STAS/SR 40CrNi12q

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STAS/SR 40CrNi12q

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40CrNi12q Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%) of the 40CrNi12q
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.36-0.44 0.17-0.37 0.50-0.80 0.035 0.035 0.45-0.75 1.00-1.40 0.3

Mechanical properties of grade 40CrNi12q

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
975 (≥) 734 (≥) 12 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical properties of grade 40CrNi12q

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
519 (≥) 276 (≥) 12 34 22 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
- - -
148 159 295 - - -

40CrNi12q 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