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GB 1Cr18Ni12 Details

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1Cr18Ni12 Application:Compared with 0 cr19ni9, processing low hardenability. Used for spinning processing, special drawing, cold heading

Category Type Grade Microstructure Designations
Grades Stainless Steels 1Cr18Ni12 Austenite China - GB , GB/T 1220 (1992) - Stainless steel bars
GB/T 3280 (2007) - Cold rolled stainless steel sheets and plates
GB/T 4226 (2004) - Cold finished stainless steel bars
GB/T 4237 (1992) - Hot rolled stainless steel sheets and plates
GB/T 4239 (1991) - Cold rolled stainless steel and heat resisting steel strips
GB/T 4240 (1993) - Stainless steel wires
GB/T 4356 (2002) - Stainless steel wire rods

Chemical composition(wt.%) of 1Cr18Ni12 grade: GB/T 1220 (1992)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.12
Si - 1.00
Mn - 2.00
P - 0.035
S - 0.030
Ni 10.50 13.00
Cr 17.00 19.00
1Cr18Ni12

Mechanical properties of grade 1Cr18Ni12 GB/T 1220 (1992)

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)
161 (≥) 343 (≥) 43 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical properties of grade 1Cr18Ni12 GB/T 1220 (1992)

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
389 (≥) 284 (≥) 24 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
716 894 928

1Cr18Ni12 - 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
1Cr18Ni12 GB China
Compared with 0 cr19ni9, processing low hardenability. Used for spinning processing, special drawing, cold heading
1Cr18Ni12Mo2Ti GB China
Seamless stainless steel tubes for boiler and heat exchanger
1Cr18Ni12Mo3Ti GB China
Seamless stainless steel tubes for boiler and heat exchanger

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