SAE4140 Forging Steel Gear Shaft for Transmission

• Customization: Available
• Application: Aerospace Industry, Agricultural Equipment, Automotive Industry, Construction Industry
• Certification: CE, ISO9001
• Model NO.: forging steel gear shaft
• Corrosion Resistance: Medium Corrosion Resistance
• Journal Diameter Dimensional Accuracy: IT6-IT9
• Journal Relative Position Accuracy: 0.01-0.03mm
• Journal Surface Roughness: 0.63-0.16μm
• Shaft Type: Solid Shaft
• Strength: Medium Strength
• Surface Finish: Grinding
• Tolerance: Standard Tolerance
• Cncturning: Roungh Machining
• Size: 1/4′′ to 500′′
• Technology: Forging
• Od: 1/2′′ to 500′′
• Material: Alloy Steel
• Load: Drive Shaft
• Stiffness & Flexibility: Stiffness / Rigid Axle
• Transport Package: Box or Wooden Package
• Specification: forging 4140 steel gear shaft
• Trademark: forging steel shaft
• Origin: China
• HS Code: 73269090
• Production Capacity: 3000ton/Month

Product Description

Name: Forging sae4140 steel gear shaft for transmission
 

Material	42crmo4, 50Mn,4140,60CrMo,9Cr2Mo,90Cr3Fo
Forging equipment	5000T Open die hydroress
Application	Roller is the key parts of rolling mill in steel mill factory,use the pressure of one pair or one group roller to roll steel when roller rotates
Melting process	EF + LF + VD
Production process	Forging+heat treatment+rough machining+finish machining
Forging ratio	≥3.5
Applicable standard	ASTM,ASME,DIN,JIS,ISO,BS,API,EN
Executive Standard	JB/GB/EN/DIN/JIS/ASME/ASTM/ISO
Certification authority	ISO,BV,SGS, IST, UL,CTI
Delivery terms	Rough machining(N+T);Finish machining(Q+T)
Test machine	Spectrograph,UT device,tensile and compact test machine,metalloscope,outside micrometer,bore dial indicator,hardness test machine
Service	Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer's requirements as the principal thing, and pay attention on the products quality.

Custom properties

Material elements	C	Si	Mn	P	S	Cr	Ni	Mo	Others
50Mn	0.48-0.56	0.17-0.37	0.70-1.00	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25
4140	0.38-0.43	0.15-0.35	0.60-0.90	≤0.035	≤0.040	0.80-1.10	--	0.15-0.25	-
60CrMo	0.55-0.65	0.17-0.30	0.450-0.80	≤0.020	≤0.015	0.50-0.80	≤0.25	0.20-0.40
9Cr2Mo	0.85-0.95	0.25-0.45	0.20-0.40	≤0.025	≤0.025	1.70-2.10	≤0.25	0.20-0.40

 

Mechanical properties	Dia.(mm)	TS/Rm(Mpa)	YS/Rp0.2(Mpa)	EL/A5(%)	RA/Z(%)	Type Of notch	Impact energy	HBW
50Mn	Ø10	≥645	≥390	≥13	≥40	V	≥39	≤255HBS
4140	Ø10	740~1000	450~850	≥12	≥25	V	≥40	≤250HBS

Commerce clause

MOQ	1PC
MAX Dia	1600MM
Delivery time	30-60days
Package	Plywood pallet,Steel frame
Delivery terms	FOB;CIF;CFR;DDU;
Payment terms	T/T,LC
Type of shipping	By Sea or By Air

Process procedure:
Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment.