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
Similar Grades:
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: 1100-850°C.
· Soft annealing:Heat to 650-730°C, cool slowly. This will produce a maximum Brinell hardness of 241.
· Hardening:Harden from a temperature of 880-930°C followed by oil or water (conditional) quenching.
· Tempering:empering temperature: 670-730°C.
Mill′s test certificate:
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}