China Quenched and Tempered AISI 4140 /En19 /42CrMo4 /Scm440 Steel Round Bar

Quenched and Tempered AISI 4140 /EN19 /42CrMo4 /SCM440 Steel Round BarSupplied sizes:
Hot rolled:12mm to 310mm
Q&T(Quenched and tempered):12mm to 310mm
Cold drawn:6mm to 100mm
Peeled:20mm to 300mm
Forged:250mm to 1000mm
1.Standard and chemical compositionASTMA29/29MCSiMnCrMoPS
41400.38~0.430.15~0.350.75~1.000.80~1.100.15~0.25≤0.035≤0.040
DINWN-rCSiMnCrMoPS
1.72250.38~0.45≤0.400.60~0.900.90~1.200.15~0.30≤0.035≤0.035
GB/TCSiMnCrMoPS
42CrMo0.38~0.450.17~0.370.50~0.800.90~1.200.15~0.25≤0.030≤0.030
BSCSiMnCrMoPS
708M400.36~0.440.10~0.350.70~1.000.90~1.200.15~0.25≤0.035≤0.035
JISCSiMnCrMoPS
SCM4400.38~0.430.15~0.350.60~0.850.90~1.200.15~0.30≤0.030≤0.030
2.Heat Treatment
There are various heat treatments of the AISI 4140 Chrome-Molybdenum High Tensile Steel which are:
Forging
Stress relieving
Annealing
Normalizing
Nitriding
Tempering
Flame and induction hardening
Hardening3.Applications
AISI 4140 is used extensively in most industry sectors for a wide range of applications such as:Strippers bolts axle shafts
tool bodies bolsters holder blocks
stubs crankshafts tool holders
machinery parts and components mold bases couplings
connecting rods tie rods conveyor parts
ejectors reamer bodies chuck bodies
boring bars crow bars back up and support tooling
axles collets guides
logging parts fixtures piston rods
conveyor pins & rolls tracks shafts
jigs rams ejector pins
ways sprockets molds
hydraulic machinery shafts forks slides
studs cams gears
guide rods wear strips or parts pump shafts
drill collars sprockets torsion bars
forming dies ring gears gear racks
chain links lathe spindles brake dies
adapters valves spindles
logging parts trim dies arbors
milling spindles motor shafts pinch bars
pins pinions nuts
pump shafts tool holders sockets