42CrMo4 4340 8620 4140 Hot Forging Steel Bars Hot Forged Parts/Shaft

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB
• Composition: Alloy Steel or Carbon Steel
• Technique: Forged
• Shape: Bar
• Surface Treatment: Black Surface or Rough Machining
• Model NO.: forged steel bar
• Special Use: Free Cutting Steel, Mold Steel
• Application: Structural Steel Bar
• Heat Treatment: Qt/Normalized/Annealing
• Dia Tolerance of Rough Machining: -0/+0.5mm
• Ready Stock Grade: 4140 1045
• Delivery Time: 30days
• Transport Package: Seaworthy Packaging
• Specification: 200mm-1000mm
• Trademark: Shandong
• Origin: China
• Production Capacity: 5000tons

Product Description

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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