| Kind symbol | Features |
|---|---|
| SUS302 | 18Cr−8Ni Standard type of steel. Both SUS303 and SUS304 are SUS302 with improvements. Good corrosion resistance and mechanical properties due to the addition of Ni. |
| SUS303 | SUS302に S・P Is added to improve machinability. However, the corrosion resistance is slightly inferior. Add Mo, Improves corrosion resistance。 |
| SUS304 SUS304L |
An improved version of SUS302 with a low carbon content and excellent corrosion resistance and weldability. Austenitic
The most standard stainless steel. SUS304L has a lower carbon content than SUS304 and has improved intergranular corrosion resistance and weldability. |
| SUS316 SUS316L |
Mo As a heat-resistant steel, it has good corrosion resistance (pitting corrosion) and acid resistance due to its addition, and has high high-temperature strength.
Used. SUS316L has a lower carbon content than SUS316 and has improved intergranular corrosion resistance and weldability. |
| SUSXM7 | Work hardening due to cold working is suppressed by adding Cu to SUS304. |
| SUS430 | 18Cr Standard type of steel with good cold workability and corrosion resistance. Due to its low price, it is used in many applications.。 |
| SUS434 | SUS430にMo The corrosion resistance has been improved by adding. |
| SUS410 | A typical martensitic stainless steel. It has excellent mechanical properties and corrosion resistance after heat treatment. |
| SUS403 | Si・Cr By reducing the component range of, the corrosion resistance is improved and the toughness after heat treatment is improved. valve・ It is used for pump shafts, cutlery, bolts, nuts, steam turbine blades, jet engine parts, etc. |
| SUS416 | S・P The machinability of 13Cr steel has been improved by the addition of. Corrosion resistance is slightly inferior to the standard type. |
| SUS431 | NiThe toughness is improved by the addition, and the corrosion resistance is improved by the addition of Cr. The martensitic stainless steel has the best corrosion resistance. It is used in papermaking machines, marine shafts, aircraft parts, etc. |
| SUS440C | It has the highest hardness among stainless steels and has excellent wear resistance, making it suitable for dies and ball bearings. Used. |