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GB Y1Cr18Ni9Se Details

Y1Cr18Ni9Se Stainless and heat resisting steels

Austenitic stainless steel. Grade Y1Cr18Ni9Se was replaced by new designation Y12Cr18Ni9Se according to GB/T 20878 (2007)

Y1Cr18Ni9Se Application:Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws

Category Type Grade Microstructure Designations
Grades Stainless Steels - Special Steels Y1Cr18Ni9Se Austenite China - GB , GB/T 1220 (1992) - Stainless steel bars
GB/T 4226 (2004) - Cold finished stainless steel bars
GB/T 4240 (1993) - Stainless steel wires
GB/T 4356 (1984) - Stainless steel wire rods

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤)
C - 0.15
Si - 1.00
Mn - 2.00
P - 0.200
S - 0.060
Ni 8.00 10.00
Cr 17.00 19.00
Se - 0.15

Mechanical properties of grade Y1Cr18Ni9Se

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
125 (≥) 661 (≥) 42 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical properties of grade Y1Cr18Ni9Se

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
254 (≥) 927 (≥) 22 23 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 132
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
561 612 274

Y1Cr18Ni9Se - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
Y1Cr18Ni9Se GB China
Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws

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