ГОСТ 8Χ3

Location » Home » Grades > Special Alloy > 8Χ3

Grades | Special Alloy | 8Χ3

ГОСТ 8Χ3

Print

8Χ3 Application:Carbide for cutting tools

Chemical composition(mass fraction)(wt.%) of the 8Χ3
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) W(%) Cu(%) Ti(%)
0.75-0.85 0.15-0.35 0.15-0.40 ≤0.030 ≤0.030 3.20-3.80 ≤0.35 ≤0.20 ≤0.15 ≤0.20 ≤0.30 ≤0.03

Mechanical properties of grade 8Χ3

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition HBW
663 (≥) 843 (≥) 24 11 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical properties of grade 8Χ3

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm
626 (≥) 897 (≥) 14 24 33 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		 - - -
774 197 899 - - -

8Χ3 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