCr4 | — | 20MoCr4 |
| SAE 1010 | SAE 1010 | C10E | CK10 | 1.1121 | F1510 | S10C | XC10 | C10 | F151 |
| SAE 1015 | SAE 1015 | C15E | CK15 | 1.1141 | F1511 | S15C | XC12 | C15 | C15 |
| SAE 1016 | SAE 1016 | C16E | C16E | 1.1148 | — | — | XC18 | — | C16 |
| SAE 1024 | SAE 1024 | — | 20Mn5 | 1.1133 | F1515 | SMn420 | 20M5 | G22Mn3 | 20Mn6 |
| SAE 3415 | SAE 3415 | — | 14NiCr10 | 1.5732 | F1540 | SNC21 | 14NC11 | 16NiCr11 | F154 |
| SAE 5115 | SAE 5115 | 16MnCr5 | 16MnCr5 | 1.7131 | F1516 | — | 16MC5 | 16MnCr5 | 16MnCr5 |
| SAE 5117 | SAE 5117 | 17Cr3 | 17Cr3 | 1.7016 | — | — | 18C3 | — | 17Cr3 |
| SAE 5120 | SAE 5120 | 20MnCr5 | 20MnCr5 | 1.7147 | F150.D | SMnC21H | 20MC5 | 20MnCr5 | 20MnCr5 |
| SAE 8620 | SAE 8620 | 20NiCrMo2-2 | 20NiCrMo2-2 | 1.6523 | F1522 | SNCM220 | 20NCD2 | 20NiCrMo2 | F1522 |
Spring steels (12 grades)
| Grade | AISI/SAE | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|
| 38Si7 | — | — | 38Si7 | 1.5023 | — | — | 38S7 | — | 38Si7 |
| 46Si7 | — | — | 46Si7 | 1.5024 | F1451 | — | 46S7 | 48Si7 | 46Si7 |
| 46SiCrMo6 | — | — | 46SiCrMo6 | 1.8062 | — | — | 45SCD6 | 45SiCrMo6 | 46SiCrMo6 |
| 51CrMoV4 | — | — | 51CrMoV4 | 1.7701 | F1460 | — | 51CDV4 | 51CrMoV4 | 51CrMoV4 |
| SAE 5155 | SAE 5155 | — | 55Cr3 | 1.7176 | F1431 | SUP 9 | 55C3 | 55Cr3 | 55Cr3 |
| SAE 6150 | SAE 6150 | 51CrV4 | 50CrV4 | 1.8159 | F1430 | SUP10 | 50CV4 | — | F143 |
| SAE 9250 | SAE 9250 | — | 51Si7 | 1.5025 | F1450 | — | 51S7 | 50Si7 | 51Si7 |
| SAE 9254 | SAE 9254 | — | 54SiCr6 | 1.7102 | — | SUP 12 | 54SC6 | 54SiCr6 | 54SiCr6 |
| SAE 9255 | SAE 9255 | — | 55Si7 | 1.5026 | F1440 | — | 55S7 | 55Si7 | 55Si7 |
| SAE 9260 | SAE 9260 | — | 60Si7 | 1.5027 | F1441 | SUP7 | 60S7 | 60Si7 | 60Si7 |
| SAE 9261 | SAE 9261 | — | 55SiCr7 | 1.7106 | — | — | 56SC7 | 55SiCr7 | 55SiCr7 |
| SAE 9262 | SAE 9262 | — | 60SiCr7 | 1.7108 | F1442 | — | 61SC7 | 60SiCr8 | 60SiCr7 |
Nitriding steels (7 grades)
| Grade | AISI/SAE | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|
| 15CrMoV5-9 | — | 15CrMoV5-9 | 1.8521 | — | — | — | — | 15CrMoV5-9 |
| 25CrMo12 | — | 25CrMo12 | — | F1711 | — | — | — | 25CrMo12 |
| 31CrMo12 | — | 31CrMo12 | 1.8515 | F1712 | — | 30CD12 | 31CrMo12 | F171 |
| 31CrMoV9 | — | 31CrMoV9 | 1.8519 | F1721 | — | — | 31CrMoV10 | F172 |
| 34CrAlMo5 | — | 34CrAlMo5 | 1.8507 | F1741 | — | — | — | 34CrAlMo5 |
| 34CrAlNi7 | — | 34CrAlNi7 | 1.8550 | — | — | — | — | 34CrAlNi7 |
| 41CrAlMo7 | A 355 Cl.A | 41CrAlMo7 | 1.8509 | F1740 | SACM645 | 40CAD6-12 | 41CrAlMo7 | F174 |
Pressure vessel & boiler steels (19 grades)
| Grade | ASTM/ASME | EN | DIN | W.Nr. | JIS |
|---|---|---|---|---|---|
| 10CrMo9-10 | A387-22 | 10CrMo9-10 | 10CrMo910 | 1.7380 | — |
| 13CrMo4-5 | A387 Gr.12 Cl.2 | 13CrMo4-5 | 13CrMo44 | 1.7335 | — |
| 16Mo3 | A204-B | 16Mo3 | 15Mo3 | 1.5415 | — |
| P235GH | A285 gr.C / A414-C | P235GH | HI (DIN 17155) | 1.0345 | SPV 24 |
| P265GH | A414 gr.E | P265GH | HII (DIN 17155) | 1.0425 | — |
| P275NH | — | P275NH, 1.0487 | — | — | — |
| P275NL1 | — | P275NL1, 1.0488 | — | — | — |
| P275NL2 | — | P275NL2, 1.1104 | — | — | — |
| P295GH | A299 / A414 gr.F | P295GH | 17Mn4 | 1.0481 | — |
| P355GH | A414 gr.G, A/SA 516 Gr.70 (+N) | P355GH | 19Mn6 | 1.0473 | SPV 36 |
| P355N | A737 gr.B | P355N, 1.0562 | — | — | — |
| P355NH | A737 gr.B | P355NH, 1.0565 | — | — | — |
| P355NL1 | — | P355NL1, 1.0566 | — | — | — |
| P355NL2 | — | P355NL2, 1.1106 | — | — | — |
| P460NH | A737 gr.C | P460NH, 1.8935 | — | — | — |
| P460NL1 | — | P460NL1, 1.8915 | — | — | — |
| P460NL2 | — | P460NL2, 1.8918 | — | — | — |
