China Forging Bars Scm440 4140 1.7225 42CrMo4 Forged Alloy Steel

forged bars SCM440 4140 1.7225 forged alloy steel
SCM440 SCM435 4130 4140 4145 forged bars
1.forged steel 4140 Chemical Composition and alternative grade (%):

GradeCSiMnPSCrMo42CrMo40.38-0.450.17-0.370.40-0.70≤0.035≤0.0350.90-1.200.15-0.251.72250.38-0.45≤0.400.60-0.90≤0.025≤0.0350.90-1.200.15-0.3041400.38-0.430.15-0.350.75-1.00≤0.035≤0.0400.80-1.100.15-0.25

2.Forged steel bar Available sizes:
Round: Dia. 16 - 1000mm
16mm-350mm with hot rolled supply condition;
200-1000mm with forged supply condition
3.Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.
4.Applications:
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
5.Heat Treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
6. Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C
7. Packing situation: standard seaworthy packing or as customer required
8. Delivery time: 30 days after order /confirm/ied
9. Process: EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) + Heat Treatment (optional)
10.Other grade we can supply
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Our advantageComputer-Aided Design (CAD) SystemMultiple Wire EDM (Electric Discharge Machining) MachinesPlunge EDM (Solid Electrode Electric Discharge Machining)Complete Manufacturing of Carbide DiesContoured Straightener RollsProfile Shape Shear KnivesFast Tooling Changes and ModificationsAn Advanced Quality Planning System Used for Prototyping