
Heat resistant steel
| Japan | International | | | | Other countries | | |
| Type | | | U. | S.A. | Great Britain | Germany | France | Russia |
| | | | AISI | BS | DIN | NF | |
| JIS | ISO | UNS | SAE | BS/EN | DIN/EN | NF/EN | гOCT |
| SUH31 | | | | 331S42 | | Z35CNWS14-14 | 45X14H14B2M |
| SUH35 | | S63008 | | 349S52 | | Z52CMN21-09Az | |
| SUH36 | | | | 349S54 | X53CrMnNi21-9 | Z55CMN21-09Az | 55X20Г9 AH4 |
| SUH37 | | S63017 | | 381S34 | | | |
| Austenitic | SUH38 | | | | | | | |
| l | SUH309 | | S30900 | 309 | 309S24 | | Z15CN24-13 | |
| ee | SUH310 | | S31000 | 310 | 310S24 | CrNi2520 | Z15CN25-20 | 20X25H20C2 |
| st | SUH330 | | N08330 | N08330 | | | Z12NCS35-16 | |
| ant | SUH660 | | S66286 | | | | Z6NCTV25-20 | |
| st | SUH661 | | R30155 | | | | | |
| esi | SUH21 | | | | | CrAl1205 | | |
| Ferritic t r | SUH409 | X6CrTi12 | S40900 | 409 | 409S19 | X6CrTi12 | Z6CT12 | |
| ea | SUH409L | X2CrTi12 | | | | | Z3CT12 | |
| H | SUH446 | | S44600 | 446 | | | Z12C25 | 15X28 |
| SUH1 | | S65007 | | 401S45 | X45CrSi9-3 | Z45CS9 | |
| SUH3 | | | | | | Z40CSD10 | 40X10C2M |
| Martensitic | SUH4 | | | | 443S65 | | Z80CSN20-02 | |
| SUH11 | | | | | | | 40X9C2 |
| SUH600 | | | | | | | 20X12BHMБΦP |
| SUH616 | | S42200 | | | | | |
| Japan International | | | U.S.A. | | Japan International | | | U.S.A. |
| Type | | | | | Type | | | | |
| | | | AISI | | | | | AISI |
| JIS | ISO | | | | JIS | ISO | | |
| | | | ASTM | | | | | ASTM |
| SK140 | | − | | − | SKS5 | | − | | G − |
| SK120 | C120U | | W1-11 1/2 | | SKS51 | | − | L6 | |
| SK105 | C105U | | W1-10 | | SKS7 | | − | | − |
| SK95 | | − | W1-9 | | SKS81 | | − | | − |
| SK90 | C90U | | | − | SKS8 | | − | | − |
| Carbon tool SK85 | | − | W1-8 | | | | | | |
| | | | | SKS4 | | − | | − |
| steel SK80 | C80U | | | − | | | | | − |
| | | | | SKS41 | | − | | |
| SK75 | | − | | − | SKS43 | 105V | | W2-9 1/2 | H |
| SK70 | C70U | | | − | SKS44 | | − | W2-8 1/2 | |
| SK65 | | − | | − | SKS3 | | − | | − |
| SK60 | | − | | − | SKS31 | | − | | − |
| SKH2 | HS18-0-1 | | T1 | | SKS93 | | − | | − |
| SKH3 | | − | T4 | | SKS94 | | − | | − |
| SKH4 | | − | T5 | | SKS95 | | − | | − |
| SKH10 | | − | T15 | | Alloy tool | | | | I |
| | | | | SKD1 | X210Cr12 | | D3 | |
| SKH40 | HS6-5-3-8 | | | − | steel SKD2 | X210CrW12 | | | − |
| SKH50 | HS1-8-1 | | | − | SKD10 | X153CrMoV12 | | | − |
| SKH51 | HS6-5-2 | | M2 | | SKD11 | | − | D2 | |
| High speed SKH52 | HS6-6-2 | | M3-1 | | | | | | |
| | | | | SKD12 | X100CrMoV5 | | A2 | |
| steel SKH53 | HS6-5-3 | | M3-2 | | | | | | |
| | | | | SKD4 | | − | | − |
| SKH54 | HS6-5-4 | | M4 | | SKD5 | X30WCrV9-3 | | H21 | |
| SKH55 | HS6-5-2-5 | | | − | SKD6 | | − | H11 | J |
| SKH56 | | − | M36 | | SKD61 | X40CrMoV5-1 | | H13 | |
| SKH57 | HS10-4-3-10 | | | − | SKD62 | X35CrWMoV5 | | H12 | |
| SKH58 | HS2-9-2 | | M7 | | SKD7 | 32CrMoV12-28 | | H10 | |
| SKH59 | HS2-9-1-8 | | M42 | | SKD8 | 38CrCoWV18-17-17 | | H19 | |
| SKS11 | | − | F2 | | SKT3 | | − | | − |
| Alloy tool | | | | | | | | | |
| SKS2 | | − | | − | SKT4 | 55NiCrMoV7 | | | − |
| steel | | | | | | | | | |
| SKS21 | | − | | − | SKT6 | 45NiCrMo16 | | | K − |
Special use steel
| Type | JIS Japan | ISO International | AISI ASTM U.S.A. | Type | JIS Japan | ISO International | AISI ASTM U.S.A. |
| SUM11 SUM12 SUM21 SUM22 | − − 9S20 11SMn28 | 1110 1109 1212 1213 | Free cutting carbon steels | SUM32 SUM41 SUM42 SUM43 | − − − 44SMn28 | − 1137 1141 1144 |
| Free cutting carbon steels | SUM22L SUM23 SUM23L SUM24L SUM25 SUM31 SUM31L | 11SMnPb28 − − 11SMnPb28 12SMn35 − − | − 1215 − 12L14 − 1117 − | High carbon chromium | SUJ1 SUJ2 SUJ3 SUJ4 SUJ5 | − B1 B2 − − | − 52100 ASTM A 485 Grade 1 − − |
Note: The above chart is based on published data and not authorized by each manufacturer.