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40CrMoV4-6 DIN1.7711 Alloyed Carbon Steel

40CrMoV4-6 DIN1.7711 Alloyed Carbon Steel alloyed carbon steel 40CrMoV4-6 DIN1.7711 Alloyed Carbon Steel 40CrMoV4 6 DIN1

40CrMoV4-6 DIN1.7711 Alloyed Carbon Steel

Introduction:

Alloyed carbon steel.

Application:

Staticaly and dymamicaly stressed components for vehicles, engines and machines, for parts of lager cross sections, gears, crankshafts. Hardness as surface hardened is more than 54 HRC.

Quality Standard:

EN10269 Steels and Nickel Alloys for Fasteners with Specified Elevated and or Low Temperature Properties

All Grades Comparison:

Material No. EN
1.7711 40CrMoV4-6

Chemical Composition(%):

C Mn Si P S Cr Mo V
0.36-0.44 0.45-0.85 0.40 max 0.030 max 0.030 max 0.90-1.20 0.50-0.65 0.25-0.35

Typical Mechanical Properties (Quenched and Tempered):

Dia Scope (mm) Tensile Strength Rm (Mpa) Yield Strength R2 (Mpa) Elongation (longitudinal direction) Al (%) Area Reduction Z (%) Impact Energy Joules (20°C) (KCV J)
100mm max 850-1000 700 min 14 min 45 min 30 min
100mm-160mm 850-1000 640 min 14 min 45 min 25 min

HEAT TREATMENT:

  • Forging:Hot forming temperature: 1100-850oC.
  • Soft annealing:Heat to 650-730oC, cool slowly. This will produce a maximum Brinell hardness of 241.
  • Hardening:Harden from a temperature of 880-930oC followed by oil or water (conditional) quenching.
  • Tempering:empering temperature: 670-730oC.

Mill′s test certificate:

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.