YASUGI SPECIALTY STEEL

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Materials for tools and cutlery
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Kigami 2
( Original steel )

Chemical composition (%) ( typical )

Std. AISI DIN W-Nr. JIS YSS
Designation - - - - Kigami 2
C - - - - 1.05-1.15
Si - - - - 0.10-0.20
Mn - - - - 0.20-0.30
Ni - - - - -
Cr - - - - -
Mo - - - - -
W - - - - -
V - - - - -
Co - - - - -
others - - - - P:<=0.030, S:<=0.006

Standard Heat Treatment temperature ( centigrade )

Annealing 740-770 Slow cooling
Quenching 760- 800 Water cooling
Tempering 180- 220 Air-cooling
Delivery hardness ( HBW ) 217 or under
Hardening hardness ( HRC ) 60 over

Application

High hardness, High quality tipped tool, Chisel, Razor, Sickle, Ax, Graver

YSS Recommended Tool Steels

YSS Symbol Features / Applications
Shirogami 1 Carbon steel with minimum impurities. Highest hardness / Highest quality tipped tool, Plane, Chisel, Razor
Shirogami 2 Carbon steel with minimum impurities. High hardness / High quality tipped tool, Chisel, Razor, Sickle, Ax, Graver
Shirogami 3 Carbon steel with minimum impurities. Middle hardness / Chisel, Sickle, Ax, Plane, Graver, Kitchen knife, Saw
Shirogami Nokozai Carbon steel with minimum impurities. / Highest quality Saw, Chisel
Kigami 2 Carbon steel with minimum impurities. High hardness / High quality tipped tool, Chisel, Razor, Sickle, Ax, Graver
Aogami 1 Alloy steel with W and Cr, to improve heat-treatment properties and wear resistance. / Highest quality Plane, other tipped tool, Razor, Kitchen knife
Aogami 2 Alloy steel with W and Cr, to improve heat-treatment properties and wear resistance. / High quality Plane, other tipped tool, Kitchen knife, Sickle
Aogami Super Alloy steel with W, Cr, V, to improve heat-treatment properties and wear resistance. / High quality Plane, other tipped tool, Kitchen knife, Sickle
KK Alloy steel with Cr, to improve heat-treatment properties and wear resistance. / Various Highest quality Kitchen knife, Razor blade
GIN(TM) 1 High Cr stainless steel with Mo, to improve corrosion resistance. / Various Kitchen knife, Scissors
GIN(TM) 3 Stainless steel which has hardness and sharpness comparable to carbon steel. / Various Kitchen knife, Scissors
GIN(TM) 5 Stainless steel for the razor blade replacement. / Various Kitchen knife, Saw, Razor blade
ATS(TM) 34 Popular Stainless blade steel. / Custom knife, High quality cutlery tool
ZDP(TM) 189 Stainless blade steel made by powder metallurgy process. / Custom knife, High quality cutlery tool
YSS(TM)
  • YXM(TM) 1
  • YXM(TM) 4
  • YXM(TM) 27
  • YXM(TM) 42
  • YXM(TM) 60
  • YXR(TM) 3
  • YXR(TM) 33
  • YXR(TM) 7
  • XVC(TM) 5
  • YHX(TM) 2
  • HAP(TM) 10
  • HAP(TM) 40
  • HAP(TM) 50
  • HAP(TM) 72
  • HAP(TM) 5R
  • DAC(TM)
  • DAC-MAGIC(TM)
  • DAC(TM) 10
  • DAC(TM) 55
  • DAC(TM) 3
  • DAC(TM) 40
  • YEM(TM)-K
  • MDC(TM)-K
  • FDAC(TM)
  • DM
  • SA 1
  • YHA(TM)
  • YHB(TM) 2
  • YMB(TM) 1
  • YSM(TM)
  • YCK(TM) 2
  • YCB(TM) 1
  • SLD(TM)
  • SLD-MAGIC(TM)
  • SLD(TM) 8
  • SLD(TM) 10
  • ARK(TM) 1
  • ACD(TM) 8
  • CRD(TM)
  • ACD(TM) 37
  • SGT(TM)
  • YCS(TM) 3
  • HMD(TM) 5
  • CENA 1(TM)
  • CENA(TM)-V
  • HI-PM MAGIC
  • HI-PM PRO
  • HI-PM 1
  • HI-PM 7
  • HI-PM 31
  • HI-PM 38
  • HI-PM 38S
  • PSL(TM)
  • YAG(TM)
  • HI-PM 75
  • HI-PM 77
  • ZCD(TM)-M
  • ZDP(TM) 4
  • Shirogami 1
  • Shirogami 2
  • Shirogami 3
  • Shirogami Nokozai
  • Kigami 2
  • Aogami 1
  • Aogami 2
  • Aogami Super
  • KK
  • GIN(TM) 1
  • GIN(TM) 3
  • GIN(TM) 5
  • ATS(TM) 34
  • ZDP(TM) 189
AISI
  • M2
  • M42
  • T1
  • H13
  • H10
  • H19
  • L6
  • O7
  • D2
  • D3
  • O1
  • W5
  • P21
  • P20
  • 420F
  • 630
DIN
  • HS6-5-2
  • HS2-9-1-8
  • HS10-4-3-10
  • HS18-0-1
  • X40CrMoV5-1
  • 32CrMoV12-28
  • 55NiCrMoV6
  • X153CrMoV12
  • X210Cr12
  • 100MnCrW4
  • X153CrMoV12
  • X30Cr13
  • X5CrNiCuNb16-4
W-Nr.
  • 1.3343
  • 1.3247
  • 1.3207
  • 1.3355
  • 1.2344
  • 1.2365
  • 1.2713
  • 1.2379
  • 1.2080
  • 1.2510
  • 1.2330
  • 1.2379
  • 1.4028
  • 1.4542
JIS
  • SKH51
  • SKH55
  • SKH59
  • SKH57
  • SKH2
  • SKH40
  • SKD61
  • SKD7
  • SKD8
  • SKT4
  • SKS2
  • SKS7
  • SKD11
  • SKD1
  • SKS3
  • SKS93
  • SUS420J2
  • SUS630
Applications
  • High speed steel
  • Hot work tool steel
  • Cold work tool steel
  • Plastic mold steel
  • Cutlery steel

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