4140 SCM440 42CrMo4 1.7225 Hot Forged Alloy Steel Bar
EN24 EN19 8620 4140 hot forging steel bars hot forged parts/shaft
| C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
0.38/0.43 |
0.15/0.35 |
0.65/0.85 |
<=0.025 |
<=0.025 |
0.7/0.9 |
1.65/2.0 |
0.2/0.3 |
Grade:4140
Process: Forged from vacuum degassed ingots.
Shape: Round /Square/Plat/shaft/block
alloy steel round bar/forged alloy steel bar rough machine
| Grade/Material |
4140 4130 4150 SCM440 SCM435 SCM420 SCM415 ASTM A36 A105 S20C S45c |
| Available sizes |
Forged steel round bars:200mm to 800mm
Forged steel square block:200mm*200mm to 500mm*500mm
Forged steel flat block:(150mm to 500mm)*(200mm to 500mm)
Forged shafts
Forged parts/forging rings according to drawing |
| Size tolerance |
Length tolerance:+100mm/-0mm
Straigthness:<=4mm/m |
| Delivery condition |
Hot forged, turned or black surface, annealed or QT as customer's request
|
| Applications |
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
|
| Inspection |
Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT sep1921 C/c |
| Packing situation |
standard seaworthy packing or as customer required |
| Process |
EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) + Heat Treatment (optional) |
| Delivery time |
7days for stock,30days for new material |
| Payment term |
T/T or L/C |
1.Quality Control
Both end of each bar must be cut.
Ladle furnanced and vacuum de-gassed
Show heat No. on each bar
Surface condition the surface of the hot rolled square bar shall be free cracks, scar and wrinkles that affect the use of the billets. In case there is the above-mentioned defect, it shall be remove.
The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.
2.Payment term:TT or LC
3.Free sample:Yes
4.steel bar Inspection:
5.Our steel bar mill's certificate
ISO901&ISO.TS16949,ISO4001,OHSAS18001
Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel;
ISO/TS16949 2009 for Manufacturing of Special steel;
Europe CE Mark Certificate;
JIS MARK,KS MARK.
6.Our service
With dynamic and passionate professional sales team and technical team,Our company Dajin make great efforts to integrate China's steel resources and dedication to customers the provision of specialized steel products and services.Hope establish a good relationship with clients, growth together.
Hot forging process
UT TEST OF FORGED STEEL BAR BEFORE SHIPMENT
Forged steel bar shipments
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