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

Technical Data_DSH400F_DSN6、DSN9

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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

Technical Data_SA-1

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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

Machinability and Corrosion Resistance_304BF

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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

Machinability_DSN03FA

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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

Technical Data_DSK

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