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DIN 40CrMnNiMo8-6-4 Details

Alloyed CrMnNiMo steel

DIN 40CrMnNiMo8-6-4 Standard Download

40CrMnNiMo8-6-4 Datasheet
DIN 40CrMnNiMo8-6-4

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40CrMnNiMo8-6-4 Application:Alloyed CrMnNiMo steel
Category Type Grade Designations
Grades Tool Die Steels 40CrMnNiMo8-6-4 Germany - DIN , DIN EN ISO 4957 (1999) - Tool steels (ISO 4957:1999)
Chemical composition(mass fraction)(wt.%)
Elements Min.（≥） Max.（≤） Similar Remarks
C 0.35 0.45
Si 0.20 0.40
Mn 1.30 1.60
P - 0.035
S - 0.035
Cr 1.80 2.10
Mo 0.15 0.25
V - -
Ni 0.90 1.20
Mechanical properties of grade 40CrMnNiMo8-6-4
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)
362 (≥) 632 (≥) 43 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Physical properties of grade 40CrMnNiMo8-6-4
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
683 (≥) 672 (≥) 13 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 244
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
934 264 666
40CrMnNiMo8-6-4 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
40CrMnNiMo8-6-4 DIN Germany
Alloyed CrMnNiMo steel