Pre-Machined Forged Steel Round Bars-Steel Forged Square, Flat&Hex Bars

Pre-Machined Forged Steel Round Bars-Steel Forged Square, Flat&Hex Bars. We are the leading factory for high-quality forged steel bars. Find the best products here!
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PRODUCTS DETAILS

Basic Info.

Model NO.
forged steel bar
Special Use
Cold Heading Steel, Mold Steel
Application
Machine Parts
Supply Condition
Qt/Normalized/Only Forged
Ultrasonic Test
Sep1921-84 Calss C/C D/D
Tolerance
-0/+5mm for Diameter
Forged Parts
Forging Rings
Main Shape
Forged Square Bar
Transport Package
Seaworth Packaging
Specification
Diameter: 200mm-1000mm
Trademark
Shandong
Origin
China
Production Capacity
2000tons

Product Description

4140 SCM440 42CrMo4 1.7225 Hot Forged Alloy Steel Bar

Forging parts
Forging rings
 
C Si Mn P S Cr Ni Mo Cu V Al
 
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
 
<=0.2
 
<=0.05
 
0.02/
0.05
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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