ГОСТ 40X9C2

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ГОСТ 40X9C2

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40X9C2 Application:Martensite Heat-Resistant Steel

Chemical composition(mass fraction)(wt.%) of the 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

Mechanical properties of grade 40X9C2

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
561 (≥) 196 (≥) 24 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

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
385 (≥) 147 (≥) 23 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
661 661 929 - - -

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