| Category | Steel grade | Standard | Country | Application |
|---|---|---|---|---|
| Special Alloy | SUS445J1② | JIS | Japan | ferritic stainless steel |
| Special Alloy | SUS444 | |||
| Special Alloy | SUS436J1L | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS436L | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS430J1L② | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS430LX | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS631 | JIS | Japan | precipitation-hardening stainless |
| Special Alloy | SUS630 | JIS | Japan | precipitation-hardening stainless |
| Special Alloy | SUS440F | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS440C | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS440B | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS440A | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS431 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS420F2 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS420F | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS420J2 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS420J1 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS416 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS410F2 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS410J1 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS410 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUS403 | JIS | Japan | Martensitic special steel |
| Special Alloy | SUSXM27 | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS447J1 | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS434 | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS430F | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS430 | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS410L | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS410L | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS405 | JIS | Japan | ferritic stainless steels |
| Special Alloy | SUS329J4L | JIS | Japan | Austenitic-ferritic (Duplex) stainless steels |
| Special Alloy | SUS329J3L | JIS | Japan | Austenitic-ferritic (Duplex) stainless steels |
| Special Alloy | SUS329J1 | JIS | Japan | Austenitic-ferritic (Duplex) stainless steels |
| Special Alloy | SUSXM15J1 | JIS | Japan | austenitic stainless steel |
| Special Alloy | SUSXM7 | JIS | Japan | austenitic stainless steel |
- Special Steel suppliers
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