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Austenitic Stainless Steel
High Strength and Non-magnetic Austenitic Super Stainless Steel : DSH400F,DSN6,DSN9
Features and Applications
| Features | High hardness/strength stainless steel by cold working |
| Applications | Shaft for motor, guide pin for VTR, gasket, drilling screw |
Chemical Composition
| DAIDO BRAND | Chemical Composition（mass%） | JIS | |||||
| C | Mn | S | Ni | Cr | Mo | ||
| DSH400F | 0.10 | 1.8 | 0.2 | 9.5 | 18.0 | - | - |
| DSN6 | 0.09 | 1.5 | - | 12.0 | 18.0 | - | - |
| DSN9 | 0.03 | 6.0 | - | 10.0 | 23.0 | 2.0 | - |
Characteristics
DSH400F
- Hardness is higher than SUS303.
- Permeability at Hv400 is μ≦1.01, and it is machinable.
- Corrosion resistance is equivalent to SUS303.
DSN6
- Hardness Hv500 is achieved by cold working. Hardness becomes higher by precipitation hardening treatment.
- Permeability at Hv480～500 is μ≦1.01.
- Corrosion resistance is better than SUS304.
DSN9
- Proof strength is almost equivalent to duplex stainless steel (SUS329J1).
- It is available in the sea due to excellent seawater resistance. Hardness Hv500 is achieved by cold working.
- Hardness becomes higher by precipitation hardening treatment.
- Even 80% of cold working, permeability is low at μ≦1.01.
- Heat resistance is equivalent to SUH660, better than SUS310.
Technical Data
High Corrosion Resistance Austenitic Super Stainless Steel : SA-1
Features and Applications
| Features | High corrosion resistant stainless steel for nuclear power generation developed under the project of ANERI（Advanced Nuclear Equipment Research Institute）（Nuclear Standard GSUS317J4L） |
| Applications | Pump parts for nuclear power generation（Genkai Power Plant of Kyushu Electric Power Co., Inc. Takahama Power Plant of The Kansai Electric Power Co., Inc. Ikata Power Plant of Shikoku Electric Power Co., Inc.） |
Chemical Composition
| DAIDO BRAND | Chemical Composition（mass%） | JIS | ||
| Ni | Cr | Mo | ||
| SA-1 | 25 | 19 | 7 | SUS836L |
Characteristics
- Excellent seawater corrosion resistance; in seawater, corrosion resistance is equivalent to DSALOY625 and Ti. High strength; strength at normal temperature is 30% higher than SUS304 and SUS316
Technical Data
AusteniticFree-cuttingStainless Steel : 304BF
Features and Applications
| Features | Stainless steel with improved machinability retaining cold workability by adding special chemical element. |
| Applications | Tableware, container, bolt, nut |
Chemical Composition
| DAIDO BRAND | Chemical Composition（mass%） | JIS | |||||
| C | Si | Mn | Ni | Cr | Special element | ||
| 304BF | 0.07 | 0.5 | 0.7 | 9.0 | 18.5 | Added | SUS304 |
Mechanical Properties
| DAIDO BRAND | Mechanical Properties | Heat treatment | ||||
|
0.2%proof stress (N/mm2) |
Tensile strength (N/mm2) |
Elongation （%） |
Reduction （%） |
Hardness （HB） |
||
| 304BF | ≧205 | ≧520 | ≧40 | ≧60 | ≦187 | 1010～1150 speed cooling |
Characteristics
304BF
- Machinability is twice comparing to SUS304. Corrosion resistance is equivalent to SUS304.
- Free-cutting stainless steel with good cold workability. Cold workability is almost equivalent to SUS304.
- No inclusion of regulated chemical element to food machinery (e.g. Pb) .
Machinability and Corrosion Resistance
Austenitic Sulfuric Free-cutting Stainless Steel : DSN03FA
Features and Applications
| Features | Stainless steel with improved machinability by adding free-cutting component |
| Applications | Precision parts for automobile, office equipment, VTR, camera, watch and etc |
Chemical Composition
| DAIDO BRAND | Chemical Composition（mass%） | JIS | ||||||
| C | Si | Mn | P | S | Ni | Cr | ||
| DSN03FA | 0.07 | 0.2 | 1.7 | 0.03 | 0.3 | 9.0 | 18.0 | SUS303 |
Mechanical Properties
| DAIDO BRAND | Mechanical Properties | Heat treatment | ||||
|
0.2%proof stress (N/mm2) |
Tensile strength (N/mm2) |
Elongation （%） |
Reduction （%） |
Hardness （HB） |
||
| DSN03FA | ≧205 | ≧520 | ≧40 | ≧50 | ≦187 | 1010～1100 speed cooling |
Characteristics
DSN03FA
- Superior finished surface is achieved by good machinability.
- Suitable for high speed machining of automatic board.
- Mechanical property (under normal and high temperature) is equivalent to SUS304.
Machinability
Austenitic Stainless Steel of Improved Cold Workability : DSK2U,DSK3U,DSK6U
Features and Applications
| Features | Cold workability is greatly superior comparing to general JIS grade. |
| Applications | Small screw, bolt, cold working parts |
Chemical Composition
| DAIDO BRAND | Chemical Composition（mass%） | JIS | ||||
| C | Ni | Cr | Mo | Cu | ||
| DSK2U | 0.04 | 9.0 | 18.0 | 3.0 | SUSXM7 | |
| DSK3U | 0.03 | 11.0 | 17.0 | 2.5 | 3.0 | SUS316J1 |
| DSK6U | 0.05 | 10.0 | 18.0 | 3.0 | - | |
Characteristics
DSK2U
- Equivalent to SUSXM7
DSK3U
- Header property is better than SUSXM7.
- Corrosion resistance, especially sulfuric acid resistance, is superior to SUS316.
DSK6U
- Stainless steel for high strength header(About 10T strength is achieved by cold working.）
Technical Data
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