| PR-019 | A/SA 516 Gr.60 (+N) | P265GH / P275 | — | — | — |
| S235JR | A/SA 283 Gr.C | S235JR | St 37-2 | 1.0038 | — |
Bearing steels (4 grades)
| Grade | AISI/SAE | ASTM/ASME | EN | DIN | W.Nr. | UNE | JIS | NF | UNI | Griñón |
|---|---|---|---|---|---|---|---|---|---|---|
| 100CrMo7 | — | — | 100CrMo7 | 100CrMo7 | 1.3537 | F1313 | SUJ4 | 100CrMo7.2 | 100CrMo7 | 100CrMo7 |
| 100CrMo7-3 | — | A485(3) | 100CrMo7-3 | 100CrMo7-3 | 1.3536 | F1314 | — | 100CrMo8.3 | — | 100CrMo7-3 |
| 52100 | 52100 | — | 100Cr6 | 100Cr6 | 1.3505 | F1310 | SUJ2 | 100Cr6 | 100Cr6 | F131 |
| A485(2)ASTM | A485(2)ASTM | — | 100CrMn6 | 100CrMn6 | 1.3520 | F1312 | SUJ3 | 100CrMn6 | — | 100CrMn6 |
High-speed steels (HSS) (4 grades)
| Grade | AISI/SAE | DIN | W.Nr. | NF | UNI | Griñón |
|---|---|---|---|---|---|---|
| S 18-0-1 | T1 | S 18-0-1 | 1.3355 | Z80WCV18-04-01 | HS 18-01 | F-5520 |
| S 2-10-1-8 | M42 | S 2-10-1-8 | 1.3247 | Z110DKCWV09-08-04-02-01 | HS 2-9-1-8 | F-5617 |
| S 6-5-2 | M2 | S 6-5-2 | 1.3343 | Z85WDCV06-05-04-02 | HS 6-5-2 | F-5603 |
| S 6-5-3 | M3 | S 6-5-3 | 1.3344 | Z120WDCV06-05-04-03 | HS 6-5-3 | F-5605 |
Correspondences are for reference only and must be validated against the applicable specification before material substitution.
Frequently asked questions about steel equivalences
- What is the European equivalent of SAE 4340 steel?
- SAE 4340 (AISI 4340) is a Ni-Cr-Mo alloy steel for quenching and tempering. Its most cited correspondences are EN 40NiCrMo7, DIN 40NiCrMo8-4, W.Nr. 1.6562 and JIS SNCM439. There is a documented discrepancy between sources over the exact Werkstoffnummer: some references point to 34CrNiMo6 (1.6582), whose Ni and C content differs slightly from 4340. Always verify against EN 10083-3 before substituting the material.
- Are steel equivalences exact and interchangeable?
- Not necessarily. Two steels considered equivalent have similar composition and mechanical properties, but rarely identical ones. Composition ranges, heat treatments and tolerances vary between national standards. The correspondences in this tool are for reference only and must be validated against the applicable specification (EN, DIN, ASTM, JIS) and with an engineer before substituting a material in a critical part.
- What is a steel Werkstoffnummer (W.Nr.)?
- The Werkstoffnummer, or W.Nr. material number, is the German/European numeric material identification system (for example 1.6582). The first digit indicates the material group (1 = steel), and the following digits encode the family and a sequence. It is used alongside the EN designation and is defined in EN 10027-2. It is one of the most precise ways to identify a steel grade unambiguously across countries.
- How do I convert an AISI/SAE designation to DIN or EN?
- Enter the AISI/SAE code (for example 4340, 1045 or 4140) into the search box and you'll get its equivalent designations in DIN, EN, W.Nr., UNE, JIS and other systems, along with the steel family and the validation status of each correspondence. You can also search by the W.Nr. number (1.XXXX), by the EN/DIN name, or filter by standardization system.
- Why do some sources disagree on a steel's equivalence?
- Equivalences between standards are not always one-to-one: different commercial catalogs and standards may assign slightly different correspondences depending on the criterion (chemical composition, mechanical properties or application). When we detect that sources disagree, we flag the grade as a source discrepancy and show the comparison of each reference so you can make an informed decision.