ГОСТ 3Χ2ΜΗΦ

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ГОСТ 3Χ2ΜΗΦ

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3Χ2ΜΗΦ Application:Carbide for cutting tools

Chemical composition(mass fraction)(wt.%) of the 3Χ2ΜΗΦ
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) W(%) Cu(%) Ti(%)
0.27-0.33 0.15-0.40 0.30-0.60 ≤0.030 ≤0.030 2.00-2.50 1.20-1.60 0.40-0.60 0.25-0.40 ≤0.20 ≤0.30 ≤0.30

Mechanical properties of grade 3Χ2ΜΗΦ

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
861 (≥) 399 (≥) 42 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical properties of grade 3Χ2ΜΗΦ

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
574 (≥) 763 (≥) 41 22 13 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
- - -
294 158 758 - - -

3Χ2ΜΗΦ 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