Chemical Composition

Classifi-cation Chara-cteristics DAIDO BRAND Chemical Composition(mass%) Equivalent
C Si Mn Ni Cr Mo Free-cutting Special element JIS AISI
Martensitic Free-cutting DSR03F 0.12 0.4 0.5 - 12.2 Added SUS403 403
DSR10F 0.10 0.4 0.5 - 12.5 Added SUS410F2 -
DSR10FA 0.05 0.4 0.5 - 13.0 Added SUS410F2 -
DSR16F 0.10 0.4 1.0 - 13.0 Added SUS416 416
DSR16FC 0.14 0.3 1.2 - 12.4 Added SUS416 416
DSR20F 0.33 0.4 0.5 - 13.0 Added SUS420F2 -
DSR20FD 0.32 0.3 1.0 - 12.3 Added SUS420F2 -
DSR7F 0.70 12.0 Added
High-strength DSR31H 0.18 0.6 0.7 1.7 15.8 SUS431 431
DSR7 0.70 0.5 0.6 - 12.0 Added - -
DSR03H 0.13 0.3 0.5 0.4 11.8 Added SUS403 403
DSR20H 0.19 0.5 0.6 - 13.5 SUS420J1 420
DSR20HA 0.23 0.4 0.5 - 13.5 SUS420J1 420
DSR20HB 0.40 0.4 0.4 - 13.5
For Cold Forging DSR10U 0.06 0.3 0.5 - 13.5 SUS410 410
DSR10UA 0.05 0.3 0.5 - 13.5 SUS410 410
LAK41 0.50 0.2 0.15 - 16.0 Added - -
LAK42 0.52 0.2 0.2 - 13.0 Added SUS440A -
For Cutting knife DSR1K2 0.20 ≦1.00 ≦1.00 ≦0.50 13.5 - SUS420J1 -
DSR1K3 0.30 ≦1.00 ≦1.00 ≦0.50 13.5 - SUS420J2 -
DSR1K6 0.60 ≦1.00 ≦1.00 ≦0.50 13.5 0.1 Added - -
DSR1K7 0.70 ≦1.00 ≦1.00 ≦0.50 13.5 0.1 Added - -
DSR1K8 0.80 ≦1.00 ≦1.00 ≦0.50 13.5 0.1 Added - -
Ferritic Free-cutting DSR1F 0.12 0.4 1.3 - 17.0 Added Added Added - -
DSR30F 0.08 0.4 0.5 - 17.0 Added SUS430F 430F
DSR30FA 0.03 0.4 0.5 - 18.0 Added SUS430F 430F
DSR6F 0.01 0.5 1.2 20.0 2.0 Added - -
Cold Workability DSR30U 0.06 0.3 0.5 - 16.5 SUS430 430
LAK51 0.01 0.15 0.3 19.0 Added SUS430LX
LAK52 0.01 0.15 0.3 - 20.0 1.0 Added - -
Austenitic Free-cutting 304BF 0.07 0.5 0.7 9.0 18.5 Added SUS304 304
303FL 0.07 0.5 0.7 9.0 18.0 Added SUS303 303
High-strength
Non-magnetic
Free-cutting
DSH400F 0.10 1.8 9.5 18.0 Added
High-strength,
Non-magnetic
DSN6 0.09 1.5 12.0 18.0 SUS304N2
DSN9 0.03 6.0 10.0 23.0 2.0
DNM110 15.0 3.0 18.0 1.0
Corrosion Resistance SA-1 25.0 19.0 7.0 SUS836L
Cold Workability DSK2U 0.04 9.0 18.0        
DSK3U 0.03 11.0 17.0 2.5        
DSK6U 0.05 10.0 18.0        
Precipitation Hardening Cold Workability SUS630-S ULC 4.0 16.0 Added SUS630
DSP1H 0.02 0.20 0.2 6.5 13.0 Added
Duplex High-strength・Corrosion Resistance DSD1H 0.02 0.6 0.8 5.5 24.0 1.5 Added SUS329J1
DSD5 0.03 0.7 0.7 5.5 24.0 2.8 SUS329J4L
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