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Chemical composition % of the ladle analysis of grade 40X9C2

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Ti(%)
0.35-0.45 2.00-3.00 Max 0.80 Max 0.03 Max 0.025 8.00-10.00 Max 0.60 Max 0.20
40X9C2
Mechanical properties of grade 40X9C2
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)
719 (≥) 794 (≥) 32 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 443
Physical properties of grade 40X9C2
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
428 (≥) 475 (≥) 41 13 31 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
626 293 527
40X9C2 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
40X9C2
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

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