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GB 1Cr18Ni9Si3 Details

1Cr18Ni9Si3 Application:Cold rolled steel sheet

Category Type Grade Microstructure Designations
Grades Stainless Steels - Special Steels 1Cr18Ni9Si3 Austenite China - GB , GB 4238 (1992) - Heat-resisting steel sheets and plates
GB/T 3280 (2007) - Cold rolled stainless steel sheets and plates
GB/T 4237 (1992) - Hot rolled stainless steel sheets and plates
GB/T 4239 (1991) - Cold rolled stainless steel and heat resisting steel strips

Chemical composition(wt.%) of 1Cr18Ni9Si3 grade: GB 4238 (1992)

Elements Min.(≥) Max.(≤)
C - 0.15
S 2.00 3.00
Mn - 2.00
P - 0.035
S - 0.030
Ni 8.00 10.00
Cr 17.00 19.00
Cold rolled steel sheet Cold rolled steel sheet

Mechanical properties of grade 1Cr18Ni9Si3 GB 4238 (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)
634 (≥) 949 (≥) 34 13 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical properties of grade 1Cr18Ni9Si3 GB 4238 (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
869 (≥) 757 (≥) 32 44 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
635 914 967

1Cr18Ni9Si3 - 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
1Cr18Ni9Si3 GB China
Cold rolled steel sheet
18Ni Maraging Steel ASTM USA
Typical applications for maraging include missile and rocket motor cases, landing and takeoff gear, munitions, aerospace, extrusion tooling, die casting, high performance shafting, gears and fasteners.

Relevant products

1Cr18Ni9Si3 Steel Stock

Steel grade Dimension Shape Unit Quantity Delivery state Query
1.4882 strip/sheet/plate stock 3.5x200x1000-2000mm Coil or Strip Kgs 200 Cold-Rolled+Annealed Enquiry

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