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1Cr18Ni9 Application:High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts
Category Type Steel grade Standard Country
Grades Special Alloy 1Cr18Ni9 GBT China

Chemical composition % of the ladle analysis of grade 1Cr18Ni9

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.15 Max 1.00 Max 2.00 max 0.035 Max 0.030 17.00-19.00 8.00-10.00
This page is mainly introduced the 1Cr18Ni9 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1Cr18Ni9,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Mechanical properties of grade 1Cr18Ni9
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)
872 (≥) 664 (≥) 43 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 432
Physical properties of grade 1Cr18Ni9
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
457 (≥) 147 (≥) 13 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
891 392 123
1Cr18Ni9 Range of products
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
Y1Cr18Ni9 GBT China
Improve the machinability, ablation resistance. Suitable for automatic lathe production of bolt and nut
1Cr18Ni9 GBT China
High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts
Y1Cr18Ni9Se GBT China
Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
1Cr18Ni9Ti GBT China
Seamless stainless steel tubes for boiler and heat exchanger

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