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GB 9Cr18MoV Details

9Cr18MoV

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9Cr18MoV Application:Stainless steel bars
Category Type Grade Microstructure Designations
Grades Stainless Steels 9Cr18MoV Martensite China - GB , GB/T 1220 (1992) - Stainless steel bars
GB/T 4356 (2002) - Stainless steel wire rods
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C 0.85 0.95
Si - 0.80
Mn - 0.80
P - 0.035
S - 0.030
Ni - 0.60
Cr 17.00 19.00
Mo 1.00 1.30
V 0.07 0.12
Mechanical properties of grade 9Cr18MoV
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)
328 (≥) 452 (≥) 23 34 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 322
Physical properties of grade 9Cr18MoV
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
837 (≥) 552 (≥) 14 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 121
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
657 189 583
9Cr18MoV 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
9Cr18MoV GB China
Stainless steel bars