AISI4140 8620 4340 Forged Steel Bar Forging Rings Forged Shaft

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB
• Model NO.: forged steel bar
• Composition: Alloy Steel Bar
• Technique: Forged
• Shape: Bar
• Surface Treatment: Black or Machining
• Special Use: Mold Steel
• Application: Auto Parts
• Supply Condition: Hot Forged
• Steel Shape: Round Bar/Square Bar/Rings
• Surface: Black or Bright Surface
• Qt Treatment: Avaliable
• Other Heat Treatments: Annealling
• Main Grade: AISI4140/42CrMo/4340/8620
• Free Sample: Yes
• Tolerance: -0mm/+0.1mm
• Transport Package: Seaworth Packaging
• Specification: 200-1000mm
• Trademark: Shandong
• Origin: China
• Production Capacity: 8000tons

Product Description

AISI4140 42CrMo SCM440 4150 4145 forged steel bar

Grade:4140
Process: Forged from vacuum degassed ingots.
Shape: Round /Square/Plat/shaft/block

Similar grade in different standard	SAE4140/1.7225/SCM440/42CrMo4/42CrMo
Available sizes	Forged steel round bar:200mm-800mm Forged steel square:block200mm*200mm-500mm*500mm Forged steel flat block (150mm-500mm)*(200mm-500mm) Forged Shaft:according to client's drawing,we also can supply drawing according to client's requirement
Production Process	EAF+LF+VD ( necessary) +forged+UT+ rough machined(optional)  +UT+ Heat Treatment (optional)+UT+Precision machining
Delivery condition	Forged+black surface Forged+rough machined Forged+rough turned+QT/annealed/normalized
Heat treatment:	Normalized / Annealed / Quenched / tempered (optional)
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,100% UT test according to :SEP1921-84,GR.3 CLASS C/c or D/d
Packing situation	standard seaworthy packing or as customer required
Delivery time	7days for stock,30days for new material
Payment term	T/T or L/C
Our mill's certificates	ISO901&ISO.TS16949,ISO4001,OHSAS18001 Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel; ISO/TS16949 2009;Europe CE Mark Certificate;JIS MARK,KS MARK.

 
Factory Quality Control
PO=>Make production plan(By professional QA team)=>Select perfect raw material(100% checked by Metal Analyzer)=>Cut raw material(marking transfer)=>Heating&forged(production record to control the forge ratio=>HT after forged(Time&TEMP record)=>check black forged(grain size,UT&Sizes)=>rough machining(UT&Sizes)=>Heat treatment(controlled by computers)=>check mechanical property&hardness(universal testing machine&KING hardness tester)=>Semi finish machining(UT,MT&sizes)=>final check(all QC records)=>Packing&warehousing(all docs)=>delivery on time
Our advantage

1. Computer-Aided Design (CAD) System
2. Multiple Wire EDM (Electric Discharge Machining) Machines
3. Plunge EDM (Solid Electrode Electric Discharge Machining)
4. Complete Manufacturing of Carbide Dies
5. Contoured Straightener Rolls
6. Profile Shape Shear Knives
7. Fast Tooling Changes and Modifications
8. An Advanced Quality Planning System Used for Prototyping
   

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